Changelog

Starting with version v0.83.0, this changelog includes only user-facing changes. If you are looking for developer-facing changes, check out CHANGELOG-API.md.

v1.71.0/v0.165.0

🛑 Breaking changes 🛑

• pkg/confighttp: Remove deprecated fields IdleConnTimeout, MaxIdleConns, MaxIdleConnsPerHost, DisableKeepAlives. (#15973)

🚀 New components 🚀

• pkg/xreceiverhelper: Add xreceiverhelper with an ObsReport that reports profile sample metrics per sample type. (#16251) ObsReport.EndProfilesOpBySampleType records the otelcol_receiver_{accepted,refused,failed}_profile_samples metrics with an additional sample_type attribute, formatted as "type:unit", as a single payload can hold multiple profiles with different sample types. Use ProfileSampleCountsByType to compute the sample counts before the profiles are passed to the next consumer, as the data may be mutated downstream. The OTLP receiver now uses EndProfilesOpBySampleType.

💡 Enhancements 💡

• pkg/configmiddleware: allow to override the dialer used by confighttp.ToClient and configgrpc.ToClient (#16019)
• pkg/featuregate: Allow underscores in feature gate IDs. (#16243)
• pkg/pdata: Improve performance of pcommon.Map Get, Range, and All functions. (#16282, #16321)
• pkg/pdata: Reduce number of allocations when updating an oneof primitive (#16226)
• pkg/service: Service now supports configuring additional resource detectors for internal telemetry as per the update to otelconf v0.26.0. (#15869)
• pkg/service: Warn at startup when a pipeline combines the batch processor with exporterhelper batching. (#15965) Detection does not cross connectors or inspect exporter wrappers that hide exporterhelper's batching capability.
• pkg/xprocessorhelper: Instrument xprocessorhelper.NewProfiles with otelcol_processor_incoming_items, otelcol_processor_outgoing_items, and otelcol_processor_internal_duration, consistent with the other signal constructors. (#15523)
• processor/memory_limiter: Add garbage_collector config section to allow disabling forced garbage collection via enabled field. (#15081)
• processor/queue_batch: Promote the queue_batch processor to beta for traces, metrics, and logs, and to alpha for profiles. (#12022)
• processor/queue_batch: Report queue and batch metrics as processor metrics (#14038)

🧰 Bug fixes 🧰

• cmd/mdatagen: Fix panic in Attribute.TestValue() and Attribute.TestValueTwo() when handling single-element or empty enum attributes. (#15644)

• cmd/mdatagen: Fix generated metrics tests failing when a metric migration's through_gates feature gates are promoted past alpha. (#16249) The generated tests now explicitly set the migration feature gates for each test case and restore their previous state on cleanup, instead of assuming the gates are disabled by default. When a gate's stage forbids the state a case needs, such as disabling a stable gate, the metrics-builder test skips only its gate-dependent count and warning assertions, and the per-combination versioned-metric sub-tests for that combination are skipped.

• cmd/mdatagen: Generate README configuration docs for exported_configs definitions. (#16164) Object definitions and scalar type aliases under exported_configs are now rendered in the README after the config: table. Packages that only declare exported_configs can now get generated docs once their README contains the config markers. Components that only declare exported_configs no longer get an empty configuration table.

• cmd/schemagen: Handle file-not-found errors when loading schemas (#15925)

• pkg/configgrpc: Bound the zstd decoder window by the configured maximum receive message size instead of the library default. (#16280) A zstd frame declares its window in the header and the decoder allocated it before producing any output, so a small crafted message could drive a large allocation regardless of max_recv_msg_size_mib. The decoder is also returned to its pool as soon as gRPC is done with a message.

• pkg/confighttp: Bound the zstd decoder window by max_request_body_size instead of the library default. (#16280) A zstd frame declares its window in the header and the decoder allocated it before producing any output, so a small crafted body could drive a large allocation regardless of the configured request body size.

• pkg/confighttp: Accept Content-Encoding: identity as equivalent to no encoding. (#15122)

• pkg/exporterhelper: Fix a Cannot unref freed data panic when a persistent sending queue forwards requests into another pipeline (#15256)

• pkg/exporterhelper: With wait_for_result, canceling a request that the sending queue already accepted no longer returns early (#16255) Previously a canceled context made it return context.Canceled while the request was still delivered, so callers could report a failure for data that had been sent. Canceling still takes effect while nothing has been done with the request.

• pkg/pdata: Add recursion depth limit (100) to proto unmarshalling of AnyValue, ArrayValue, KeyValueList, and KeyValue to prevent stack overflow from maliciously crafted deeply nested payloads. (#15301)

• pkg/service: Skip graph nodes that have not been built during shutdown to prevent a panic when a partial receiver reload fails to build a receiver. (#16261)

v1.70.0/v0.164.0

💡 Enhancements 💡

• cmd/mdatagen: Add support for supported_platforms in component metadata, allowing generated component tests to target explicitly supported platforms (#13319)

🧰 Bug fixes 🧰

• cmd/mdatagen: Fix the generated dataPointKey function triggering gosec G115 (uint64 to int64 conversion) in components that use mdatagen. (#16176) The generated hash values are unchanged.

• exporter/otlp_http: Report the URL the request was actually sent to in HTTP status error messages when a middleware rewrites the request URL. (#14673) Middleware RoundTrippers that clone the request before rewriting its URL left the configured placeholder URL in 4xx/5xx error messages. The exporter now reads the destination from the response instead.

• pkg/otelcol: Redact non-empty literal defaults in unexpanded env provider references such as ${env:NAME:-literal} in the raw config reported by the OpAMP extension when reports_raw_config is enabled (#16141) Empty defaults such as ${env:NAME:-} stay visible. Other provider schemes are unchanged.

v1.69.0/v0.163.0

💡 Enhancements 💡

• cmd/builder: Add dist.resource.detection.detectors to the builder config, letting distributions opt into a smaller set of resourcedetectionprocessor detectors via generated go build tags. (#16075)
• cmd/mdatagen: Generate exporter queue/batch sender defaults from an opt-in sending_queue field in metadata.yaml. See the batching migration RFC. (#15963) Declaring sending_queue is opt-in; an exporter that omits it is unaffected until it explicitly opts in one at a time during Phase 2 of the migration. Set MDATAGEN_SENDING_QUEUE_OPT_OUT=true to generate the standard default for every undeclared exporter while auditing a whole repository.
• pkg/pprofile: Implement Profiles development-version metadata in the OTLP receiver and exporters. (#16147, #16009) The receiver rejects malformed, repeated, or unsupported versions before decoding. OTLP exporters send the version associated with their compiled-in Profiles schema. The version is not configurable, and existing clients without metadata identify the initial development version.

🧰 Bug fixes 🧰

• cmd/mdatagen: Replace the O(n) scan in generated recordDataPoint with an O(1) hash lookup, fixing an O(n²) cost per scrape when many data points land on one resource. (#15912)

• cmd/mdatagen: When both migration gates are enabled, only the latest metric with its v1 attributes is emitted (legacy attributes are no longer included). (#15979)

• pkg/exporterhelper: Fix sending queue deadlocks when blocked offers are cancelled with block_on_overflow enabled. (#15700)

• pkg/exporterhelper: Drop only the oversized profile when splitting a profiles batch, instead of discarding every profile queued behind it (#16087) Same fix as

• pkg/exporterhelper: Drop only the oversized span when splitting a traces batch, instead of discarding every span queued behind it (#16087) Same fix as

• pkg/pprofile: Use the profiles dictionary for resource and scope attribute strings sent over OTLP/gRPC. (#15861) The OTLP/gRPC profiles client now interns attribute strings before transmission, matching the OTLP/HTTP path. The server resolves the references before exposing pdata to consumers.

• pkg/xpdata: Fix xhash producing the same hash for different maps by length-prefixing keys, strings and bytes. (#16048) All hash values produced by xhash change.

v1.68.0/v0.162.0

🛑 Breaking changes 🛑

• cmd/mdatagen: Generated processor lifecycle tests now assert that the processor propagates the incoming context unchanged to the next consumer by default. (#15994) Disable with skip_context_propagation: true

• processor/queue_batch: Rename queuebatch processor to queue_batch processor. (#14396)

💡 Enhancements 💡

• extension/memory_limiter: Add otelcol_memorylimiter_refused_requests metric to record network request refusals in extension mode. (#15561)

• pkg/confighttp: Enable keepalive configuration by default. (#16026) Introduces the feature gate pkg.confighttp.PrioritizeNewKeepalive. When disabled, this flag restores the old behaviour of removing the keepalive configuration in favour of the deprecated fields IdleConnTimeout, MaxIdleConns, MaxIdleConnsPerHost, DisableKeepAlives when the flag is disabled.

• pkg/exporterhelper: Make the partition idle timeout configurable via batch::partition::idle_timeout and raise the default to 90s. (#15894)

• pkg/exporterhelper: Make the multi-batcher partition LRU cache size configurable and export cache size metrics. (#14526) Adds sending_queue::batch::partition::cache_size (default 10000) to cap the number of active partition batchers. The value must be positive. Current size and configured capacity are exported as otelcol_exporter_queue_batch_partition_cache_size and otelcol_exporter_queue_batch_partition_cache_capacity.

• pkg/pprofile: Speed up profiles dictionary merging during exporter-queue batching by replacing the linear-scan dedup in switchDictionary with an indexed lookup, reducing per-merge cost from O(N*L^2) to O(N+L). (#15544) No behavior change: merged dictionary contents and remapped indices are identical to before.

• pkg/receiverhelper: Stop allocating a span link that is always discarded when a long-lived-context receiver starts an operation without a parent span context. (#15998) Receivers created with LongLivedCtx: true no longer build a trace.Link when the long-lived context carries no valid span context. The SDK already discarded such a link, so behaviour is unchanged. This removes 3 of 7 allocations per receive operation.

• pkg/xpdata: Reduce the time xhash.MapHash takes for maps with many entries. (#15990)

🧰 Bug fixes 🧰

• exporter/debug: Support known sync error handling on AIX (#15924) Enable the debug exporter to handle known synchronous errors on AIX.

• pkg/exporterhelper: Drop only the oversized item when splitting a batch, instead of discarding every item queued behind it (#15936) Applied to logs only for now

• pkg/exporterhelper: Add exporter and data_type attributes to exporter/enqueue spans. (#16022)

• receiver/otlp: Error handler preserves the HTTP status code when the request Content-Type is not one a Status can be encoded in (#15995) Extends the fix in #13414, which handled a missing Content-Type. A Content-Type that was present but unsupported, or malformed, still fell through to 500 {"code": 13, "message": "failed to marshal error message"}, reporting client errors such as 401 from a server auth extension or 400 from an unsupported Content-Encoding as server faults.

v1.67.0/v0.161.0

🛑 Breaking changes 🛑

• pkg/pprofile: Remove deprecated AggregationTemporality, Duration, SetDuration (#15855)
• pkg/scraperhelper/controller: Remove deprecated AddScraper func (#15934)
• pkg/service: Remove deprecated ZapOptions (#15935)
• pkg/xconfmap: Remove deprecated WithForceUnmarshaler func (#15932)

💡 Enhancements 💡

• pkg/pdata: avoid allocations in WriteInt64 and WriteUint64 (#15629)

🧰 Bug fixes 🧰

• cmd/schemagen: Accept components written without a configuration body in the generated Collector configuration schema (#15728)

• pkg/confmap: Fix bug where an escaped URI appearing before a valid URI prevented the subsequent URI from being expanded. (#15867) URI scanning now continues after an escaped URI while preserving the escaped expression as literal text.

• pkg/featuregate: Reject feature gate IDs with an empty dot-separated segment (leading, trailing, or consecutive dots), e.g. .foo, foo., foo..bar. (#15676)

• pkg/pprofile: Stop erasing inline attribute keys when key_strindex is unset, and clear key_strindex once it is resolved. (#15793)

• pkg/pprofile: Reference resource and scope attribute strings via the ProfilesDictionary string table when marshaling and unmarshaling OTLP profiles export requests. (#15792)

• pkg/scraperhelper: Fix shutdown being delayed by extra scrapes when a scrape runs longer than the collection interval (#15736) If a scrape was still running when the next tick fired, the pending tick and the shutdown signal could both be ready when it finished and the controller chose between them at random.

v1.66.0/v0.160.0

🚩 Deprecations 🚩

• pkg/confighttp: Deprecate flat keepalive fields in client and server config in favor of the new keepalive section. (#14020) The following client configuration fields are deprecated in favor of the keepalive section:
  • idle_conn_timeout -> keepalive::idle_conn_timeout
  • max_idle_conns -> keepalive::max_idle_conns
  • max_idle_conns_per_host -> keepalive::max_idle_conns_per_host
  • disable_keep_alives: true -> keepalive::enabled: false The following server configuration fields are deprecated in favor of the keepalive section:
  • idle_timeout -> keepalive::idle_timeout
  • keep_alives_enabled: false -> keepalive::enabled: false Deprecated fields set in the configuration keep working exactly as before and produce a deprecation warning when the client or server is created. Setting deprecated fields together with the new keepalive section is an error. Code migrating off the deprecated fields can use the new NewDefaultKeepaliveClientConfig and NewDefaultKeepaliveServerConfig functions to build a keepalive section with the default values.

💡 Enhancements 💡

• all: Bump go version in all go.mod to 1.26.0, drop support on 1.25.0 (#15799)

• all: Declare windows/amd64 tier 1 and windows/arm64 tier 2 support (#15786)

• pkg/confmap: Remove dead isStringyStructure helper (unused since (#12793) This is an internal, unexported code path with no user-facing behavior change.

• pkg/exporterhelper: Cache the request size per sizer type so byte-sized batching no longer recomputes the serialized proto size of the whole accumulated batch on every consumed request. (#12636) With sizer: bytes, the batcher's MinSize check called BytesSize(), which ignored the cached size and re-walked the entire batch's protobuf on every consumed request, making accumulation O(n^2) in the number of merged requests. The size is now cached separately for the bytes and items dimensions and maintained incrementally during merge/split, so the check is O(1). A single untyped cache could not be reused safely because the batcher and the queue may ask for different sizer types on the same request.

• processor/memory_limiter: Only report memory limiter component health status when the health state changes. (#15751)

🧰 Bug fixes 🧰

• cmd/mdatagen: Allow underscores in feature gate IDs for compatibility with component names with underscores (#15592)

• pkg/pprofile: add bounds checks to FromLocationIndices and switchDictionary (#15697) FromLocationIndices now returns an error instead of panicking on an out-of-range or negative location index, mirroring FromAttributeIndices. The index checks used when merging profiles now also reject negative indices. These were previously reachable with a negative index decoded from an OTLP payload, which panicked the collector via Profiles.MergeTo.

• pkg/service: Route OpenTelemetry SDK-internal errors (e.g. failed metric/log/trace exports) through the collector's configured logger instead of the OTel SDK's default global error handler, which always printed to stderr via log.Print regardless of the configured log encoding. (#12378)

v1.65.0/v0.159.0

💡 Enhancements 💡

• pkg/exporterhelper: Add the pkg.exporterhelper.queueBatchEnabled feature gate (#14038, #13582, #12022) When enabled, the batch settings returned by NewDefaultQueueConfig() have batch::enabled true. See migration RFC.

🧰 Bug fixes 🧰

• pkg/exporterhelper: Record otelcol_exporter_queue_batch_send_size and otelcol_exporter_queue_batch_send_size_bytes after batching, and add otelcol_exporter_enqueue_size and otelcol_exporter_enqueue_size_bytes for enqueue-time sizes. (#14674) Previously the batch send size histograms were recorded at enqueue time (Offer), so they measured incoming request sizes rather than the post-batching request handed to the downstream sender. Those histograms are now recorded in the obs report sender. The previous enqueue-time measurements are preserved under the new otelcol_exporter_enqueue_size and otelcol_exporter_enqueue_size_bytes metrics for queue sizing. Users with the exporter batcher enabled will observe different values for otelcol_exporter_queue_batch_send_size*. otelcol_exporter_queue_batch_send_size and otelcol_exporter_queue_batch_send_size_bytes are now only recorded when sending_queue::batch is configured; they will not appear at all for exporters that do not enable batching.

• pkg/scraperhelper: Use {record} instead of {datapoint} as the unit of the log record and profile record scraper metrics (#15730) Affects otelcol_scraper_scraped_log_records, otelcol_scraper_errored_log_records, otelcol_scraper_scraped_profile_records and otelcol_scraper_errored_profile_records.

v1.64.0/v0.158.0

🚀 New components 🚀

• processor/queuebatch: New queuebatchprocessor to replace the legacy batchprocessor. (#15047, #13582, #12022, #11308, #8272, #6046) New implementation is based exporterhelper, uses same configuration as sending_queue.

💡 Enhancements 💡

• cmd/mdatagen: Add first-class extended type aliases (int64, duration, opaque_string, id, opaque_map, etc.) to config schemas in metadata.yaml (#15513) Authors can now write type: int64, type: duration, type: opaque_string, type: id, or type: opaque_map directly as a property type in the config: section of metadata.yaml. Each alias expands to the correct JSON Schema representation and Go type automatically. Existing uses of standard JSON Schema types, format:, and x-customType: remain supported without migration.

• extension/memory_limiter: Promote the memory limiter extension to beta stability. (#14533)

🧰 Bug fixes 🧰

• cmd/mdatagen: Removes the extra line in the documentation.md around description (#15664)

• cmd/mdatagen: Auto-enable v1 metrics when legacy metric is enabled and v1 feature gate is on (#15650) When the v1 feature gate is enabled and a legacy metric is enabled, the corresponding v1 metric is now programmatically enabled so users don't need to add the v1 metric to their config.

• cmd/mdatagen: Fix incorrect collision warning for versioned metrics with different emitted names (#15648) Same name collision detection (type/attribute checks) was being used for versioned metrics with different names. This caused the legacy metric to be disabled which was incorrect and also a warning msg was being incorrectly logged that stated the metrics had the same name when in fact they had different names.

• cmd/mdatagen: Versioned metrics don't handle renamed attributes with same type (#15595) Versioned metrics need to support emitting legacy and latest attributes when the metric name is the same but the attributes names differ. This was not working when the attributes name changed but the type remained the same. Here we add support to versioned metrics with renamed attributes where those attributes have the same type.

• exporter/debug: Fix profile sample attribute formatting for non-string values (#15647) Previously, non-string values produced malformed output such as %!s(int64=42). Profile sample attributes now use the debug exporter's typed attribute format, such as Int(42). This will also change strings from hello-world to Str(hello-world).

• pkg/config/configtls: Fix goroutine and file descriptor leak when client_ca_file_reload is enabled (#9221) Every call to ServerConfig.LoadTLSConfig with client_ca_file_reload enabled started a file watcher goroutine that could never be stopped, since the reloader was not reachable from the returned *tls.Config. The client CA file is now checked for changes while TLS handshakes are served, at most once per second, matching how reload_interval already reloads the server certificate. No background goroutine is started, so nothing is left behind when a server is torn down and recreated.

v1.63.0/v0.157.0

🛑 Breaking changes 🛑

• pkg/exporterhelper: Replace histogram bucket boundaries for otelcol_exporter_queue_batch_send_size_bytes and otelcol_processor_batch_batch_send_size_bytes with a power-of-2 byte-scale set spanning 128 B to 16 MiB. (#15535) The previous boundaries included many small sub-kilobyte buckets that were not useful for byte-scale payloads, and otelcol_exporter_queue_batch_send_size_bytes topped out at 6000 bytes so nearly all observations fell into the +Inf overflow bucket. The new boundaries are powers of two from 128 B to 16777216 (16 MiB), giving a meaningful distribution for real batch payload sizes (including small timeout-flushed batches) and keeping the two metrics directly comparable on the same dashboards. Dashboards or alerts that hard-code specific le values for these histograms will need to be updated.

• processor/batch: Replace histogram bucket boundaries for otelcol_processor_batch_batch_send_size_bytes with a power-of-2 byte-scale set spanning 128 B to 16 MiB. (#15535) The previous boundaries included many small sub-kilobyte buckets that were not useful for byte-scale payloads. The new boundaries are powers of two from 128 B to 16777216 (16 MiB), giving a meaningful distribution for real batch payload sizes (including small timeout-flushed batches) and keeping the metric directly comparable with otelcol_exporter_queue_batch_send_size_bytes on the same dashboards. Dashboards or alerts that hard-code specific le values for this histogram will need to be updated.

💡 Enhancements 💡

• all: Bootstrap config.schema.yaml for core components (debug/otlp/otlphttp exporters, otlp receiver, batch/memory_limiter processors, memory_limiter/zpages extensions). Implements Phase 1 of the component configuration schema roadmap RFC. (#14543) Schemas are generated using the schemagen tool from opentelemetry-collector-contrib and hand-tuned to capture validation rules and references to shared library schemas (confighttp, configgrpc, configretry, exporterhelper, etc.). A .schemagen.yaml settings file and a generate-schemas Makefile target are added so the schemas can be regenerated reproducibly.

• pkg/service: Apply experimental service::telemetry::resource::detection/development resource detection to the Collector's internal telemetry resource. (#14311) This follows the OpenTelemetry configuration schema by treating service::telemetry::resource::detection/development::detectors as detector selection. Currently supported detector entries are container, host, process, and service. See the OpenTelemetry Configuration Go support table and search for ExperimentalResourceDetector for current detector support: https://github.com/open-telemetry/opentelemetry-configuration/blob/main/language-support-status.md#go

  Example:

  yaml

  1	service:
  2	telemetry:
  3	resource:
  4	attributes:
  5	- name: foo
  6	value: bar
  7	detection/development:
  8	detectors:
  9	- host: {}

• pkg/service: Add service.partialReload feature gate (Alpha) and service.partialReloadReceivers feature gate (Beta) that together restart only receivers on config reload when non-receiver config sections are unchanged, avoiding unnecessary disruption to processors, exporters, and extensions. Enable with --feature-gates=service.partialReload. (#5966)

🧰 Bug fixes 🧰

• exporter/debug: Fix the scope index printed by the normal verbosity marshaler; each scope was labelled with its parent resource's index instead of its own position (#15541) Affected all four signals (logs, traces, metrics, profiles) — e.g. the second scope under a resource printed #0 instead of #1.

• pkg/config/configgrpc: Fix WaitForReady option not being applied to gRPC client connections. (#15615)

• pkg/featuregate: Fix panic when a --feature-gates value contains an empty comma-separated element (e.g. --feature-gates=alpha,) (#15536) An empty identifier now produces a returned error instead of an index-out-of-range panic during flag parsing.

• pkg/service: Fix collector startup panic when a resource detector emits a slice-valued attribute (e.g. the process detector's process.command_args) (#15571) createResource passed the OTel SDK attribute value straight into pcommon.Value.FromRaw, which only accepts []any for slices, so any string, int, float, or bool slice resource attribute produced an <Invalid value type> error and aborted service.New. Slice-typed attributes are now converted element-wise.

• pkg/service: Record status events reported by extensions (#15557)

v1.62.0/v0.156.0

💡 Enhancements 💡

• cmd/mdatagen: Add support for defining stability levels for resource attributes (#15312)
• cmd/mdatagen: Add semantic convention reference to resource attributes (#15313)
• processor/memory_limiter: Adding health events for the memorylimiter (#14700) Publish health event from memorylimiter using componentstatus.ReportStatus

🧰 Bug fixes 🧰

• cmd/mdatagen: Removes the extra line in the documentation.md between extended description and table (#15458)

• exporter/otlp_http: Treat errors parsing successful (2xx) HTTP response bodies as permanent errors to prevent retrying already-accepted data. (#15386) When a server returns a 2xx status but the response body exceeds the 64kB read limit, the body is truncated and proto unmarshaling fails. Previously this was treated as a retryable error, causing duplicate data to be exported. Now it is marked as a permanent error so the retry logic will not re-send data that was already accepted by the server.

• pkg/config/configretry: Always validate BackOffConfig fields regardless of the Enabled flag. (#15437)

• pkg/service: Ensure receivers always start after all other components (#15495) There was previously a race condition where multiple receivers using a shared internal implementation, such as the OTLP receiver, could start sending telemetry into a pipeline before all its components had fully started.

• processor/memory_limiter: Fix degenerate collector performance when exporter has problems causing permanent CPU-burning GC loop (#4981) Forced GC runs now use exponential backoff when deemed ineffective (still above soft limit and less than 5% reclaimed) to avoid preventing recovery by overloading CPU with excessive GC runs. The cap on the backoff interval is exposed via max_gc_interval_when_soft_limited and max_gc_interval_when_hard_limited (both default 30s); set either to 0 to disable backoff on that path.

• provider/env: Fix empty env var default resolving to nil instead of empty string (#14587) When using ${env:VAR:-} with an unset variable, the empty default now correctly resolves to an empty string instead of nil.

v1.61.0/v0.155.0

🛑 Breaking changes 🛑

• pkg/confighttp: Remove stabilized gate confighttp.framedSnappy (#15420)
• pkg/configoptional: Remove stabilized gate configoptional.AddEnabledField. (#15421)
• pkg/confmap: Remove stabilized featuregate confmap.newExpandedValueSanitizer (#15418)
• pkg/exporterhelper: Remove stable gate exporter.PersistRequestContext. (#15424)
• pkg/otelcol: Remove stable gate otelcol.printInitialConfig (#15425)
• pkg/service: Remove stable featuregate telemetry.UseLocalHostAsDefaultMetricsAddress (#15419)
• pkg/xpdata: Remove stable gate pdata.enableRefCounting. (#15426)
• processor/memory_limiter: Rename deprecated memory limiter metrics to include the memory_limiter prefix (e.g. otelcol_processor_memory_limiter_*) to clarify they are specific to this processor. (#11203)

🚀 New components 🚀

• cmd/schemagen: Move the schemagen CLI from opentelemetry-collector-contrib to this repository as cmd/schemagen. (#14543) The tool's source is identical to the upstream contrib version (github.com/open-telemetry/opentelemetry-collector-contrib/cmd/schemagen) except for the module path and the test fixtures' namespace, which now reflect the collector module (go.opentelemetry.io/collector/cmd/schemagen). A contrib-only integration test that pointed at three contrib components is removed; contrib's existing make generate-schemas + git-diff CI continues to exercise the FactoryMaps feature against real-world components.

💡 Enhancements 💡

• cmd/mdatagen: Add support for versioned metrics (#15309) Allows metadata to specify versioned metrics for migrating to new semantic conventions. There are two scenarios catered for when the metric name stays the same during migration. When a metric name stays the same but its type differs, just the latest metric is emitted with the new type. When a metric name stays the same but its attributes differ, the latest version is emitted with combined attributes during the migration period.

• cmd/schemagen: Add overlayFile support to deep-merge hand-curated schema fragments into generated schemas. (#14543) Components can declare an overlayFile in .schemagen.yaml pointing to a YAML file whose keys are recursively merged into the auto-generated schema after generation. This allows injecting descriptions, constraints, or additional properties that cannot be derived from Go types. Originally added to the contrib copy of cmd/schemagen in open-telemetry/opentelemetry-collector-contrib#48917 and brought over with the tool in this move.

• cmd/schemagen: Add -p flag to specify a custom Go package pattern for the config struct. (#14543) The new -p flag lets callers override the default . package pattern with an arbitrary Go package selector (e.g. a sub-package whose Config type schemagen should walk). Originally added to the contrib copy of cmd/schemagen in open-telemetry/opentelemetry-collector-contrib#48966 and brought over with the tool in this move.

🧰 Bug fixes 🧰

• cmd/mdatagen: Fix an issue when the last feature gate is removed, stale files are left. (#15423)
• cmd/mdatagen: Fix known acronyms at the end of generated Go identifiers to be all-caps, same as in any other position (#15438)
• cmd/schemagen: Fix mode detection when using -p to target a package outside the current directory. (#15453) A new -m component|package flag is available as a manual override when auto-detection is not possible.

v1.60.0/v0.154.0

🛑 Breaking changes 🛑

• cmd/builder: The --skip-get-modules flag will no longer regenerate your go.mod file. (#15390) This is mostly a bug fix, as it led to adverse behaviour that was unintended in the described flow in the README. Now when you run --skip-get-modules, your go.mod file will truly be untouched by ocb as the info log claims.

💡 Enhancements 💡

• pkg/config/configtls: Add include_insecure_cipher_suites to configtls to enable insecure cipher suites. Insecure cipher suites are disabled by default for security. (#13829)
• pkg/confighttp: Add ExposedHeaders field to CORSConfig to allow setting the Access-Control-Expose-Headers response header. (#15119)

🧰 Bug fixes 🧰

• cmd/mdatagen: Removes the extra line in the README.md between status and description (#15306)
• pkg/exporterhelper: Fix nil-pointer panic in sending_queue::batch Unmarshal when sending_queue::sizer is set and sending_queue::batch::enabled is false. (#14687) When sending_queue::sizer was set and sending_queue::batch::enabled: false cleared the batch Optional to None, the sizer-inheritance branch in queuebatch.Config.Unmarshal dereferenced a nil Optional and crashed the collector at startup. The branch now also requires Batch.HasValue().

v1.59.0/v0.153.0

🛑 Breaking changes 🛑

• pkg/configoptional: Stabilize feature gate configoptional.AddEnabledField (#15333)
• pkg/confmap: Stabilize confmap.newExpandedValueSanitizer feature gate (#15339)
• pkg/exporterhelper: mark exporter.PersistRequestContext as stable (#15330)
• pkg/otelcol: Stabilize otelcol.printInitialConfig gate (#15340)
• pkg/pdata: Remove pdata.useCustomProtoEncoding feature gate (#15332)
• pkg/service: Stabilize telemetry.UseLocalHostAsDefaultMetricsAddress gate (#15342)
• pkg/xpdata: Stabilize pdata.enableRefCounting feature gate (#15331)

🧰 Bug fixes 🧰

• pkg/config/configgrpc: Fix memory corruption and fatal error in Snappy (#15237, #15320)

v1.58.0/v0.152.0

💡 Enhancements 💡

• pkg/exporterhelper: Add otelcol_exporter_in_flight_requests metric to track the number of export requests currently in-flight per exporter. (#15009) This UpDownCounter increments in startOp and decrements in endOp, allowing operators to monitor concurrent export activity and detect when an exporter is saturating its worker pool.

🧰 Bug fixes 🧰

• pkg/confighttp: Close the original request body after reading block-format Content-Encoding: snappy requests. (#15262)

• pkg/confighttp: Recover from panics in decompression libraries, return HTTP 400 instead of 500. (#13228)

• pkg/confighttp: Enforce max_request_body_size on Content-Encoding: snappy requests before the decoded buffer is allocated. (#15252)

• pkg/otelcol: Stop emitting verbose gRPC transport messages at WARN during normal client disconnect. (#5169) grpc-go gates chatty per-RPC notices (e.g. "HandleStreams failed to read frame: connection reset by peer") behind LoggerV2.V(2). zapgrpc.Logger.V conflates grpclog verbosity with zap severity, so V(2) returns true whenever WARN is enabled and these messages emit at WARN. Wrap the installed grpclog.LoggerV2 with a corrected V() that compares against a fixed verbosity threshold, matching grpclog's intended semantics. See uber-go/zap#1544.

• pkg/pdata: pcommon.Value.AsString no longer HTML-escapes <, >, and & inside ValueTypeMap and ValueTypeSlice values, matching the behavior already used for ValueTypeStr. (#14662)

• pkg/service: Fix Prometheus config defaults mismatch when host is explicitly set in telemetry configuration. (#13867) When users explicitly configured the telemetry metrics section (e.g. to change the host), the Prometheus exporter boolean fields (WithoutScopeInfo, WithoutUnits, WithoutTypeSuffix) defaulted to nil/false instead of true, causing metric name format changes compared to the implicit default configuration. This fix applies the correct defaults during config unmarshaling.

• pkg/service: Return noop tracer provider when no trace processors are defined (#15135)

v1.57.0/v0.151.0

🛑 Breaking changes 🛑

• cmd/builder: In the generated Collector source, the replace statements in the Go module will now use relative paths by default. (#15097) We expect that this will not break existing use-cases where the generated collector is only used in an interim manner for builds. It enables the possibility of tracking the generated Collector code as a longer living artifact, allowing it to be run on any machine (whereas absolute paths will be different depending on the machine the Collector source is generated on.) We have added dist::use_absolute_replace_paths to go back to the absolute path behaviour in the case where there is an unforeseen use-case that requires absolute paths.

• pkg/confighttp: Stabilize framedSnappy feature gate. (#15096)

💡 Enhancements 💡

• all: Add declarative schema support for service telemetry resource configuration. (#14411) The service::telemetry::resource configuration now accepts the declarative schema with explicit name/value pairs:

  yaml

  1	service:
  2	telemetry:
  3	resource:
  4	schema_url: https://opentelemetry.io/schemas/1.38.0
  5	attributes:
  6	- name: service.name
  7	value: my-collector
  8	- name: host.name
  9	value: collector-host

  The legacy inline attribute map format is still supported for backward compatibility:

  yaml

  1	service:
  2	telemetry:
  3	resource:
  4	service.name: my-collector
  5	host.name: collector-host

  Note: resource.detectors is accepted for forward compatibility but is not yet applied by the collector.

• exporter/otlp_grpc: Added the server.address and url.path attributes to metrics generated by the otlp exporter. (#14998)

• exporter/otlp_http: Added the server.address and url.path attributes to metrics generated by the otlp_http exporter. (#14998)

• pkg/config/configgrpc: Add UserAgent field to ClientConfig to allow overriding the default gRPC user-agent string. (#14686) The otlp gRPC exporter was unconditionally setting the User-Agent via grpc.WithUserAgent() at dial time, which takes precedence over per-call metadata, causing any user-configured User-Agent to be silently discarded. A dedicated UserAgent field has been added to ClientConfig which, when set, is used in the dial option directly instead of the default BuildInfo-derived string.

• pkg/config/configgrpc: Accept gRPC resolver scheme URIs in client endpoint (e.g. passthrough:///host:port) to allow control over name resolution (#14990) After the migration to grpc.NewClient, some gRPC client components such as the OTLP exporter experienced connection issues in dual-stack DNS environments. This can now be fixed by using the passthrough:/// gRPC resolver scheme in the endpoint field.

• pkg/config/confignet: Add support for Windows Named Pipe (npipe) transport (#15085)

• pkg/service: Emit a warning when using the old v0.2.0 declarative config format (#15088)

🧰 Bug fixes 🧰

• pkg/otelcol: Print components exactly once in the otelcol components command (#14682) This resolves an issue where aliased components were skipped.

• pkg/otelcol: Synchronize Collector Run and Shutdown lifecycles so that Shutdown blocks until Run completes all cleanup. (#4947) Shutdown now blocks until Run finishes cleanup, matching http.Server semantics. If Shutdown is called before Run, the next Run call returns nil after cleaning up the config provider.

• pkg/pdata: Use spec-compliant string representation for NaN, Infinity, and -Infinity in Value.AsString(). (#14487)

• pkg/pprofile: Fix data corruption of resource and scope attributes after marshal-unmarshal-merge round-trip. (#15084)

• pkg/service: Non-string resource attributes in telemetry configuration now return an error instead of panicking (#15171)

• pkg/xscraperhelper: fix the merge of profiles in the profiling scraper helpers (#14790)

• receiver/otlp: Fix profiles receiver reporting its samples as spans (#15089)

v1.56.0/v0.150.0

💡 Enhancements 💡

• all: Update semconv package from 1.38.0 to 1.40.0 (#15095)
• cmd/mdatagen: Only allow the ToVersion feature flag attribute to be set for the Stable and Deprecated stages. (#15040) To better match the feature flag README (https://github.com/open-telemetry/opentelemetry-collector/blob/main/featuregate/README.md#feature-lifecycle).

🧰 Bug fixes 🧰

• exporter/debug: Guard from out of bounds profiles dictionary indices (#14803)

• pdata/pprofile: create a copy when the input is marked as read-only (#15080)

• pkg/otelcol: Fix missing default values in unredacted print-config command by introducing confmap.WithUnredacted MarshalOption. (#14750) Resolves an issue where the unredacted mode output omitted all default-valued options. By introducing a new MarshalOption to disable redaction directly at the confmap encoding level, the unredacted mode now preserves all component defaults natively without requiring post-processing.

• pkg/service: Headers on the internal telemetry OTLP exporter are now redacted when the configuration is marshaled (#14756)

v1.55.0/v0.149.0

🛑 Breaking changes 🛑

• pkg/service: Remove service_name, service_instance_id, and service_version as constant labels on every internal metric datapoint. These attributes are already present in target_info and were being duplicated on each series for OpenCensus backwards compatibility. (#14811) Previously, the collector stamped every internal metric series (e.g. otelcol_process_runtime_heap_alloc_bytes) with service_name, service_instance_id, and service_version labels to match the old OpenCensus behavior. These attributes are now only present in the target_info metric, which is the correct Prometheus/OTel convention. Users who filter or group by these labels on individual metrics will need to update their queries to use target_info joins instead.

💡 Enhancements 💡

• all: Move aix/ppc64 to tier 3 support (#13380)

• all: Upgrade the profiles stability status to alpha (#14817) The following components have their profiles status upgraded from development to alpha:

  • pdata/pprofile
  • connector/forward
  • exporter/debug
  • receiver/nop
  • exporter/nop
  • exporter/otlp_grpc
  • exporter/otlp_http

• cmd/mdatagen: Add semconv reference for attributes (#13297)

🧰 Bug fixes 🧰

• cmd/mdatagen: Fix entity code generation so extra_attributes are emitted as resource attributes instead of entity descriptive attributes. (#14778)

v1.54.0/v0.148.0

❗ Known Issues ❗

• service: The collector's internal Prometheus metrics endpoint (:8888) now emits OTel service labels with underscore names (service_name, service_instance_id, service_version) instead of dot-notation names (service.name, service.instance.id, service.version). Users scraping this endpoint with the Prometheus receiver will see these renamed labels in resource and datapoint attributes. As a workaround, add the following metric_relabel_configs to your scrape config in prometheus receiver:
  yaml

  1	metric_relabel_configs:
  2	- source_labels: [service_name]
  3	target_label: service.name
  4	- source_labels: [service_instance_id]
  5	target_label: service.instance.id
  6	- source_labels: [service_version]
  7	target_label: service.version
  8	- regex: service_name|service_instance_id|service_version
  9	action: labeldrop

  See https://github.com/open-telemetry/opentelemetry-collector/issues/14814 for details and updates.

🛑 Breaking changes 🛑

• all: Change metric units to be singular to match OTel specification, e.g. {requests} -> {request} (#14753)

💡 Enhancements 💡

• cmd/mdatagen: Add deprecated_type field to allow specifying an alias for component types. (#14718)
• cmd/mdatagen: Generate entity-scoped MetricsBuilder API that enforces entity-metric associations at compile time (#14659)
• cmd/mdatagen: Skip generating reaggregation config options for metrics that have no aggregatable attributes. (#14689)
• pkg/service: The internal status reporter no longer drops repeated Ok and RecoverableError statuses (#14282) Status events can now carry metadata and there's value in allowing them to be emitted despite the status value itself not changing.

🧰 Bug fixes 🧰

• cmd/builder: Add .exe to output binary names when building for Windows targets. (#12591)

• exporter/debug: Add printing of metric metadata in detailed verbosity. (#14667)

• exporter/otlp_grpc: Prevent nil pointer panic when push methods are called before the OTLP exporter initializes its gRPC clients. (#14663) When the sending queue and retry are disabled, calling ConsumeTraces, ConsumeMetrics, ConsumeLogs, or ConsumeProfiles before the OTLP exporter initializes its gRPC clients could cause a nil pointer dereference panic. The push methods now return an error instead of panicking.

• exporter/otlp_http: Show the actual destination URL in error messages when request URL is modified by middleware. (#14673) Unwraps the *url.Error returned by http.Client.Do() to prevent misleading error logs when a middleware extension dynamically updates the endpoint.

• pdata/pprofile: Switch the dictionary of dictionary tables entries only once when merging profiles (#14709) For dictionary table data, we used to switch their dictionaries when doing the switch for the data that uses them. However, when an entry is associated with multiple other data (several samples can use the same stack), we would have been switching the dictionaries of the entry multiple times.

  We now switch dictionaries for dictionary table data only once, before switching the resource profiles.

v1.53.0/v0.147.0

💡 Enhancements 💡

• exporter/debug: Output bucket counts for exponential histogram data points in normal verbosity. (#10463)
• pkg/exporterhelper: Add metadata_keys configuration to sending_queue.batch.partition to partition batches by client metadata (#14139) The metadata_keys configuration option is now available in the sending_queue.batch.partition section for all exporters. When specified, batches are partitioned based on the values of the listed metadata keys, allowing separate batching per metadata partition. This feature is automatically configured when using exporterhelper.WithQueue().

🧰 Bug fixes 🧰

• cmd/builder: Fix duplicate error output when CLI command execution fails in the builder tool. (#14436)

• cmd/mdatagen: Fix duplicate error output when CLI command execution fails in the mdatagen tool. (#14436)

• cmd/mdatagen: Fix semconv URL validation for metrics with underscores in their names (#14583) Metrics like system.disk.io_time now correctly validate against semantic convention URLs containing underscores in the anchor tag.

• extension/memory_limiter: Use ChainUnaryInterceptor instead of UnaryInterceptor to allow multiple interceptors. (#14634) If multiple extensions that use the UnaryInterceptor are set the binary panics at start time.

• extension/memory_limiter: Add support for streaming services. (#14634)

• pkg/config/configmiddleware: Add context.Context to HTTP middleware interface constructors. (#14523) This is a breaking API change for components that implement or use extensionmiddleware.

• pkg/confmap: Fix another issue where configs could fail to decode when using interpolated values in string fields. (#14034) For example, a resource attribute can be set via an environment variable to a string that is parseable as a number, e.g. 1234.

  (A similar bug was fixed in a previous release: that one was triggered when the field was nested in a struct, whereas this one is triggered when the field internally has type "pointer to string" rather than "string".)

• pkg/otelcol: The featuregate subcommand now rejects extra positional arguments instead of silently ignoring them. (#14554)

• pkg/queuebatch: Fix data race in partition_batcher where resetTimer() was called outside mutex, causing concurrent timer.Reset() calls and unpredictable batch flush timing under load. (#14491)

• pkg/scraperhelper: Log scrapers now emit log-appropriate receiver telemetry (#14654) Log scrapers previously emitted the same receiver telemetry as metric scrapers, such as the otelcol_receiver_accepted_metric_points metric (instead of otelcol_receiver_accepted_log_records), or spans named receiver/myreceiver/MetricsReceived (instead of receiver/myreceiver/LogsReceived).

  This did not affect scraper-specific spans and metrics.

• processor/batch: Fixes a bug where the batch processor would not copy SchemaUrl metadata from resource and scope containers during partial batch splits. (#12279, #14620)

v1.52.0/v0.146.1

v0.146.0

🛑 Breaking changes 🛑

• all: Increase minimum Go version to 1.25 (#14567)

🚩 Deprecations 🚩

• pdata/pprofile: Declare removed aggregation elements as deprecated. (#14528)

💡 Enhancements 💡

• all: Add detailed failure attributes to exporter send_failed metrics at detailed telemetry level. (#13956) The otelcol_exporter_send_failed_{spans,metric_points,log_records} metrics now include failure attributes when telemetry level is Detailed: error.type (OpenTelemetry semantic convention describing the error class) and error.permanent (indicates if error is permanent/non-retryable). The error.type attribute captures gRPC status codes (e.g., "Unavailable", "ResourceExhausted"), standard Go context errors (e.g., "canceled", "deadline_exceeded"), and collector-specific errors (e.g., "shutdown"). This enables better alerting and debugging by providing standardized error classification.

• cmd/builder: Introduce new experimental init subcommand (#14530) The new init subcommand initializes a new custom collector

• cmd/builder: Add "telemetry" field to allow configuring telemetry providers (#14575) Most users should not need to use this, this field should only be set if you intend to provide your own OpenTelemetry SDK.

• cmd/mdatagen: Introduce additional metadata (the version since the deprecation started, and the deprecation reason) for deprecated metrics. (#14113)

• cmd/mdatagen: Add optional relationships field to entity schema in metadata.yaml (#14284)

• exporter/debug: Add output_paths configuration option to control output destination when use_internal_logger is false. (#10472) When use_internal_logger is set to false, the debug exporter now supports configuring the output destination via the output_paths option. This allows users to send debug exporter output to stdout, stderr, or a file path. The default value is ["stdout"] to maintain backward compatibility.

• pkg/confmap: Add experimental ToStringMapRaw function to decode confmap.Conf into a string map without losing internal types (#14480) This method exposes the internal structure of a confmap.Conf which may change at any time without prior notice

🧰 Bug fixes 🧰

• cmd/mdatagen: Reset aggDataPoints during metric init to avoid index out of range panic across emit cycles when reaggregation is enabled. (#14569)
• cmd/mdatagen: Fix panic when mdatagen is run without arguments. (#14506)
• pdata/pprofile: Fix off-by-one issue in dictionary lookups. (#14534)
• pkg/config/confighttp: Fix high cardinality span name from request method from confighttp server internal telemetry (#14516) Follow spec to bound request method cardinality.
• pkg/otelcol: Ignore component aliases in the otelcol components command (#14492)
• pkg/otelcol: Order providers and converters in alphabetical order in the components subcommand. (#14476)

v1.51.0/v0.145.0

💡 Enhancements 💡

• pkg/scraperhelper: ScraperID has been added to the logs for metrics, logs, and profiles (#14461)

🧰 Bug fixes 🧰

• exporter/otlp_grpc: Fix the OTLP exporter balancer to use round_robin by default, as intended. (#14090)

• pkg/config/configoptional: Fix Unmarshal methods not being called when config is wrapped inside Optional (#14500) This bug notably manifested in the fact that the sending_queue::batch::sizer config for exporters stopped defaulting to sending_queue::sizer, which sometimes caused the wrong units to be used when configuring sending_queue::batch::min_size and max_size.

  As part of the fix, xconfmap exposes a new xconfmap.WithForceUnmarshaler option, to be used in the Unmarshal methods of wrapper types like configoptional.Optional to make sure the Unmarshal method of the inner type is called.

  The default behavior remains that calling conf.Unmarshal on the confmap.Conf passed as argument to an Unmarshal method will skip any top-level Unmarshal methods to avoid infinite recursion in standard use cases.

• pkg/confmap: Fix an issue where configs could fail to decode when using interpolated values in string fields. (#14413) For example, a header can be set via an environment variable to a string that is parseable as a number, e.g. 1234

• pkg/service: Don't error on startup when process metrics are enabled on unsupported OSes (e.g. AIX) (#14307)

v1.50.0/v0.144.0

🛑 Breaking changes 🛑

• pkg/exporterhelper: Change verbosity level for otelcol_exporter_queue_batch_send_size metric to detailed. (#14278)
• pkg/service: Remove deprecated telemetry.disableHighCardinalityMetrics feature gate. (#14373)
• pkg/service: Remove deprecated service.noopTracerProvider feature gate. (#14374)

🚩 Deprecations 🚩

• exporter/otlp_grpc: Rename otlp exporter to otlp_grpc exporter and add deprecated alias otlp. (#14403)
• exporter/otlp_http: Rename otlphttp exporter to otlp_http exporter and add deprecated alias otlphttp. (#14396)

💡 Enhancements 💡

• cmd/builder: Avoid duplicate CLI error logging in generated collector binaries by relying on cobra's error handling. (#14317)

• cmd/mdatagen: Add the ability to disable attributes at the metric level and re-aggregate data points based off of these new dimensions (#10726)

• cmd/mdatagen: Add optional display_name and description fields to metadata.yaml for human-readable component names (#14114) The display_name field allows components to specify a human-readable name in metadata.yaml. When provided, this name is used as the title in generated README files. The description field allows components to include a brief description in generated README files.

• cmd/mdatagen: Validate stability level for entities (#14425)

• pkg/xexporterhelper: Reenable batching for profiles (#14313)

• receiver/nop: add profiles signal support (#14253)

🧰 Bug fixes 🧰

• pkg/exporterhelper: Fix reference count bug in partition batcher (#14444)

v1.49.0/v0.143.0

💡 Enhancements 💡

• all: Update semconv import to 1.38.0 (#14305)
• exporter/nop: Add profiles support to nop exporter (#14331)
• pkg/pdata: Optimize the size and pointer bytes for pdata structs (#14339)
• pkg/pdata: Avoid using interfaces/oneof like style for optional fields (#14333)

v1.48.0/v0.142.0

💡 Enhancements 💡

• exporter/debug: Add logging of dropped attributes, events, and links counts in detailed verbosity (#14202)

• extension/memory_limiter: The memorylimiter extension can be used as an HTTP/GRPC middleware. (#14081)

• pkg/config/configgrpc: Statically validate gRPC endpoint (#10451) This validation was already done in the OTLP exporter. It will now be applied to any gRPC client.

• pkg/service: Add support to disabling adding resource attributes as zap fields in internal logging (#13869) Note that this does not affect logs exported through OTLP.

v1.47.0/v0.141.0

🛑 Breaking changes 🛑

• pkg/config/confighttp: Use configoptional.Optional for confighttp.ClientConfig.Cookies field (#14021)

💡 Enhancements 💡

• pkg/config/confighttp: Setting compression_algorithms to an empty list now disables automatic decompression, ignoring Content-Encoding (#14131)
• pkg/service: Update semantic conventions from internal telemetry to v1.37.0 (#14232)
• pkg/xscraper: Implement xscraper for Profiles. (#13915)

🧰 Bug fixes 🧰

• pkg/config/configoptional: Ensure that configoptional.None values resulting from unmarshaling are equivalent to configoptional.Optional zero value. (#14218)

v1.46.0/v0.140.0

💡 Enhancements 💡

• cmd/mdatagen: metadata.yaml now supports an optional entities section to organize resource attributes into logical entities with identity and description attributes (#14051) When entities are defined, mdatagen generates AssociateWith{EntityType}() methods on ResourceBuilder that associate resources with entity types using the entity refs API. The entities section is backward compatible - existing metadata.yaml files without entities continue to work as before.

• cmd/mdatagen: Add semconv reference for metrics (#13920)

• connector/forward: Add support for Profiles to Profiles (#14092)

• exporter/debug: Disable sending queue by default (#14138) The recently added sending queue configuration in Debug exporter was enabled by default and had a problematic default size of 1. This change disables the sending queue by default. Users can enable and configure the sending queue if needed.

• pkg/config/configoptional: Mark configoptional.AddEnabledField as beta (#14021)

• pkg/otelcol: This feature has been improved and tested; secure-by-default redacts configopaque values (#12369)

🧰 Bug fixes 🧰

• all: Ensure service service.instance.id is the same for all the signals when it is autogenerated. (#14140)

v1.45.0/v0.139.0

🛑 Breaking changes 🛑

• cmd/mdatagen: Make stability.level a required field for metrics (#14070)

• cmd/mdatagen: Replace optional field with requirement_level field for attributes in metadata schema (#13913) The optional boolean field for attributes has been replaced with a requirement_level field that accepts enum values: required, conditionally_required, recommended, or opt_in.

  • required: attribute is always included and cannot be excluded
  • conditionally_required: attribute is included by default when certain conditions are met (replaces optional: true)
  • recommended: attribute is included by default but can be disabled via configuration (replaces optional: false)
  • opt_in: attribute is not included unless explicitly enabled in user config When requirement_level is not specified, it defaults to recommended.

• pdata/pprofile: Remove deprecated PutAttribute helper method (#14082)

• pdata/pprofile: Remove deprecated PutLocation helper method (#14082)

💡 Enhancements 💡

• all: Add FIPS and non-FIPS implementations for allowed TLS curves (#13990)
• cmd/builder: Set CGO_ENABLED=0 by default, add the cgo_enabled configuration to enable it. (#10028)
• pkg/config/configgrpc: Errors of type status.Status returned from an Authenticator extension are being propagated as is to the upstream client. (#14005)
• pkg/config/configoptional: Adds new configoptional.AddEnabledField feature gate that allows users to explicitly disable a configoptional.Optional through a new enabled field. (#14021)
• pkg/exporterhelper: Replace usage of gogo proto for persistent queue metadata (#14079)
• pkg/pdata: Remove usage of gogo proto and generate the structs with pdatagen (#14078)

🧰 Bug fixes 🧰

• exporter/debug: add queue configuration (#14101)

v1.44.0/v0.138.0

🛑 Breaking changes 🛑

• all: Remove deprecated type TracesConfig (#14036)

• pkg/exporterhelper: Add default values for sending_queue::batch configuration. (#13766) Setting sending_queue::batch to an empty value now results in the same setup as the default batch processor configuration.

• all: Add unified print-config command with mode support (redacted, unredacted), json support (unstable), and validation support. (#11775) This replaces the print-initial-config command. See the service package README for more details. The original command name print-initial-config remains an alias, to be retired with the feature flag.

💡 Enhancements 💡

• all: Add keep_alives_enabled option to ServerConfig to control HTTP keep-alives for all components that create an HTTP server. (#13783)
• pkg/otelcol: Avoid unnecessary mutex in collector logs, replace by atomic pointer (#14008)
• cmd/mdatagen: Add lint/ordering validation for metadata.yaml (#13781)
• pdata/xpdata: Refactor JSON marshaling and unmarshaling to use pcommon.Value instead of AnyValue. (#13837)
• pkg/exporterhelper: Expose MergeCtx in exporterhelper's queue batch settings` (#13742)

🧰 Bug fixes 🧰

• all: Fix zstd decoder data corruption due to decoder pooling for all components that create an HTTP server. (#13954)
• pkg/otelcol: Remove UB when taking internal logs and move them to the final zapcore.Core (#14009) This can happen because of a race on accessing logsTaken.
• pkg/confmap: Fix a potential race condition in confmap by closing the providers first. (#14018)

v1.43.0/v0.137.0

💡 Enhancements 💡

• cmd/mdatagen: Improve validation for resource attribute enabled field in metadata files (#12722) Resource attributes now require an explicit enabled field in metadata.yaml files, while regular attributes are prohibited from having this field. This improves validation and prevents configuration errors.

• all: Changelog entries will now have their component field checked against a list of valid components. (#13924) This will ensure a more standardized changelog format which makes it easier to parse.

• pkg/pdata: Mark featuregate pdata.useCustomProtoEncoding as stable (#13883)

v1.42.0/v0.136.0

💡 Enhancements 💡

• xpdata: Add Serialization and Deserialization of AnyValue (#12826)
• debugexporter: add support for batching (#13791) The default queue size is 1
• configtls: Add early validation for TLS server configurations to fail fast when certificates are missing instead of failing at runtime. (#13130, #13245)
• mdatagen: Expose stability level in generated metric documentation (#13748)
• internal/tools: Add support for modernize in Makefile (#13796)

🧰 Bug fixes 🧰

• otelcol: Fix a potential deadlock during collector shutdown. (#13740)
• otlpexporter: fix the validation of unix socket endpoints (#13826)

v1.41.0/v0.135.0

💡 Enhancements 💡

• exporterhelper: Add new exporter_queue_batch_send_size and exporter_queue_batch_send_size_bytes metrics, showing the size of telemetry batches from the exporter. (#12894)

v1.40.0/v0.134.0

💡 Enhancements 💡

• pdata: Add custom grpc/encoding that replaces proto and calls into the custom marshal/unmarshal logic in pdata. (#13631) This change should not affect other gRPC calls since it fallbacks to the default grpc/proto encoding if requests are not pdata/otlp requests.
• pdata: Avoid copying the pcommon.Map when same origin (#13731) This is a very large improvement if using OTTL with map functions since it will avoid a map copy.
• exporterhelper: Respect num_consumers when batching and partitioning are enabled. (#13607)

🧰 Bug fixes 🧰

• pdata: Correctly parse OTLP payloads containing non-packed repeated primitive fields (#13727, #13730) This bug prevented the Collector from ingesting most Histogram, ExponentialHistogram, and Profile payloads.

v1.39.0/v0.133.0

🛑 Breaking changes 🛑

• all: Increase minimum Go version to 1.24 (#13627)

💡 Enhancements 💡

• otlphttpexporter: Add profiles_endpoint configuration option to allow custom endpoint for profiles data export (#13504) The profiles_endpoint configuration follows the same pattern as traces_endpoint, metrics_endpoint, and logs_endpoint. When specified, profiles data will be sent to the custom URL instead of the default {endpoint}/v1development/profiles.

• pdata: Add support for local memory pooling for data objects. (#13678) This is still an early experimental (alpha) feature. Do not recommended to be used production. To enable use "--featuregate=+pdata.useProtoPooling"

• pdata: Optimize CopyTo messages to avoid any copy when same source and destination (#13680)

• receiverhelper: New feature flag to make receiverhelper distinguish internal vs. downstream errors using new otelcol_receiver_failed_x and otelcol_receiver_requests metrics (#12207, #12802) This is a breaking change for the semantics of the otelcol_receiver_refused_metric_points, otelcol_receiver_refused_log_records and otelcol_receiver_refused_spans metrics. These new metrics and semantics are enabled through the receiverhelper.newReceiverMetrics feature gate.

• debugexporter: Add support for entity references in debug exporter output (#13324)

• pdata: Fix unnecessary allocation of a new state when adding new values to pcommon.Map (#13634)

• service: Implement refcounting for pipeline data owned memory. (#13631) This feature is protected by --featuregate=+pdata.useProtoPooling.

• service: Add a debug-level log message when a consumer returns an error. (#13357)

• xpdata: Optimize xpdata/context for persistent queue when only one value for key (#13636)

• otlpreceiver: Log the listening addresses of the receiver, rather than the configured endpoints. (#13654)

• pdata: Use the newly added proto marshaler/unmarshaler for the official proto Marshaler/Unmarshaler (#13637) If any problems observed with this consider to disable the featuregate --feature-gates=-pdata.useCustomProtoEncoding

• configtls: Enable X25519MLKEM768 as per draft-ietf-tls-ecdhe-mlkem (#13670)

🧰 Bug fixes 🧰

• exporterhelper: Prevent uncontrolled goroutines in batcher due to a incorrect worker pool behaviour. (#13689)
• service: Ensure the insecure configuration is accounted for when normalizing the endpoint. (#13691)
• configoptional: Allow validating nested types (#13579) configoptional.Optional now implements xconfmap.Validator
• batchprocessor: Fix UB in batch processor when trying to read bytes size after adding request to pipeline (#13698) This bug only happens id detailed metrics are enabled and also an async (sending queue enabled) exporter that mutates data is configure.

v1.38.0/v0.132.0

🛑 Breaking changes 🛑

• componentstatus: Change the signature of the componentstatus.NewEvent to accept multiple options. (#13210) Changes the signature of the component.NewEvent to accept multiple EventBuilderOption, like the new WithAttributes constructor.

🚩 Deprecations 🚩

• service: move service.noopTraceProvider feature gate to deprecated stage (#13492) The functionality of the feature gate is available via configuration with the following telemetry settings:

  1	service:
  2	telemetry:
  3	traces:
  4	level: none

• mdatagen: Remove the deletion of generated_component_telemetry_test.go. (#12067) This file used to be generated by mdatagen. Starting with 0.122.0, the code deletes that file. It is no longer necessary to delete the file, as code has had time to upgrade to mdatagen and delete the file.

• service: The telemetry.disableHighCardinalityMetrics feature gate is deprecated (#13537) The feature gate is now deprecated since metric views can be configured. The feature gate will be removed in v0.134.0.

  The metric attributes removed by this feature gate are no longer emitted by the Collector by default, but if needed, you can achieve the same functionality by configuring the following metric views:

  yaml

  1	service:
  2	telemetry:
  3	metrics:
  4	level: detailed
  5	views:
  6	- selector:
  7	meter_name: "go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
  8	stream:
  9	attribute_keys:
  10	excluded: ["net.sock.peer.addr", "net.sock.peer.port", "net.sock.peer.name"]
  11	- selector:
  12	meter_name: "go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
  13	stream:
  14	attribute_keys:
  15	excluded: ["net.host.name", "net.host.port"]

  Note that this requires setting service::telemetry::metrics::level: detailed. If you have a strong use case for using views in combination with a different level, please show your interest in https://github.com/open-telemetry/opentelemetry-collector/issues/10769.

💡 Enhancements 💡

• pdata: Generate Logs/Traces/Metrics/Profiles and p[log|trace|metric|profile]ExportResponse with pdatagen. (#13597) This change brings consistency on how these structs are written and remove JSON marshaling/unmarshaling hand written logic.
• confighttp: Add option to configure ForceAttemptHTTP2 to support HTTP/1 specific transport settings. (#13426)
• pdata: Avoid unnecessary buffer copy when JSON marshal fails. (#13598)
• cmd/mdatagen: Use a custom host implementation for lifecycle tests (#13589) Use a custom noop host implementation that implements all non-deprecated, publicly-accessible interfaces implemented by the Collector service.
• processorhelper: Add processor internal duration metric. (#13231)
• pdata: Improve RemoveIf for slices to not reference anymore the removed memory (#13522)

🧰 Bug fixes 🧰

• pdata: Fix null pointer access when copying into a slice with larger cap but smaller len. (#13523)

• confighttp: Fix middleware configuration field name from "middleware" to "middlewares" for consistency with configgrpc (#13444)

• memorylimiterextension, memorylimiterprocessor: Memory limiter extension and processor shutdown don't throw an error if the component was not started first. (#9687) The components would throw an error if they were shut down before being started. With this change, they will no longer return an error, conforming to the lifecycle of components expected.

• confighttp: Reuse zstd Reader objects (#11824)

v1.37.0/v0.131.0

🛑 Breaking changes 🛑

• confighttp: Move confighttp.framedSnappy feature gate to beta. (#10584)

💡 Enhancements 💡

• exporter/debug: Move to alpha stability except profiles (#13487)

• exporterhelper: Enable exporter.PersistRequestContext feature gate by default. (#13437) Request context is now preserved by default when using persistent queues. Note that Auth extensions context is not propagated through the persistent queue.

• pdata: Use pdatagen to generate marshalJSON without using gogo proto jsonpb. (#13450)

• otlpreceiver: Remove usage of gogo proto which uses reflect.Value.MethodByName. Removes one source of disabling DCE. (#12747)

• exporterhelper: Fix metrics split logic to consider metrics description into the size. (#13418)

• service: New pipeline instrumentation now differentiates internal failures from downstream errors (#13234) With the telemetry.newPipelineTelemetry feature gate enabled, the "received" and "produced" metrics related to a component now distinguish between two types of errors:

  • "outcome = failure" indicates that the component returned an internal error;
  • "outcome = refused" indicates that the component successfully emitted data, but returned an error coming from a downstream component processing that data.

• pdata: Remove usage of text/template from pdata, improves DCE. (#12747)

• architecture: New Tier 3 platform riscv64 allowing the collector to be built and distributed for this platform. (#13462)

🧰 Bug fixes 🧰

• exporterhelper: Prevents the exporter for being stuck when telemetry data is bigger than batch.max_size (#12893)
• mdatagen: Fix import paths for mdatagen component (#13069)
• otlpreceiver: Error handler correctly fallbacks to content type (#13414)
• pdata/pprofiles: Fix profiles JSON unmarshal logic for originalPayload. The bytes have to be base64 encoded. (#13483)
• xpdata: Fix unmarshaling JSON for entities, add e2e tests to avoid this in the future. (#13480)
• service: Downgrade dependency of prometheus exporter in OTel Go SDK (#13429) This fixes the bug where collector's internal metrics are emitted with an unexpected suffix in their names when users configure the service::telemetry::metrics::readers with Prometheus
• service: Revert Default internal metrics config now enables otel_scope_ labels (#12939, #13344) Reverting change temporarily due to prometheus exporter downgrade. This unfortunately re-introduces the bug that instrumentation scope attributes cause errors in Prometheus exporter. See http://github.com/open-telemetry/opentelemetry-collector/issues/12939 for details.
• builder: Remove undocumented handling of DIST_* environment variables replacements (#13335)

v1.36.1/v0.130.1

🧰 Bug fixes 🧰

• service: Fixes bug where internal metrics are emitted with an unexpected suffix in their names when users configure service::telemetry::metrics::readers with Prometheus. (#13449) See more details on https://github.com/open-telemetry/opentelemetry-go/issues/7039

v1.36.0/v0.130.0

❗ Known Issues ❗

• Due to a bug in the prometheus exporter, if you are configuring a prometheus exporter, the collector's internal metrics will be emitted with an unexpected suffix in its name. For example, the metric otelcol_exporter_sent_spans__spans__total instead of otelcol_exporter_sent_spans_total. The workaround is to manually configure without_units: true in your prometheus exporter config

  yaml

  1	service:
  2	telemetry:
  3	metrics:
  4	readers:
  5	- pull:
  6	exporter:
  7	prometheus:
  8	host: 0.0.0.0
  9	port: 8888
  10	without_units: true

  If you are using the collector's default Prometheus exporter for exporting internal metrics you are unaffected.

🛑 Breaking changes 🛑

• exporter/otlp: Remove deprecated batcher config from OTLP, use queuebatch (#13339)

💡 Enhancements 💡

• exporterhelper: Enable items and bytes sizers for persistent queue (#12881)
• exporterhelper: Refactor persistent storage size backup to always record it. (#12890)
• exporterhelper: Add support to configure a different Sizer for the batcher than the queue (#13313)
• yaml: Replaced sigs.k8s.io/yaml with go.yaml.in/yaml for improved support and long-term maintainability. (#13308)

🧰 Bug fixes 🧰

• exporterhelper: Fix exporter.PersistRequestContext feature gate (#13342)

• exporterhelper: Preserve all metrics metadata when batch splitting. (#13236) Previously, when large batches of metrics were processed, the splitting logic in metric_batch.go could cause the name field of some metrics to disappear. This fix ensures that all metric fields are properly preserved when metricRequest objects are split.

• service: Default internal metrics config now enables otel_scope_ labels (#12939, #13344) By default, the Collector exports its internal metrics using a Prometheus exporter from the opentelemetry-go repository. With this change, the Collector no longer sets "without_scope_info" to true in its configuration.

  This means that all exported metrics will have otel_scope_name, otel_scope_schema_url, and otel_scope_version labels corresponding to the instrumentation scope metadata for that metric.

  This notably prevents an error when multiple metrics are only distinguished by their instrumentation scopes and end up aliased during export.

  If this is not desired behavior, a Prometheus exporter can be explicitly configured with this option enabled.

v1.35.0/v0.129.0

🛑 Breaking changes 🛑

• exporterhelper: Remove deprecated sending_queue::blocking options, use sending_queue::block_on_overflow. (#13211)

💡 Enhancements 💡

• mdatagen: Taught mdatagen to print the go list stderr output on failures, and to run go list where the metadata file is. (#13205)

• service: Support setting sampler and limits under service::telemetry::traces (#13201) This allows users to enable sampling and set span limits on internal Collector traces using the OpenTelemetry SDK declarative configuration.

• pdata/pprofile: Add new helper methods FromLocationIndices and PutLocation to read and modify the content of locations. (#13150)

• exporterhelper: Preserve request span context and client information in the persistent queue. (#11740, #13220, #13232) It allows internal collector spans and client information to propagate through the persistent queue used by the exporters. The same way as it's done for the in-memory queue. Currently, it is behind the exporter.PersistRequestContext feature gate, which can be enabled by adding --feature-gates=exporter.PersistRequestContext to the collector command line. An exporter buffer stored by a previous version of the collector (or by a collector with the feature gate disabled) can be read by a newer collector with the feature enabled. However, the reverse is not supported: a buffer stored by a newer collector with the feature enabled cannot be read by an older collector (or by a collector with the feature gate disabled).

🧰 Bug fixes 🧰

• pdata: Fix copying of optional fields when the source is unset. (#13268)
• service: Only allocate one set of internal log sampling counters (#13014) The case where logs are only exported to stdout was fixed in v0.126.0; this new fix also covers the case where logs are exported through OTLP.

v1.34.0/v0.128.0

🛑 Breaking changes 🛑

• service/telemetry: Mark "telemetry.disableAddressFieldForInternalTelemetry" as stable (#13152)

💡 Enhancements 💡

• confighttp: Update the HTTP server span naming to use the HTTP method and route pattern instead of the path. (#12468) The HTTP server span name will now be formatted as <http.request.method> <http.route>. If a route pattern is not available, it will fall back to <http.request.method>.

• service: Use configured loggers to log errors as soon as it is available (#13081)

• service: Remove stabilized featuregate useOtelWithSDKConfigurationForInternalTelemetry (#13152)

🧰 Bug fixes 🧰

• telemetry: Add generated resource attributes to the printed log messages. (#13110) If service.name, service.version, or service.instance.id are not specified in the config, they will be generated automatically. This change ensures that these attributes are also included in the printed log messages.

• mdatagen: Fix generation when there are no events in the metadata. (#13123)

• confmap: Do not panic on assigning nil maps to non-nil maps (#13117)

• pdata: Fix event_name skipped when unmarshalling LogRecord from JSON (#13127)

v1.33.0/v0.127.0

🚩 Deprecations 🚩

• semconv: Deprecating the semconv package in favour of go.opentelemetry.io/otel/semconv (#13012)

💡 Enhancements 💡

• exporter/debug: Display resource and scope in normal verbosity (#10515)
• service: Add size metrics defined in Pipeline Component Telemetry RFC (#13032) See Pipeline Component Telemetry RFC for more details:
  • otelcol.receiver.produced.size
  • otelcol.processor.consumed.size
  • otelcol.processor.produced.size
  • otelcol.connector.consumed.size
  • otelcol.connector.produced.size
  • otelcol.exporter.consumed.size

v1.32.0/v0.126.0

🛑 Breaking changes 🛑

• configauth: Removes deprecated configauth.Authentication and extensionauthtest.NewErrorClient (#12992) The following have been removed:
  • configauth.Authentication use configauth.Config instead
  • extensionauthtest.NewErrorClient use extensionauthtest.NewErr instead

💡 Enhancements 💡

• service: Replace go.opentelemetry.io/collector/semconv usage with go.opentelemetry.io/otel/semconv (#12991)

• confmap: Update the behavior of the confmap.enableMergeAppendOption feature gate to merge only component lists. (#12926)

• service: Add item count metrics defined in Pipeline Component Telemetry RFC (#12812) See Pipeline Component Telemetry RFC for more details:

  • otelcol.receiver.produced.items
  • otelcol.processor.consumed.items
  • otelcol.processor.produced.items
  • otelcol.connector.consumed.items
  • otelcol.connector.produced.items
  • otelcol.exporter.consumed.items

• tls: Add trusted platform module (TPM) support to TLS authentication. (#12801) Now the TLS allows the use of TPM for loading private keys (e.g. in TSS2 format).

🧰 Bug fixes 🧰

• exporterhelper: Add validation error for batch config if min_size is greater than queue_size. (#12948)

• telemetry: Allocate less memory per component when OTLP exporting of logs is disabled (#13014)

• confmap: Use reflect.DeepEqual to avoid panic when confmap.enableMergeAppendOption feature gate is enabled. (#12932)

• internal telemetry: Add resource attributes from telemetry.resource to the logger (#12582) Resource attributes from telemetry.resource were not added to the internal console logs.

  Now, they are added to the logger as part of the "resource" field.

• confighttp and configcompression: Fix handling of snappy content-encoding in a backwards-compatible way (#10584, #12825) The collector used the Snappy compression type of "framed" to handle the HTTP content-encoding "snappy". However, this encoding is typically used to indicate the "block" compression variant of "snappy". This change allows the collector to:

  • When receiving a request with encoding 'snappy', the server endpoints will peek at the first bytes of the payload to determine if it is "framed" or "block" snappy, and will decompress accordingly. This is a backwards-compatible change.

  If the feature-gate "confighttp.framedSnappy" is enabled, you'll see new behavior for both client and server:

  • Client compression type "snappy" will now compress to the "block" variant of snappy instead of "framed". Client compression type "x-snappy-framed" will now compress to the "framed" variant of snappy.
  • Servers will accept both "snappy" and "x-snappy-framed" as valid content-encodings.

• tlsconfig: Disable TPM tests on MacOS/Darwin (#12964)

v1.31.0/v0.125.0

🛑 Breaking changes 🛑

• service: Lowercase values for 'otelcol.component.kind' attributes. (#12865)

• service: Restrict the telemetry.newPipelineTelemetry feature gate to metrics. (#12856, #12933) The "off" state of this feature gate introduced a regression, where the Collector's internal logs were missing component attributes. See issue #12870 for more details on this bug.

  On the other hand, the "on" state introduced an issue with the Collector's default internal metrics, because the Prometheus exporter does not currently support instrumentation scope attributes.

  To solve both of these issues, this change turns on the new scope attributes for logs and traces by default regardless of the feature gate. However, the new scope attributes for metrics stay locked behind the feature gate, and will remain off by default until the Prometheus exporter is updated to support scope attributes.

  Please understand that enabling the telemetry.newPipelineTelemetry feature gate may break the export of Collector metrics through, depending on your configuration. Having a batch processor in multiple pipelines is a known trigger for this.

  This comes with a breaking change, where internal logs exported through OTLP will now use instrumentation scope attributes to identify the source component instead of log attributes. This does not affect the Collector's stderr output. See the changelog for v0.123.0 for a more detailed description of the gate's effects.

💡 Enhancements 💡

• mdatagen: Add support for attributes for telemetry configuration in metadata. (#12919)
• configmiddleware: Add extensionmiddleware interface. (#12603, #9591)
• configgrpc: Add gRPC middleware support. (#12603, #9591)
• confighttp: Add HTTP middleware support. (#12603, #9591, #7441)
• configmiddleware: Add configmiddleware struct. (#12603, #9591)

🧰 Bug fixes 🧰

• exporterhelper: Do not ignore the num_consumers setting when batching is enabled. (#12244)
• exporterhelper: Reject elements larger than the queue capacity (#12847)
• mdatagen: Add time and plog package imports (#12907)
• confmap: Maintain nil values when marshaling or unmarshaling nil slices (#11882) Previously, nil slices were converted to empty lists, which are semantically different than a nil slice. This change makes this conversion more consistent when encoding or decoding config, and these values are now maintained.

v1.30.0/v0.124.0

💡 Enhancements 💡

• exporterhelper: Add support for bytes-based batching for profiles in the exporterhelper package. (#3262)
• otelcol: Enhance config validation using command to capture all validation errors that prevents the collector from starting. (#8721)
• exporterhelper: Link batcher context to all batched request's span contexts. (#12212, #8122)

🧰 Bug fixes 🧰

• confighttp: Ensure http authentication server failures are handled by the provided error handler (#12666)

v1.29.0/v0.123.0

❗ Known Issues ❗

• This version increases memory usage by ~0.5 MB per component in the pipelines because a separate Zap Core logger is initialized for each component. The issue is partially fixed in v0.126.0 for users who write logs to stdout, but do not export logs via OTLP. See https://github.com/open-telemetry/opentelemetry-collector/issues/13014 for more details.

🛑 Breaking changes 🛑

• service/telemetry: Mark telemetry.disableAddressFieldForInternalTelemetry as beta, usage of deprecated service::telemetry::address are ignored (#25115) To restore the previous behavior disable telemetry.disableAddressFieldForInternalTelemetry feature gate.
• exporterbatch: Remove deprecated fields min_size_items and max_size_items from batch config. (#12684)

🚩 Deprecations 🚩

• otlpexporter: Mark BatcherConfig as deprecated, use sending_queue::batch instead (#12726)
• exporterhelper: Deprecate blocking in favor of block_on_overflow. (#12710)
• exporterhelper: Deprecate configuring exporter batching separately. Use sending_queue::batch instead. (#12772) Moving the batching configuration to sending_queue::batch requires setting sending_queue::sizer to items which means that sending_queue::queue_size needs to be also increased by the average batch size number (roughly x5000 for the default batching configuration). See https://github.com/open-telemetry/opentelemetry-collector/tree/main/exporter/exporterhelper#configuration

💡 Enhancements 💡

• exporterhelper: Add support to configure batching in the sending queue. (#12746)

• exporterhelper: Add support for wait_for_result, remove disabled_queue (#12742) This has a side effect for users of the experimental BatchConfig with the queue disabled, since not this is | uses only NumCPU() consumers.

• exporterhelper: Allow exporter memory queue to use different type of sizers. (#12708)

• service: Add "telemetry.newPipelineTelemetry" feature gate to inject component-identifying attributes in internal telemetry (#12217) With the feature gate enabled, all internal telemetry (metrics/traces/logs) will include some of the following instrumentation scope attributes:

  • otelcol.component.kind
  • otelcol.component.id
  • otelcol.pipeline.id
  • otelcol.signal
  • otelcol.signal.output

  These attributes are defined in the Pipeline Component Telemetry RFC, and identify the component instance from which the telemetry originates. They are added automatically without changes to component code.

  These attributes were already included in internal logs as regular log attributes, starting from v0.120.0. For consistency with other signals, they have been switched to scope attributes (with the exception of logs emitted to standard output), and are now enabled by the feature gate.

  Please make sure that the exporter / backend endpoint you use has support for instrumentation scope attributes before using this feature. If the internal telemetry is exported to another Collector, a transform processor could be used to turn them into other kinds of attributes if necessary.

• exporterhelper: Enable support to do batching using bytes sizer (#12751)

• service: Add config key to set metric views used for internal telemetry (#10769) The service::telemetry::metrics::views config key can now be used to explicitly set the list of metric views used for internal telemetry, mirroring meter_provider::views in the SDK config. This can be used to disable specific internal metrics, among other uses.

  This key will cause an error if used alongside other features which would normally implicitly create views, such as:

  • not setting service::telemetry::metrics::level to detailed;
  • enabling the telemetry.disableHighCardinalityMetrics feature flag.

🧰 Bug fixes 🧰

• exporterhelper: Fix order of starting between queue and batch. (#12705)

v1.28.1/v0.122.1

🧰 Bug fixes 🧰

• confmap: Ensure slices with defaults containing struct values are correctly set. (#12661) This reverts the changes made in https://github.com/open-telemetry/opentelemetry-collector/pull/11882.

v1.28.0/v0.122.0

🛑 Breaking changes 🛑

• service: Batch processor telemetry is no longer emitted at "basic" verbosity level (#7890) According to the guidelines, basic-level telemetry should be reserved for core Collector APIs. Components such as the batch processor should emit telemetry starting from the "normal" level (which is also the default level).

  Migration: If your Collector telemetry was set to level: basic and you want to keep seeing batch processor-related metrics, consider switching to level: normal instead.

💡 Enhancements 💡

• service: Add service.AllowNoPipelines feature gate to allow starting the Collector without pipelines. (#12613) This can be used to start with only extensions.

• mdatagen: Delete generated_status.go if the component type doesn't require it. (#12346)

• componenttest: Improve config struct mapstructure field tag checks (#12590) remain tags and omitempty tags without a custom field name will now pass validation.

• service: include component id/type in start error (#10426)

• mdatagen: Add deprecation date and migration guide fields as part of component metadata (#12359)

• confmap: Introduce a new feature flag to allow for merging lists instead of discarding the existing ones. (#8394, #8754, #10370) You can enable this option via the command line by running following command: otelcol --config=main.yaml --config=extra_config.yaml --feature-gates=-confmap.enableMergeAppendOption

• zpagesextension: Add expvar handler to zpages extension. (#11081)

🧰 Bug fixes 🧰

• confmap: Maintain nil values when marshaling or unmarshaling nil slices (#11882) Previously, nil slices were converted to empty lists, which are semantically different than a nil slice. This change makes this conversion more consistent when encoding or decoding config, and these values are now maintained.

• service: do not attempt to register process metrics if they are disabled (#12098)

v1.27.0/v0.121.0

🛑 Breaking changes 🛑

• confighttp: Make the client config options max_idle_conns, max_idle_conns_per_host, max_conns_per_host, and idle_conn_timeout integers (#9478) All four options can be set to 0 where they were previously set to null

🚩 Deprecations 🚩

• exporterhelper: Deprecate min_size_items and max_size_items in favor of min_size and max_size. (#12486)

💡 Enhancements 💡

• mdatagen: Add converter and provider module classes (#12467)

• pipeline: output pipeline name with signal as signal[/name] format in logs. (#12410)

• memorylimiter: Add support to configure min GC intervals for soft and hard limits. (#12450)

• otlpexporter: Update the stability level for logs, it has been as stable as traces and metrics for some time. (#12423)

• service: Create a new subcommand to dump the initial configuration after resolving/merging. (#11479) To use the print-initial-config subcommand, invoke the Collector with the subcommand and corresponding feature gate: otelcol print-initial-config --feature-gates=otelcol.printInitialConfig --config=config.yaml. Note that the feature gate enabling this flag is currently in alpha stability, and the subcommand may be changed in the future.

• memorylimiterprocessor: Add support for profiles. (#12453)

• otelcol: Converters are now available in the components command. (#11900, #12385)

• component: Mark module as stable (#9376)

• confmap: Surface YAML parsing errors when they happen at the top-level. (#12180) This adds context to some instances of the error "retrieved value (type=string) cannot be used as a Conf", which typically happens because of invalid YAML documents

• pprofile: Add LinkIndex attribute to the generated Sample type (#12485)

• exporterhelper: Stabilize exporter.UsePullingBasedExporterQueueBatcher and remove old batch sender (#12425)

• mdatagen: Update metadata schema with new fields without enforcing them (#12359)

🧰 Bug fixes 🧰

• service: Fix crash at startup when converting from v0.2.0 to v0.3.0 (#12438)
• service: fix bug in parsing service::telemetry configuration (#12437)
• exporterhelper: Fix bug where the error logged when conversion of data fails is always nil (#12510)
• mdatagen: Adds back missing import for filter when emitting resource attributes (#12455)

v1.26.0/v0.120.0

🛑 Breaking changes 🛑

• all: Added support for go1.24, bumped minimum version to 1.23 (#12370)
• mdatagen: Removing deprecated generated funcs and a few test funcs as well. (#12304)
• service: Align component logger attributes with those defined in RFC (#12217) See Pipeline Component Telemetry RFC

💡 Enhancements 💡

• otlpreceiver: Update stability for logs (#12335)
• exporterhelper: Implement sync disabled queue used when batching is enabled. (#12245)
• exporterhelper: Enable the new pull-based batcher in exporterhelper (#12291)
• exporterhelper: Update queue size after the element is done exported (#12399) After this change the active queue size will include elements in the process of being exported.
• otelcol: Add featuregate command to display information about available features (#11998) The featuregate command allows users to view detailed information about feature gates including their status, stage, and description.

🧰 Bug fixes 🧰

• memorylimiter: Logger no longer attributes to single signal, pipeline, or component. (#12217)
• otlpreceiver: Logger no longer attributes to random signal when receiving multiple signals. (#12217)
• exporterhelper: Fix undefined behavior access to request after send to next component. This causes random memory access. (#12281)
• exporterhelper: Fix default batcher to correctly call all done callbacks exactly once (#12247)
• otlpreceiver: Fix OTLP http receiver to correctly set Retry-After (#12367)
• otlphttpexporter: Fix parsing logic for Retry-After in OTLP http protocol. (#12366) The value of Retry-After field can be either an HTTP-date or delay-seconds and the current logic only parsed delay-seconds.
• cmd/builder: Ensure unique aliases for modules with same suffix (#12201)

v1.25.0/v0.119.0

🛑 Breaking changes 🛑

• exporterhelper: Rename exporter span signal specific attributes (e.g. "sent_spans" / "send_failed_span") to "items.sent" / "items.failed". (#12165)

• cmd/mdatagen: Remove dead field telemetry::level (#12144)

• exporterhelper: Change exporter ID to be a Span level attribute instead on each event. (#12164) This does not have an impact on the level of information emitted, but on the structure of the Span.

• cmd/mdatagen: Remove level field from metrics definition (#12145) This mechanism will be added back once a new views mechanism is implemented.

• service: Value for telemetry exporter otlp.protocol updated from grpc/protobuf to grpc. (#12337)

• service: internal metrics exported over Prometheus may differ from previous versions. (#11611)

  Users who do not customize the Prometheus reader should not be impacted. The change to update the internal telemetry to use otel-go config can cause unexpected behaviour for end users. This change is caused by the default values in config being different from what the Collector has used in previous versions. The following changes can occur when users configure their service::telemetry::metrics::readers:

  • the metric name will append a _total suffix if without_type_suffix is not configured. Set without_type_suffix to true to disable this.
  • units will be appended to metric name if without_units is not configured. Set without_units to true to disable this.
  • a target_info metric will be emitted if without_scope_info is not configured. Set without_scope_info to true to disable this.

💡 Enhancements 💡

• configtls: Allow users to mention their preferred curve types for ECDHE handshake (#12174)
• service: remove custom code and instead use config package to instantiate meter provider. (#11611)
• otelcol: Adds support for listing config providers in components command's output (#11570)
• general: Reduce memory allocations when loading configuration and parsing component names (#11964)

🧰 Bug fixes 🧰

• exporterhelper: Fix bug that the exporter with new batcher may have been marked as non mutation. (#12239) Only affects users that manually turned on exporter.UsePullingBasedExporterQueueBatcher featuregate.

• service: Preserve URL normalization logic that was present before. (#12254)

• confighttp: confighttp.ToServer now sets ErrorLog with a default logger backed by Zap (#11820)

  This change ensures that the http.Server's ErrorLog is correctly set using Zap's logger at the error level, addressing the issue of error logs being printed using a different logger.

• exporterhelper: Fix context propagation for DisabledBatcher (#12231)

• mdatagen: apply fieldalignment to generated code (#12125)

• mdatagen: Fix bug where Histograms were marked as not supporting temporal aggregation (#12168)

• exporterhelper: Fix MergeSplit issue that ignores the initial message size. (#12257)

• service: Include validation errors from telemetry.Config when validating the service config (#12100) Previously validation errors were only printed to the console

• service-telemetry: pass the missing async error channel into service telemetry settings (#11417)

v1.24.0/v0.118.0

💡 Enhancements 💡

• exporterhelper: Add blocking option to control queue behavior when full (#12090)
• debugexporter: Add EventName to debug exporter for Logs. EventName was added as top-level field in the LogRecord from 1.5.0 of proto definition. (#11966)
• confighttp: Added support for configuring compression levels. (#10467) A new configuration option called CompressionParams has been added to confighttp. | This allows users to configure the compression levels for the confighttp client.
• exporterhelper: Change the memory queue implementation to not pre-allocate capacity objects. (#12070) This change improves memory usage of the collector under low utilization and is a prerequisite for supporting different other size limitations (number of items, bytes).

🧰 Bug fixes 🧰

• mdatagen: apply fieldalignment to generated code (#12121)
• otelcoltest: Set DefaultScheme to env in the test ConfigProvider to replicate the default provider used by the Collector. (#12066)

v1.23.0/v0.117.0

🛑 Breaking changes 🛑

• otelcol: Remove warnings when 0.0.0.0 is used (#11713, #8510)

🧰 Bug fixes 🧰

• internal/sharedcomponent: Fixed bug where sharedcomponent would use too much memory remembering all the previously reported statuses (#11826)

v1.22.0/v0.116.0

🛑 Breaking changes 🛑

• pdata/pprofile: Remove deprecated Profile.EndTime and Profile.SetEndTime methods. (#11796)

💡 Enhancements 💡

• xconfighttp: Add WithOtelHTTPOptions to experimental module xconfighttp (#11770)

🧰 Bug fixes 🧰

• exporterhelper: Fix memory leak at exporter shutdown (#11401)
• sharedcomponent: Remove race-condition and cleanup locking (#11819)

v1.21.0/v0.115.0

🛑 Breaking changes 🛑

• otelcol: Change all logged timestamps to ISO8601. (#10543) This makes log timestamps human-readable (as opposed to epoch seconds in scientific notation), but may break users trying to parse logged lines in the old format.
• pdata/pprofile: Upgrade pdata to opentelemetry-proto v1.4.0 (#11722)

🚩 Deprecations 🚩

• scraperhelper: Deprecate all Scraper helpers in scraperhelper (#11732) Deprecate ScrapeFunc, ScraperOption, WithStart, WithShutdown in favor of equivalent funcs in scraper package.

💡 Enhancements 💡

• exporterqueue: Introduce a feature gate exporter.UsePullingBasedExporterQueueBatcher to use the new pulling model in exporter queue batching. (#8122, #10368) If both queuing and batching is enabled for exporter, we now use a pulling model instead of a pushing model. num_consumer in queue configuration is now used to specify the maximum number of concurrent workers that are sending out the request.

• service: label metrics as alpha to communicate their stability (#11729)

• consumer: Mark consumer as stable. (#9046)

• service: Add support for ca certificates in telemetry metrics otlp grpc exporter (#11633) Before this change the Certificate value in config was silently ignored.

🧰 Bug fixes 🧰

• service: ensure OTLP emitted logs respect severity (#11718)
• featuregate: Fix an unfriendly display message runtime error when featuregate is used to display command line usage. (#11651)
• profiles: Fix iteration over scope profiles while counting the samples. (#11688)

v1.20.0/v0.114.0

💡 Enhancements 💡

• cmd/builder: Allow for replacing of local Providers and Converters when building custom collector with ocb. (#11649) Use the property path under gomod to replace an go module with a local folder in builder-config.yaml. Ex:

  1	providers:
  2	- gomod: module.url/my/custom/provider v1.2.3
  3	path: /path/to/local/provider

• cmd/builder: Allow configuring confmap.Converter components in ocb. (#11582) If no converters are specified, there will be no converters added. Currently, the only published converter is expandconverter which is deprecated as of v0.107.0, but can still be added for testing purposes.

  To configure a custom converter, make sure your converter implements the converter interface and is published as a go module (or replaced locally if not published). You may then use the converters key in your OCB build manifest with a list of Go modules (and replaces as necessary) to include your converter.

  Please note that converters are order-dependent. The confmap will apply converters in order of which they are listed in your manifest if there is more than one.

• all: shorten time period before removing an unmaintained component from 6 months to 3 months (#11664)

🧰 Bug fixes 🧰

• all: Updates dialer timeout section documentation in confignet README (#11685)
• scraperhelper: If the scraper shuts down, do not scrape first. (#11632) When the scraper is shutting down, it currently will scrape at least once. With this change, upon receiving a shutdown order, the receiver's scraperhelper will exit immediately.

v1.19.0/v0.113.0

🛑 Breaking changes 🛑

• internal/fanoutconsumer: Extract internal/fanoutconsumer as a separate go module (#11441)
• builder: Remove builder support to build old version, and the otelcol_version config (#11405) User should remove this property from their config, to build older versions use older builders.
• receiver: Make receivertest into its own module (#11462)
• builder: Remove deprecated flags from Builder (#11576) Here is the list of flags | --name, --description, --version, --otelcol-version, --go, --module
• internal/sharedcomponent: Extract internal/sharedcomponent as a separate go module (#11442)

💡 Enhancements 💡

• mdatagen: Add otlp as supported distribution (#11527)
• batchprocessor: Move single shard batcher creation to the constructor (#11594)
• service: add support for using the otelzap bridge and emit logs using the OTel Go SDK (#10544)

🧰 Bug fixes 🧰

• service: ensure traces and logs emitted by the otel go SDK use the same resource information (#11578)
• config/configgrpc: Patch for bug in the grpc-go NewClient that makes the way the hostname is resolved incompatible with the way proxy setting are applied. (#11537)
• builder: Update builder default providers to latest stable releases (#11566)

v1.18.0/v0.112.0

🛑 Breaking changes 🛑

• consumer/consumererror: Extract consumer/consumererror as a separate go module (#11440)
• exporter/exportertest: Put exportertest into its own module (#11461)
• service: Remove stable gate component.UseLocalHostAsDefaultHost (#11412)

🚩 Deprecations 🚩

• processortest: Deprecated 'NewUnhealthyProcessorCreateSettings'. Use NewNopSettings instead. (#11307)

💡 Enhancements 💡

• mdatagen: Added generated_package_name config field to support custom generated package name. (#11231)
• mdatagen: Generate documentation for components with resource attributes only (#10705)
• confighttp: Adding support for lz4 compression into the project (#9128)
• service: Hide profiles support behind a feature gate while it remains alpha. (#11477)
• exporterhelper: Retry sender will fail fast when the context timeout is shorter than the next retry interval. (#11183)

🧰 Bug fixes 🧰

• cmd/builder: Fix default configuration for builder for httpprovider, httpsprovider, and yamlprovider. (#11357)
• processorhelper: Fix issue where in/out parameters were not recorded when error was returned from consumer. (#11351)

v1.17.0/v0.111.0

🛑 Breaking changes 🛑

• service/telemetry: Change default metrics address to "localhost:8888" instead of ":8888" (#11251) This behavior can be disabled by disabling the feature gate 'telemetry.UseLocalHostAsDefaultMetricsAddress'.
• loggingexporter: Removed the deprecated logging exporter. Use the debug exporter instead. (#11037)

🚩 Deprecations 🚩

• service/telemetry: Deprecate service::telemetry::metrics::address in favor of service::telemetry::metrics::readers. (#11205)
• processorhelper: Deprecate BuildProcessorMetricName as it's no longer needed since introduction of mdatagen (#11302)

💡 Enhancements 💡

• ocb: create docker images for OCB, per https://github.com/open-telemetry/opentelemetry-collector-releases/pull/671 (#5712) Adds standard Docker images for OCB to Dockerhub and GitHub, see hub.docker.com/r/otel/opentelemetry-collector-builder
• confighttp: Snappy compression to lazy read for memory efficiency (#11177)
• httpsprovider: Mark the httpsprovider as stable. (#11191)
• httpprovider: Mark the httpprovider as stable. (#11191)
• yamlprovider: Mark the yamlprovider as stable. (#11192)
• confmap: Allow using any YAML structure as a string when loading configuration including time.Time formats (#10659) Previously, fields with time.Time formats could not be used as strings in configurations

🧰 Bug fixes 🧰

• processorhelper: Fix data race condition, concurrent writes to the err variable, causes UB (Undefined Behavior) (#11350)
• cmd/builder: re-adds function to properly set and view version number of OpenTelemetry Collector Builder (ocb) binaries (#11208)
• pdata: Unmarshal Span and SpanLink flags from JSON (#11267)

v1.16.0/v0.110.0

🛑 Breaking changes 🛑

• processorhelper: Update incoming/outgoing metrics to a single metric with a otel.signal attributes. (#11144) The following metrics were added in the previous version

  • otelcol_processor_incoming_spans
  • otelcol_processor_outgoing_spans
  • otelcol_processor_incoming_metric_points
  • otelcol_processor_outgoing_metric_points
  • otelcol_processor_incoming_log_records
  • otelcol_processor_outgoing_log_records

  They are being replaced with the following to more closely align with OTEP 259:

  • otelcol_processor_incoming_items
  • otelcol_processor_outgoing_items

• processorhelper: Remove deprecated [Traces|Metrics|Logs]Inserted funcs (#11151)

• config: Mark UseLocalHostAsDefaultHostfeatureGate as stable (#11235)

🚩 Deprecations 🚩

• processorhelper: deprecate accepted/refused/dropped metrics (#11201) The following metrics are being deprecated as they were only used in a single processor:
  • otelcol_processor_accepted_log_records
  • otelcol_processor_accepted_metric_points
  • otelcol_processor_accepted_spans
  • otelcol_processor_dropped_log_records
  • otelcol_processor_dropped_metric_points
  • otelcol_processor_dropped_spans
  • otelcol_processor_refused_log_records
  • otelcol_processor_refused_metric_points
  • otelcol_processor_refused_spans

💡 Enhancements 💡

• pdata: Add support to MoveTo for Map, allow avoiding copies (#11175)
• mdatagen: Add stability field to telemetry metrics, allowing the generated description to include a stability string. (#11160)
• confignet: Mark module as Stable. (#9801)
• confmap/provider/envprovider: Support default values when env var is empty (#5228)
• mdatagen: mdatagen validateMetrics() support validate metrics in telemetry.metric (#10925)
• service/telemetry: Mark useOtelWithSDKConfigurationForInternalTelemetry as stable (#7532)
• mdatagen: Use cobra for the command, add version flag (#11196)

🧰 Bug fixes 🧰

• service: Ensure process telemetry is registered when internal telemetry is configured with readers instead of an address. (#11093)

• mdatagen: Fix incorrect generation of metric tests with boolean attributes. (#11169)

• otelcol: Fix the Windows Event Log configuration when running the Collector as a Windows service. (#5297, #11051)

• builder: Honor build_tags in config (#11156)

• builder: Fix version for providers in the default config (#11123)

• cmd/builder: Temporarily disable strict versioning checks (#11129, #11152) The strict versioning check may be enabled by default in a future version once all configuration providers are stabilized.

• confmap: Fix loading config of a component from a different source. (#11154) This issue only affected loading the whole component config, loading parts of a component config from a different source was working correctly.

v1.15.0/v0.109.0

🛑 Breaking changes 🛑

• scraperhelper: Remove deprecated ObsReport, ObsReportSettings, NewObsReport types/funcs (#11086)
• confmap: Remove stable confmap.strictlyTypedInput gate (#11008)
• confmap: Removes stable confmap.unifyEnvVarExpansion feature gate. (#11007)
• ballastextension: Removes the deprecated ballastextension (#10671)
• service: Removes stable service.disableOpenCensusBridge feature gate (#11009)

🚩 Deprecations 🚩

• processorhelper: These funcs are not used anywhere, marking them deprecated. (#11083)

🚀 New components 🚀

• extension/experimental/storage: Move extension/experimental/storage into a separate module (#11022)

💡 Enhancements 💡

• configtelemetry: Add guidelines for each level of component telemetry (#10286)

• service: move useOtelWithSDKConfigurationForInternalTelemetry gate to beta (#11091)

• service: implement a no-op tracer provider that doesn't propagate the context (#11026) The no-op tracer provider supported by the SDK incurs a memory cost of propagating the context no matter what. This is not needed if tracing is not enabled in the Collector. This implementation of the no-op tracer provider removes the need to allocate memory when tracing is disabled.

• envprovider: Mark module as stable (#10982)

• fileprovider: Mark module as stable (#10983)

• processor: Add incoming and outgoing counts for processors using processorhelper. (#10910) Any processor using the processorhelper package (this is most processors) will automatically report incoming and outgoing item counts. The new metrics are:

  • otelcol_processor_incoming_spans
  • otelcol_processor_outgoing_spans
  • otelcol_processor_incoming_metric_points
  • otelcol_processor_outgoing_metric_points
  • otelcol_processor_incoming_log_records
  • otelcol_processor_outgoing_log_records

🧰 Bug fixes 🧰

• configgrpc: Change the value of max_recv_msg_size_mib from uint64 to int to avoid a case where misconfiguration caused an integer overflow. (#10948)
• exporterqueue: Fix a bug in persistent queue that Offer can becomes deadlocked when queue is almost full (#11015)

v1.14.1/v0.108.1

🧰 Bug fixes 🧰

• mdatagen: Fix a missing import in the generated test file (#10969)

v1.14.0/v0.108.0

🛑 Breaking changes 🛑

• all: Added support for go1.23, bumped the minimum version to 1.22 (#10869)
• otelcol: Remove deprecated ConfmapProvider interface. (#10934)
• confmap: Mark confmap.strictlyTypedInput as stable (#10552)

💡 Enhancements 💡

• exporter/otlp: Add batching option to otlp exporter (#8122)
• builder: Add a --skip-new-go-module flag to skip creating a module in the output directory. (#9252)
• component: Add TelemetrySettings.LeveledMeterProvider func to replace MetricsLevel in the near future (#10931)
• mdatagen: Add LeveledMeter method to mdatagen (#10933)
• service: Adds level configuration option to service::telemetry::trace to allow users to disable the default TracerProvider (#10892) This replaces the feature gate service.noopTracerProvider introduced in v0.107.0
• componentstatus: Add new Reporter interface to define how to report a status via a component.Host implementation (#10852)
• mdatagen: support using a different github project in mdatagen README issues list (#10484)
• mdatagen: Updates mdatagen's usage to output a complete command line example, including the metadata.yaml file. (#10886)
• extension: Add ModuleInfo to extension.Settings to allow extensions to access component go module information. (#10876)
• confmap: Mark module as stable (#9379)

🧰 Bug fixes 🧰

• batchprocessor: Update units for internal telemetry (#10652)
• confmap: Fix bug where an unset env var used with a non-string field resulted in a panic (#10950)
• service: Fix memory leaks during service package shutdown (#9165)
• mdatagen: Update generated telemetry template to only include context import when there are async metrics. (#10883)
• mdatagen: Fixed bug in which setting SkipLifecycle & SkipShutdown to true would result in a generated file with an unused import confmaptest (#10866)
• confmap: Use string representation for field types where all primitive types are strings. (#10937)
• otelcol: Preserve internal representation when unmarshaling component configs (#10552)

v1.13.0/v0.107.0

🛑 Breaking changes 🛑

• service: Remove OpenCensus bridge completely, mark feature gate as stable. (#10414)
• confmap: Set the confmap.unifyEnvVarExpansion feature gate to Stable. Expansion of $FOO env vars is no longer supported. Use ${FOO} or ${env:FOO} instead. (#10508)
• service: Remove otelcol from Prometheus configuration. This means that any metric that isn't explicitly prefixed with otelcol_ no longer have that prefix. (#9759)

💡 Enhancements 💡

• mdatagen: export ScopeName in internal/metadata package (#10845) This can be used by components that need to set their scope name manually. Will save component owners from having to store a variable, which may diverge from the scope name used by the component for emitting its own telemetry.

• semconv: Add v1.26.0 semantic conventions package (#10249, #10829)

• mdatagen: Expose a setting on tests::host to set up your own host initialization code (#10765) Some receivers require a host that has additional capabilities such as exposing exporters. For those, we can expose a setting that allows them to place a different host in the generated code.

• confmap: Allow using any YAML structure as a string when loading configuration. (#10800) Previous to this change, slices could not be used as strings in configuration.

• ocb: migrate build and release of ocb binaries to opentelemetry-collector-releases repository (#10710) ocb binaries will now be released under open-telemetry/opentelemetry-collector-releases tagged as "cmd/builder/vX.XXX.X"

• semconv: Add semantic conventions version v1.27.0 (#10837)

• client: Mark module as stable. (#10775)

🧰 Bug fixes 🧰

• configtelemetry: Add 10s read header timeout on the configtelemetry Prometheus HTTP server. (#5699)

• service: Allow users to disable the tracer provider via the feature gate service.noopTracerProvider (#10858) The service is returning an instance of a SDK tracer provider regardless of whether there were any processors configured causing resources to be consumed unnecessarily.

• processorhelper: Fix processor metrics not being reported initially with 0 values. (#10855)

• service: Implement the temporality_preference setting for internal telemetry exported via OTLP (#10745)

• configauth: Fix unmarshaling of authentication in HTTP servers. (#10750)

• confmap: If loading an invalid YAML string through a provider, use it verbatim instead of erroring out. (#10759) This makes the ${env:ENV} syntax closer to how ${ENV} worked before unifying syntaxes.

• component: Allow component names of up to 1024 characters in length. (#10816)

• confmap: Remove original string representation if invalid. (#10787)

v0.106.1

🧰 Bug fixes 🧰

• configauth: Fix unmarshaling of authentication in HTTP servers. (#10750)

v0.106.0

🛑 Breaking changes 🛑

• service: Update all metrics to include otelcol_ prefix to ensure consistency across OTLP and Prometheus metrics (#9759) This change is marked as a breaking change as anyone that was using OTLP for metrics will see the new prefix which was not present before. Prometheus generated metrics remain unchanged.

• confighttp: Delete ClientConfig.CustomRoundTripper (#8627) Set (*http.Client).Transport on the *http.Client returned from ToClient to configure this.

• confmap: When passing configuration for a string field using any provider, use the verbatim string representation as the value. (#10605, #10405) This matches the behavior of ${ENV} syntax prior to the promotion of the confmap.unifyEnvVarExpansion feature gate to beta. It changes the behavior of the ${env:ENV} syntax with escaped strings.

• component: Adds restrictions on the character set for component.ID name. (#10673)

• processor/memorylimiter: The memory limiter processor will no longer account for ballast size. (#10696) If you are already using GOMEMLIMIT instead of the ballast extension this does not affect you.

• extension/memorylimiter: The memory limiter extension will no longer account for ballast size. (#10696) If you are already using GOMEMLIMIT instead of the ballast extension this does not affect you.

• service: The service will no longer be able to get a ballast size from the deprecated ballast extension. (#10696) If you are already using GOMEMLIMIT instead of the ballast extension this does not affect you.

🚀 New components 🚀

• client: Create a new go module go.opentelemetry.io/collector/client (#9804) This module contains generic representations of clients connecting to different receivers.

💡 Enhancements 💡

• exporterhelper: Add data_type attribute to otelcol_exporter_queue_size metric to report the type of data being processed. (#9943)
• confighttp: Add option to include query params in auth context (#4806)
• configgrpc: gRPC auth errors now return gRPC status code UNAUTHENTICATED (16) (#7646)
• httpprovider, httpsprovider: Validate URIs in HTTP and HTTPS providers before fetching. (#10468)

🧰 Bug fixes 🧰

• processorhelper: update units for internal telemetry (#10647)
• confmap: Increase the amount of recursion and URI expansions allowed in a single line (#10712)
• exporterhelper: There is no guarantee that after the exporterhelper sends the plog/pmetric/ptrace data downstream that the data won't be mutated in some way. (e.g by the batch_sender) This mutation could result in the proceeding call to req.ItemsCount() to provide inaccurate information to be logged. (#10033)
• exporterhelper: Update units for internal telemetry (#10648)
• receiverhelper: Update units for internal telemetry (#10650)
• scraperhelper: Update units for internal telemetry (#10649)
• service: Use Command/Version to populate service name/version attributes (#10644)

v1.12.0/v0.105.0

🛑 Breaking changes 🛑

• service: add service.disableOpenCensusBridge feature gate which is enabled by default to remove the dependency on OpenCensus (#10414)
• confmap: Promote confmap.strictlyTypedInput feature gate to beta. (#10552) This feature gate changes the following:
  • Configurations relying on the implicit type casting behaviors listed on #9532 will start to fail.
  • Configurations using URI expansion (i.e. field: ${env:ENV}) for string-typed fields will use the value passed in ENV verbatim without intermediate type casting.

💡 Enhancements 💡

• configtls: Mark module as stable. (#9377)
• confmap: Remove extra closing parenthesis in sub-config error (#10480)
• configgrpc: Update the default load balancer strategy to round_robin (#10319) To restore the behavior that was previously the default, set balancer_name to pick_first.
• cmd/builder: Add go module info the builder generated code. (#10570)
• otelcol: Add go module to components subcommand. (#10570)
• confmap: Add explanation to errors related to confmap.strictlyTypedInput feature gate. (#9532)
• confmap: Allow using map[string]any values in string interpolation (#10605)

🧰 Bug fixes 🧰

• builder: provide context when a module in the config is missing its gomod value (#10474)
• confmap: Fixes issue where confmap could not escape $$ when confmap.unifyEnvVarExpansion is enabled. (#10560)
• mdatagen: fix generated comp test for extensions and unused imports in templates (#10477)
• otlpreceiver: Fixes a bug where the otlp receiver's http response was not properly translating grpc error codes to http status codes. (#10574)
• exporterhelper: Fix incorrect deduplication of otelcol_exporter_queue_size and otelcol_exporter_queue_capacity metrics if multiple exporters are used. (#10444)
• service/telemetry: Add ability to set service.name for spans emitted by the Collector (#10489)
• internal/localhostgate: Correctly log info message when component.UseLocalHostAsDefaultHost is enabled (#8510)

v1.11.0/v0.104.0

This release includes 2 very important breaking changes.

1. The otlpreceiver will now use localhost by default instead of 0.0.0.0. This may break the receiver in containerized environments like Kubernetes. If you depend on 0.0.0.0 disable the component.UseLocalHostAsDefaultHost feature gate or explicitly set the endpoint to 0.0.0.0.
2. Expansion of BASH-style environment variables, such as $FOO will no longer be supported by default. If you depend on this syntax, disable the confmap.unifyEnvVarExpansion feature gate, but know that the feature will be removed in the future in favor of ${env:FOO}.

🛑 Breaking changes 🛑

• filter: Remove deprecated filter.CombinedFilter (#10348)
• otelcol: By default, otelcol.NewCommand and otelcol.NewCommandMustSetProvider will set the DefaultScheme to env. (#10435)
• expandconverter: By default expandconverter will now error if it is about to expand $FOO syntax. Update configuration to use ${env:FOO} instead or disable the confmap.unifyEnvVarExpansion feature gate. (#10435)
• otlpreceiver: Switch to localhost as the default for all endpoints. (#8510) Disable the component.UseLocalHostAsDefaultHost feature gate to temporarily get the previous default.

💡 Enhancements 💡

• confighttp: Add support for cookies in HTTP clients with cookies::enabled. (#10175) The method confighttp.ToClient will return a client with a cookiejar.Jar which will reuse cookies from server responses in subsequent requests.
• exporter/debug: In normal verbosity, display one line of text for each telemetry record (log, data point, span) (#7806)
• exporter/debug: Add option use_internal_logger (#10226)
• configretry: Mark module as stable. (#10279)
• debugexporter: Print Span.TraceState() when present. (#10421) Enables viewing sampling threshold information (as by OTEP 235 samplers).
• processorhelper: Add "inserted" metrics for processors. (#10353) This includes the following metrics for processors:
  • processor_inserted_spans
  • processor_inserted_metric_points
  • processor_inserted_log_records

🧰 Bug fixes 🧰

• otlpexporter: Update validation to support both dns:// and dns:/// (#10449)
• service: Fixed a bug that caused otel-collector to fail to start with ipv6 metrics endpoint service telemetry. (#10011)

v1.10.0/v0.103.0

🛑 Breaking changes 🛑

• exporter/debug: Disable sampling by default (#9921) To restore the behavior that was previously the default, set sampling_thereafter to 500.

💡 Enhancements 💡

• cmd/builder: Allow setting otelcol.CollectorSettings.ResolverSettings.DefaultScheme via the builder's conf_resolver.default_uri_scheme configuration option (#10296)

• mdatagen: add support for optional internal metrics (#10316)

• otelcol/expandconverter: Add confmap.unifyEnvVarExpansion feature gate to allow enabling Collector/Configuration SIG environment variable expansion rules. (#10391) When enabled, this feature gate will:

  • Disable expansion of BASH-style env vars ($FOO)
  • ${FOO} will be expanded as if it was `${env:FOO} See https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/rfcs/env-vars.md for more details.

• confmap: Add confmap.unifyEnvVarExpansion feature gate to allow enabling Collector/Configuration SIG environment variable expansion rules. (#10259) When enabled, this feature gate will:

  • Disable expansion of BASH-style env vars ($FOO)
  • ${FOO} will be expanded as if it was `${env:FOO} See https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/rfcs/env-vars.md for more details.

• confighttp: Allow the compression list to be overridden (#10295) Allows Collector administrators to control which compression algorithms to enable for HTTP-based receivers.

• configgrpc: Revert the zstd compression for gRPC to the third-party library we were using previously. (#10394) We switched back to our compression logic for zstd when a CVE was found on the third-party library we were using. Now that the third-party library has been fixed, we can revert to that one. For end-users, this has no practical effect. The reproducers for the CVE were tested against this patch, confirming we are not reintroducing the bugs.

• confmap: Adds alpha confmap.strictlyTypedInput feature gate that enables strict type checks during configuration resolution (#9532) When enabled, the configuration resolution system will:

  • Stop doing most kinds of implicit type casting when resolving configuration values
  • Use the original string representation of configuration values if the ${} syntax is used in inline position

• confighttp: Use confighttp.ServerConfig as part of zpagesextension. See server configuration options. (#9368)

🧰 Bug fixes 🧰

• exporterhelper: Fix potential deadlock in the batch sender (#10315)
• expandconverter: Fix bug where an warning was logged incorrectly. (#10392)
• exporterhelper: Fix a bug when the retry and timeout logic was not applied with enabled batching. (#10166)
• exporterhelper: Fix a bug where an unstarted batch_sender exporter hangs on shutdown (#10306)
• exporterhelper: Fix small batch due to unfavorable goroutine scheduling in batch sender (#9952)
• confmap: Fix issue where structs with only yaml tags were not marshaled correctly. (#10282)

v0.102.1

This release addresses GHSA-c74f-6mfw-mm4v for configgrpc.

🧰 Bug fixes 🧰

• configrpc: Use own compressors for zstd. Before this change, the zstd compressor we used didn't respect the max message size. This addresses GHSA-c74f-6mfw-mm4v for configgrpc (#10323)

v1.9.0/v0.102.0

This release addresses GHSA-c74f-6mfw-mm4v for confighttp.

🛑 Breaking changes 🛑

• envprovider: Restricts Environment Variable names. Environment variable names must now be ASCII only and start with a letter or an underscore, and can only contain underscores, letters, or numbers. (#9531)
• confighttp: Apply MaxRequestBodySize to the result of a decompressed body. This addresses GHSA-c74f-6mfw-mm4v for confighttp (#10289) When using compressed payloads, the Collector would verify only the size of the compressed payload. This change applies the same restriction to the decompressed content. As a security measure, a limit of 20 MiB was added, which makes this a breaking change. For most clients, this shouldn't be a problem, but if you often have payloads that decompress to more than 20 MiB, you might want to either configure your client to send smaller batches (recommended), or increase the limit using the MaxRequestBodySize option.

💡 Enhancements 💡

• mdatagen: auto-generate utilities to test component telemetry (#19783)
• mdatagen: support setting an AttributeSet for async instruments (#9674)
• mdatagen: support using telemetry level in telemetry builder (#10234) This allows components to set the minimum level needed for them to produce telemetry. By default, this is set to configtelemetry.LevelBasic. If the telemetry level is below that minimum level, then the noop meter is used for metrics.
• mdatagen: add support for bucket boundaries for histograms (#10218)
• releases: add documentation in how to verify the image signatures using cosign (#9610)

🧰 Bug fixes 🧰

• batchprocessor: ensure attributes are set on cardinality metadata metric (#9674)
• batchprocessor: Fixing processor_batch_metadata_cardinality which was broken in v0.101.0 (#10231)
• batchprocessor: respect telemetry level for all metrics (#10234)
• exporterhelper: Fix potential deadlocks in BatcherSender shutdown (#10255)

v1.8.0/v0.101.0

💡 Enhancements 💡

• mdatagen: generate documentation for internal telemetry (#10170)

• mdatagen: add ability to use metadata.yaml to automatically generate instruments for components (#10054) The telemetry section in metadata.yaml is used to generate instruments for components to measure telemetry about themselves.

• confmap: Allow Converters to write logs during startup (#10135)

• otelcol: Enable logging during configuration resolution (#10056)

🧰 Bug fixes 🧰

• mdatagen: Run package tests when goleak is skipped (#10125)

v1.7.0/v0.100.0

🛑 Breaking changes 🛑

• service: The validate sub-command no longer validates that each pipeline's type is the same as its component types (#10031)

💡 Enhancements 💡

• semconv: Add support for v1.25.0 semantic convention (#10072)
• builder: remove the need to go get a module to address ambiguous import paths (#10015)
• pmetric: Support parsing metric.metadata from OTLP JSON. (#10026)

🧰 Bug fixes 🧰

• exporterhelper: Fix enabled config option for batch sender (#10076)

v1.6.0/v0.99.0

🛑 Breaking changes 🛑

• builder: Add strict version checking when using the builder. Add the temporary flag --skip-strict-versioning for skipping this check. (#9896) Strict version checking will error on major and minor version mismatches between the otelcol_version configured and the builder version or versions in the go.mod. This check can be temporarily disabled by using the --skip-strict-versioning flag. This flag will be removed in a future minor version.

• telemetry: Distributed internal metrics across different levels. (#7890) The internal metrics levels are updated along with reported metrics:

  • The default level is changed from basic to normal, which can be overridden with service::telemetry::metrics::level configuration.
  • Batch processor metrics are updated to be reported starting from normal level:
    • processor_batch_batch_send_size
    • processor_batch_metadata_cardinality
    • processor_batch_timeout_trigger_send
    • processor_batch_size_trigger_send
  • GRPC/HTTP server and client metrics are updated to be reported starting from detailed level:
    • http.client.* metrics
    • http.server.* metrics
    • rpc.server.* metrics
    • rpc.client.* metrics

💡 Enhancements 💡

• confighttp: Disable concurrency in zstd compression (#8216)

• cmd/builder: Allow configuring confmap.Providers in the builder. (#4759) If no providers are specified, the defaults are used. The default providers are: env, file, http, https, and yaml.

  To configure providers, use the providers key in your OCB build manifest with a list of Go modules for your providers. The modules will work the same as other Collector components.

• mdatagen: enable goleak tests by default via mdatagen (#9959)

• cmd/mdatagen: support excluding some metrics based on string and regexes in resource_attributes (#9661)

• cmd/mdatagen: Generate config and factory tests covering their requirements. (#9940) The tests are moved from cmd/builder.

• confmap: Add ProviderSettings, ConverterSettings, ProviderFactories, and ConverterFactories fields to confmap.ResolverSettings (#9516) This allows configuring providers and converters, which are instantiated by NewResolver using the given factories.

🧰 Bug fixes 🧰

• exporter/otlp: Allow DNS scheme to be used in endpoint (#4274)
• service: fix record sampler configuration (#9968)
• service: ensure the tracer provider is configured via go.opentelemetry.io/contrib/config (#9967)
• otlphttpexporter: Fixes a bug that was preventing the otlp http exporter from propagating status. (#9892)
• confmap: Fix decoding negative configuration values into uints (#9060)

v1.5.0/v0.98.0

🛑 Breaking changes 🛑

• service: emit internal collector metrics with _ instead of / with OTLP export (#9774) This is addressing an issue w/ the names of the metrics generated by the Collector for its internal metrics. Note that this change only impacts users that emit telemetry using OTLP, which is currently still in experimental support. The prometheus metrics already replaced / with _ and they will do the same with _.

💡 Enhancements 💡

• mdatagen: Adds unsupported platforms to the README header (#9794)
• confmap: Clarify the use of embedded structs to make unmarshaling composable (#7101)
• nopexporter: Promote the nopexporter to beta (#7316)
• nopreceiver: Promote the nopreceiver to beta (#7316)
• otlpexporter: Checks for port in the config validation for the otlpexporter (#9505)
• service: Validate pipeline type against component types (#8007)

🧰 Bug fixes 🧰

• configtls: Fix issue where IncludeSystemCACertsPool was not consistently used between ServerConfig and ClientConfig. (#9835)
• component: Fix issue where the components command wasn't properly printing the component type. (#9856)
• otelcol: Fix issue where the validate command wasn't properly printing valid component type. (#9866)
• receiver/otlp: Fix bug where the otlp receiver did not properly respond with a retryable error code when possible for http (#9357)

v1.4.0/v0.97.0

🛑 Breaking changes 🛑

• telemetry: Remove telemetry.useOtelForInternalMetrics stable feature gate (#9752)

🚀 New components 🚀

• exporter/nop: Add the nopexporter to serve as a placeholder exporter in a pipeline (#7316) This is primarily useful for starting the Collector with only extensions enabled or to test Collector pipeline throughput.

• receiver/nop: Add the nopreceiver to serve as a placeholder receiver in a pipeline (#7316) This is primarily useful for starting the Collector with only extensions enabled.

💡 Enhancements 💡

• configtls: Validates TLS min_version and max_version (#9475) Introduces Validate() method in TLSSetting.

• configcompression: Mark module as Stable. (#9571)

• cmd/mdatagen: Use go package name for the scope name by default and add an option to provide the scope name in metadata.yaml. (#9693)

• cmd/mdatagen: Generate the lifecycle tests for components by default. (#9683) It's encouraged to have lifecycle tests for all components enabled, but they can be disabled if needed in metadata.yaml with skip_lifecycle: true and skip_shutdown: true under tests section.

• cmd/mdatagen: optimize the mdatagen for the case like batchprocessor which use a common struct to implement consumer.Traces, consumer.Metrics, consumer.Logs in the meantime. (#9688)

🧰 Bug fixes 🧰

• exporterhelper: Fix persistent queue size backup on reads. (#9740)
• processor/batch: Prevent starting unnecessary goroutines. (#9739)
• otlphttpexporter: prevent error on empty response body when content type is application/json (#9666)
• confmap: confmap honors Unmarshal methods on config embedded structs. (#6671)
• otelcol: Respect telemetry configuration when running as a Windows service (#5300)

v1.3.0/v0.96.0

🛑 Breaking changes 🛑

• configgrpc: Remove deprecated GRPCClientSettings, GRPCServerSettings, and ServerConfig.ToListenerContext. (#9616)
• confighttp: Remove deprecated HTTPClientSettings, NewDefaultHTTPClientSettings, and CORSSettings. (#9625)
• confignet: Removes deprecated NetAddr and TCPAddr (#9614)

💡 Enhancements 💡

• configtls: Add include_system_ca_certs_pool to configtls, allowing to load system certs and additional custom certs. (#7774)
• otelcol: Add ConfigProviderSettings to CollectorSettings (#4759) This allows passing a custom list of confmap.Providers to otelcol.NewCommand.
• pdata: Update to OTLP v1.1.0 (#9587) Introduces Span and SpanLink flags.
• confmap: Update mapstructure to use a maintained fork, github.com/go-viper/mapstructure/v2. (#9634) See https://github.com/mitchellh/mapstructure/issues/349 for context.

🧰 Bug fixes 🧰

• configretry: Allow max_elapsed_time to be set to 0 for indefinite retries (#9641)
• client: Make Metadata.Get thread safe (#9595)

v1.2.0/v0.95.0

🛑 Breaking changes 🛑

• all: scope name for all generated Meter/Tracer funcs now includes full package name (#9494)

💡 Enhancements 💡

• confighttp: Adds support for Snappy decompression of HTTP requests. (#7632)
• configretry: Validate max_elapsed_time, ensure it is larger than max_interval and initial_interval respectively. (#9489)
• configopaque: Mark module as stable (#9167)
• otlphttpexporter: Add support for json content encoding when exporting telemetry (#6945)
• confmap/converter/expandconverter, confmap/provider/envprovider, confmap/provider/fileprovider, confmap/provider/httpprovider, confmap/provider/httpsprovider, confmap/provider/yamlprovider: Split confmap.Converter and confmap.Provider implementation packages out of confmap. (#4759, #9460)

v1.1.0/v0.94.0

🛑 Breaking changes 🛑

• receiver/otlp: Update gRPC code from codes.InvalidArgument to codes.Internal when a permanent error doesn't contain a gRPC status (#9415)

🚩 Deprecations 🚩

• configgrpc: Deprecate GRPCClientSettings, use ClientConfig instead (#6767)

💡 Enhancements 💡

• mdatagen: Add a generated test that checks the config struct using componenttest.CheckConfigStruct (#9438)

• component: Add component.UseLocalHostAsDefaultHost feature gate that changes default endpoints from 0.0.0.0 to localhost (#8510) The only component in this repository affected by this is the OTLP receiver.

• confighttp: Add support of Host header (#9395)

• mdatagen: Remove use of ReportFatalError in generated tests (#9439)

🧰 Bug fixes 🧰

• service: fix opencensus bridge configuration in periodic readers (#9361)
• otlpreceiver: Fix goroutine leak when GRPC server is started but HTTP server is unsuccessful (#9165)
• otlpexporter: PartialSuccess is treated as success, logged as warning. (#9243)

v0.93.0

🛑 Breaking changes 🛑

• exporterhelper: remove deprecated exporterhelper.RetrySettings and exporterhelper.NewDefaultRetrySettings (#9256)
• configopaque: configopaque.String implements fmt.Stringer and fmt.GoStringer, outputting [REDACTED] when formatted with the %s, %q or %#v verbs(#9213) This may break applications that rely on the previous behavior of opaque strings withfmt.Sprintfto e.g. build URLs or headers. Explicitly cast the opaque string to a string before using it infmt.Sprintf` to restore the previous behavior.

🚀 New components 🚀

• extension/memory_limiter: Introduce a memory_limiter extension which receivers can use to reject incoming requests when collector doesn't have enough memory (#8632) The extension has the same configuration interface and behavior as the existing memory_limiter processor, which potentially can be deprecated and removed in the future

💡 Enhancements 💡

• configtls: add cipher_suites to configtls. (#8105) Users can specify a list of cipher suites to pick from. If left blank, a safe default list is used.

• service: mark telemetry.useOtelForInternalMetrics as stable (#816)

• exporters: Cleanup log messages for export failures (#9219)

  1. Ensure an error message is logged every time and only once when data is dropped/rejected due to export failure.
  2. Update the wording. Specifically, don't use "dropped" term when an error is reported back to the pipeline. Keep the "dropped" wording for failures happened after the enabled queue.
  3. Properly report any error reported by a queue. For example, a persistent storage error must be reported as a storage error, not as "queue overflow".

🧰 Bug fixes 🧰

• configgrpc: Update dependency to address a potential crash in the grpc instrumentation (#9296)
• otlpreceiver: Ensure OTLP receiver handles consume errors correctly (#4335) Make sure OTLP receiver returns correct status code and follows the receiver contract (gRPC)
• zpagesextension: Remove mention of rpcz page from zpages extension (#9328)

v1.0.1/v0.92.0

🛑 Breaking changes 🛑

• exporters/sending_queue: Do not re-enqueue failed batches, rely on the retry_on_failure strategy instead. (#8382) The current re-enqueuing behavior is not obvious and cannot be configured. It takes place only for persistent queue and only if retry_on_failure::enabled=true even if retry_on_failure is a setting for a different backoff retry strategy. This change removes the re-enqueuing behavior. Consider increasing retry_on_failure::max_elapsed_time to reduce chances of data loss or set it to 0 to keep retrying until requests succeed.

• confmap: Make the option WithErrorUnused enabled by default when unmarshaling configuration (#7102) The option WithErrorUnused is now enabled by default, and a new option WithIgnoreUnused is introduced to ignore errors about unused fields.

• status: Deprecate ReportComponentStatus in favor of ReportStatus. This new function does not return an error. (#9148)

🚩 Deprecations 🚩

• connectortest: Deprecate connectortest.New[Metrics|Logs|Traces]Router in favour of connector.New[Metrics|Logs|Traces]Router (#9095)

• exporterhelper: Deprecate exporterhelper.RetrySettings in favor of configretry.BackOffConfig (#9091)

• extension/ballast: Deprecate memory_ballast extension. (#8343) Use GOMEMLIMIT environment variable instead.

• connector: Deprecate [Metrics|Logs|Traces]Router in favour of [Metrics|Logs|Traces]RouterAndConsumer (#9095)

💡 Enhancements 💡

• exporterhelper: Add RetrySettings validation function (#9089) Validate that time.Duration, multiplier values in configretry are non-negative, and randomization_factor is between 0 and 1

• service: Enable telemetry.useOtelForInternalMetrics by updating the flag to beta (#7454) The metrics generated should be consistent with the metrics generated previously with OpenCensus. Users can disable the behaviour by setting --feature-gates -telemetry.useOtelForInternalMetrics at collector start.

• mdatagen: move component from contrib to core (#9172)

• semconv: Generated Semantic conventions 1.22.0. (#8686)

• confignet: Add dialer_timeout config option. (#9066)

• processor/memory_limiter: Update config validation errors (#9059)

  • Fix names of the config fields that are validated in the error messages
  • Move the validation from start to the initialization phrase

• exporterhelper: Add config Validate for TimeoutSettings (#9104)

🧰 Bug fixes 🧰

• memorylimiterprocessor: Fixed leaking goroutines from memorylimiterprocessor (#9099)
• cmd/otelcorecol: Fix the code detecting if the collector is running as a service on Windows. (#7350) Removed the NO_WINDOWS_SERVICE environment variable given it is not needed anymore.
• otlpexporter: remove dependency of otlphttpreceiver on otlpexporter (#6454)

v0.91.0

💡 Enhancements 💡

• statusreporting: Automates status reporting upon the completion of component.Start(). (#7682)
• service: add resource attributes as labels to otel metrics to ensures backwards compatibility with OpenCensus metrics. (#9029)
• semconv: Generated Semantic conventions 1.21. (#9056)
• config/confighttp: Exposes http/2 transport settings to enable health check and workaround golang http/2 issue https://github.com/golang/go/issues/59690 (#9022)
• cmd/builder: running builder version on binaries installed with go install will output the version specified at the suffix. (#8770)

🧰 Bug fixes 🧰

• exporterhelper: fix missed metric aggregations (#9048) This ensures that context cancellation in the exporter doesn't interfere with metric aggregation. The OTel SDK currently returns if there's an error in the context used in Add. This means that if there's a cancelled context in an export, the metrics are now recorded.

• service: Fix bug where MutatesData would not correctly propagate through connectors. (#9053)

v0.90.1

🧰 Bug fixes 🧰

• exporterhelper: Remove noisy log (#9017)

v1.0.0/v0.90.0

🛑 Breaking changes 🛑

• service: To remain backwards compatible w/ the metrics generated today, otel generated metrics will be generated without the _total suffix (#7454)
• service: use WithNamespace instead of WrapRegistererWithPrefix (#8988) Using this functionality in the otel prom exporter fixes a bug where the target_info was prefixed as otelcol_target_info previously.

💡 Enhancements 💡

• exporter/debug: Change default verbosity from normal to basic (#8844) This change has currently no effect, as basic and normal verbosity share the same behavior. This might change in the future though, with the normal verbosity being more verbose than it currently is (see https://github.com/open-telemetry/opentelemetry-collector/issues/7806). This is why we are changing the default to basic, which is expected to stay at the current level of verbosity (one line per batch).
• exporterhelper: Fix shutdown logic in persistent queue to not require consumers to be closed first (#8899)
• confighttp: Support proxy configuration field in all exporters that support confighttp (#5761)

🧰 Bug fixes 🧰

• exporterhelper: Fix invalid write index updates in the persistent queue (#8115)

v1.0.0-rcv0018/v0.89.0

💡 Enhancements 💡

• builder: remove replace statement in builder template (#8763)
• service/extensions: Allow extensions to declare dependencies on other extensions and guarantee start/stop/notification order accordingly. (#8732)
• exporterhelper: Log export errors when retry is not used by the component. (#8791)
• cmd/builder: Add --verbose flag to log go subcommands output that are ran as part of a build (#8715)
• exporterhelper: Remove internal goroutine loop for persistent queue (#8868)
• exporterhelper: Simplify usage of storage client, avoid unnecessary allocations (#8830)
• exporterhelper: Simplify logic in boundedMemoryQueue, use channels len/cap (#8829)

🧰 Bug fixes 🧰

• exporterhelper: fix bug with queue size and capacity metrics (#8682)
• obsreporttest: split handler for otel vs oc test path in TestTelemetry (#8758)
• builder: Fix featuregate late initialization (#4967)
• service: Fix connector logger zap kind key (#8878)

v1.0.0-rcv0017/v0.88.0

💡 Enhancements 💡

• fanoutconsumer: Enable runtime assertions to catch incorrect pdata mutations in the components claiming as non-mutating pdata. (#6794) This change enables the runtime assertions to catch unintentional pdata mutations in components that are claimed as non-mutating pdata. Without these assertions, runtime errors may still occur, but thrown by unrelated components, making it very difficult to troubleshoot.

🧰 Bug fixes 🧰

• exporterhelper: make enqueue failures available for otel metrics (#8673)
• exporterhelper: Fix nil pointer dereference when stopping persistent queue after a start encountered an error (#8718)
• cmd/builder: Fix ocb ignoring otelcol_version when set to v0.86.0 or later (#8692)

v1.0.0-rcv0016/v0.87.0

💡 Enhancements 💡

• service/telemetry exporter/exporterhelper: Enable sampling logging by default and apply it to all components. (#8134) The sampled logger configuration can be disabled easily by setting the service::telemetry::logs::sampling::enabled to false.
• core: Adds the ability for components to report status and for extensions to subscribe to status events by implementing an optional StatusWatcher interface. (#7682)

🧰 Bug fixes 🧰

• telemetry: remove workaround to ignore errors when an instrument includes a / (#8346)

v1.0.0-rcv0015/v0.86.0

🚩 Deprecations 🚩

• loggingexporter: Mark the logging exporter as deprecated, in favour of debug exporter (#7769)

🚀 New components 🚀

• debugexporter: Add debug exporter, which replaces the logging exporter (#7769)

💡 Enhancements 💡

• featuregate: List valid feature gates when failing to load invalid gate (#8505)
• supported platforms: Add linux/s390x architecture to cross build tests in CI (#8213)

🧰 Bug fixes 🧰

• builder: fix setting dist.* keys from env (#8239)
• configtls: fix incorrect use of fsnotify (#8438)

v0.85.0

💡 Enhancements 💡

• components command: The "components" command now lists the component's stability levels. (#8289) Note that the format of this output is NOT stable and can change between versions.
• confighttp: Add option to disable HTTP keep-alives (#8260)

🧰 Bug fixes 🧰

• confmap: fix bugs of unmarshalling slice values (#4001)
• exporterhelper: Stop logging error messages suggesting user to enable retry_on_failure or sending_queue when they are not available. (#8369)

v0.84.0

💡 Enhancements 💡

• loggingexporter: Adds exemplars logging to the logging exporter when detailed verbosity level is set. (#7912)
• configgrpc: Allow any registered gRPC load balancer name to be used. (#8262)
• service: add OTLP export for internal traces (#8106)
• configgrpc: Add support for :authority pseudo-header in grpc client (#8228)

🧰 Bug fixes 🧰

• otlphttpexporter: Fix the handling of the HTTP response to ignore responses not encoded as protobuf (#8263)

v0.83.0

💡 Enhancements 💡

• extension: Add optional ConfigWatcher interface (#6596) Extensions implementing this interface will be notified of the Collector's effective config.

• otelcol: Add optional ConfmapProvider interface for Config Providers (#6596) This allows providing the Collector's configuration as a marshaled confmap.Conf object from a ConfigProvider

• service: Add CollectorConf field to service.Settings (#6596) This field is intended to be used by the Collector to pass its effective configuration to the service.

v1.0.0-rcv0014/v0.82.0

🛑 Breaking changes 🛑

• service: Enable configuration of collector telemetry through prometheus reader (#7641) These options are still experimental. To enable them, users must enable both telemetry.useOtelForInternalMetrics and telemetry.useOtelWithSDKConfigurationForInternalTelemetry feature gates. This change updates metric_readers to readers to align with the configuration working group.

• service: Remove experimental metric_readers.args and metric_reader.type config options. (#7641) These options were experimental and did not have any effect on the configuration of the collector's telemetry. The change aligns the configuration with the latest iteration of the configuration json schema, which may still change in the future.

💡 Enhancements 💡

• service: Add support for exporting internal metrics to the console (#7641) Internal collector metrics can now be exported to the console using the otel-go stdout exporter.

• service: Add support for interval and timeout configuration in periodic reader (#7641)

• service: Add support for span processor configuration for internal traces (#8106) These options are still experimental. To enable them, users must enable both telemetry.useOtelForInternalMetrics and telemetry.useOtelWithSDKConfigurationForInternalTelemetry feature gates.

• service: Add support for OTLP export for internal metrics (#7641) Internal collector metrics can now be exported via OTLP using the otel-go otlpgrpc and otlphttp exporters.

• scraperhelper: Adding optional timeout field to scrapers (#7951)

• otlpreceiver: Add http url paths per signal config options to otlpreceiver (#7511)

• otlphttpexporter: Add support for trailing slash in endpoint URL (#8084) URLs like http://localhost:4318/ will now be treated as if they were http://localhost:4318

🧰 Bug fixes 🧰

• connector: Fix connector validation (#7892) Validation of connectors was too aggressive such that a connector that was used in any combination of unsupported roles would fail. Instead, validation should pass as long as each use of the connector has a supported corresponding use.

v0.81.0

🛑 Breaking changes 🛑

• service: Remove 'service.connectors' featuregate (#7952)

💡 Enhancements 💡

• HTTPServerSettings: Add zstd support to HTTPServerSettings (#7927) This adds ability to decompress zstd-compressed HTTP requests to| all receivers that use HTTPServerSettings.
• cmd/builder: Add "--skip-generate" option to make builder skip source generation (#7541)
• confighttp: Add support for additional content decoders via WithDecoder server option (#7977)
• connectortest: Add helpers to aid the construction of connector.TracesRouter, connector.MetricsRouter, and connector.LogsRouter instances to connectortest. (#7672)
• confighttp: Add response_headers configuration option on HTTPServerSettings. It allows for additional headers to be attached to each HTTP response sent to the client (#7328)
• otlpreceiver, otlphttpexporter, otlpexporter, configgrpc: Upgrade github.com/mostynb/go-grpc-compression and switch to nonclobbering imports (#7920) consumers of this library should not have their grpc codecs overridden
• otlphttpexporter: Treat partial success responses as errors (#6686)

🧰 Bug fixes 🧰

• HTTPServerSettings: Ensure requests with unsupported Content-Encoding return HTTP 400 Bad Request (#7927)

v1.0.0-rcv0013/v0.80.0

🚩 Deprecations 🚩

• service: Deprecate service.PipelineConfig in favor of pipelines.Config. (#7854)

💡 Enhancements 💡

• service: Added dry run flag to validate config file without running collector. (#4671)
• configtls: Allow TLS Settings to be provided in memory in addition to filepath. (#7313)
• connector: Updates the way connector nodes are built to always pass a fanoutconsumer to their factory functions. (#7672, #7673)
• otlp: update otlp protos to v0.20.0 (#7839)
• configauth: Split config/configauth into its own module (#7895)
• configgrpc, confighttp, config/internal: Split confighttp, configgrpc, and config/internal into separate modules (#7895)
• confignet: Split config/confignet into its own module (#7895)
• configopaque: Split config/configopaque into its own module (#7895)
• configtelemetry: Split config/configtelemetry into its own module (#7895)
• configtls: Split config/configtls into its own module (#7895)
• configcompression: Split config/configcompression into its own module (#7895)
• extension: Splitting extension/auth into separate module (#7054)
• connector: Split connector into its own module (#7895)
• extension: split extension module into its own module (#7306)
• processor: Split the processor into its own go module (#7307)
• confighttp: Avoid re-creating the compressors for every request. (#7859)
• otlpexporter: Treat partial success responses as errors (#6686)
• service/pipelines: Add pipelines.Config to remove duplicate of the pipelines configuration (#7854)

v0.79.0

🚩 Deprecations 🚩

• component: Deprecate Host.GetExporters function (#7370)

💡 Enhancements 💡

• otelcol: Add connectors to output of the components command (#7809)

• scraperhelper: Will start calling scrapers on component start. (#7635) The change allows scrapes to perform their initial scrape on component start and provide an initial delay. This means that scrapes will be delayed by initial_delay before first scrape and then run on collection_interval for each consecutive interval.

• batchprocessor: Change multiBatcher to use sync.Map, avoid global lock on fast path (#7714)

🧰 Bug fixes 🧰

• connectors: When replicating data to connectors, consider whether the next pipeline will mutate data (#7776)

v0.78.2

🧰 Bug fixes 🧰

• batchprocessor: Fix return error for batch processor when consuming Metrics and Logs (#7711)

v0.78.1

🧰 Bug fixes 🧰

• batchprocessor: Fix start/stop logic for batch processor (#7708)

v1.0.0-rcv0012/v0.78.0

💡 Enhancements 💡

• batchprocessor: Add support for batching by metadata keys. (#4544)
• service: Add feature gate telemetry.useOtelWithSDKConfigurationForInternalTelemetry that will add support for configuring the export of internal telemetry to additional destinations in future releases (#7641)
• forwardconnector: Promote to beta (#7579)
• featuregate: Promote featuregate to the stable module-set (#7693)

🧰 Bug fixes 🧰

• featuregate: Fix issue where StageDeprecated was not usable (#7586)
• exporterhelper: Fix persistent storage behaviour with no available space on device (#7198)

v0.77.0

🛑 Breaking changes 🛑

• exporterhelper: Reduce the default queue size to 1000 from 5000 (#7359) Affects any exporter which enables the queue by default and doesn't set its own default size. For example: otlphttp.

• featuregate: Remove deprecated RemovalVersion and WithRegisterRemovalVersion functions. (#7587)

💡 Enhancements 💡

• service: Adds ResourceAttributes map to telemetry settings and thus CreateSettings. (#6599)
• service: Allows users to disable high cardinality OTLP attributes behind a feature flag. (#7517)
• featuregate: Finalize purpose of toVersion. Allow stable gates to be explicitly set to true, but produce a warning log. (#7626)

🧰 Bug fixes 🧰

• config/confighttp: Ensure Auth RoundTripper follows compression/header changes (#7574)
• otlpreceiver: do not reject requests having 'content-type' header with optional parameters (#7452)

v1.0.0-rcv0011/v0.76.1

🛑 Breaking changes 🛑

• confmap: Using an Invalid Scheme in a URI will throw an error. (#7504)

🚩 Deprecations 🚩

• featuregate: Deprecate Gate.RemovalVersion and WithRegisterRemovalVersion in favor of ToVersion. (#7043)

💡 Enhancements 💡

• batchprocessor: Support zero timeout. (#7508) This allows the batchprocessor to limit request sizes without introducing delay in a pipeline, to act only as a splitter.

• service: use the otel opencensus bridge when telemetry.useOtelForInternalMetrics is enabled (#7483)

• connector: Mark 'service.connectors' featuregate as stable (#2336)

• featuregate: Add a new Deprecated stage for feature gates, when features are abandoned. (#7043)

• loggingexporter: Show more counters in not detailed verbosity (#7461) The logging exporter now shows more counters when the verbosity is not detailed. The following numbers are added:

  • Number of resource logs
  • Number of resource spans
  • Number of resource metrics
  • Number of data points

• configtls: Reload mTLS ClientCA certificates on file change (#6524)

• confmap: Add support for nested URIs. (#7117)

• featuregate: Add concept of gate lifetime, [fromVersion, toVersion]. (#7043)

🧰 Bug fixes 🧰

• obsreport: fix issue where send_failed_requests counter was reporting an incorrect value. (#7456)

v1.0.0-rc9/v0.75.0

🛑 Breaking changes 🛑

• featuregate: Remove deprecated featuregate.FlagValue (#7401)

💡 Enhancements 💡

• provider: Added userfriendly error on incorrect type. (#7399)

🧰 Bug fixes 🧰

• loggingexporter: Fix display of bucket boundaries of exponential histograms to correctly reflect inclusive/exclusive bounds. (#7445)
• exporterhelper: Fix a deadlock in persistent queue initialization (#7400)

v1.0.0-rc8/v0.74.0

🛑 Breaking changes 🛑

• consumererror: Remove deprecated funcs in consumererror (#7357)

🚩 Deprecations 🚩

• featuregate: Deprecate FlagValue in favor of NewFlag. (#7042)

💡 Enhancements 💡

• service: Enable connectors by default by moving service.connectors featuregate to beta (#7369)

v0.73.0/v1.0.0-rc7

🛑 Breaking changes 🛑

• consumererror: Remove Get prefix from methods returning failed signal data (#7048)
• service: Feature gate service.graph is now stable and cannot be disabled. It will be removed in the next version. (#2336)

💡 Enhancements 💡

• exporter: split exporter into its own module (#7239)
• receiver: split receiver into its own module (#7174)
• connectors: Provide connectors with a mechanism to route data to specific pipelines (#7152)
• confmap: Mark confmap.expandEnabled as stable (#7323)

v1.0.0-rc6/v0.72.0

🛑 Breaking changes 🛑

• all: Remove go 1.18 support, bump minimum to go 1.19 and add testing for 1.20 (#7151)
• pdata: Remove deprecated [Metrics|Traces|Logs]MoveTo methods. (#7165)
• featuregate: Remove deprecated funcs in featuregate. (#7173)

💡 Enhancements 💡

• semconv: Generated Semantic conventions 1.17 that now contains the event type. (#7170)
• semconv: Generated Semantic conventions 1.18. (#7168)

🧰 Bug fixes 🧰

• memorylimiterprocessor: Fix incorrect parsing of cgroups when running Collector with host mount (#6826)
• confmap: Clear list of old already closed closers. (#7215)

v1.0.0-rc5/v0.71.0

🛑 Breaking changes 🛑

• pdata: Add private method to GrpcServer interface, disallow direct implementation (#6966)
• featuregate: Remove deprecated GetRegistry (#7011)
• pcommon: Remove deprecated Map.Sort (#6688)

🚩 Deprecations 🚩

• featuregate: Deprecate Registry.List in favor of Registry.VisitAll. (#7041)
• featuregate: Deprecate Apply in favor of Set (#7018)
• pdata: Deprecate [Metrics|Logs|Traces].MoveTo methods. (#7091)
• featuregate: Deprecate RegistryOption in favor of RegisterOption (#7012)
• featuregate: Deprecate featuregate.Registry.[IsEnabled, RegisterID, MustRegister] (#6998)

🚀 New components 🚀

• httpsprovider: Add the httpsprovider. This component allows the collector to fetch configurations from web servers using the HTTPS protocol. (#6683)

💡 Enhancements 💡

• exporter: Allow configuration of fields, RandomizationFactor and Multiplier, for exponential backoff algorithm when retry on failure is enabled (#6610)

• connectors: Add "connectors", a new type of pipeline component (#2336)

  • Connectors connect pipelines by acting as an exporter in one or more pipelines and simultaneously as a receiver of corresponding data in one or more other pipelines. For example:
    • The forward connector can export data to another pipeline of the same type. This allows you to merge data from multiple pipelines onto a common pipeline. Or, you can replicate data onto multiple pipelines so that it may be processed in different ways and/or exported to different backends.
    • The count connector can count data of any type. Regardless of the type of data that is counted, it emits counts as metrics onto a metrics pipeline.
  • Connectors are currently disabled by default but can be enabled with the service.connectors feature gate.
  • See the connectors README for more details on how to use connectors.

• service: Enable new pipelines implementation using graphs. Controlled by the service.graph featuregate. (#2336)

• builder: added ldflags command option (#6940)

• proctelemetry: Instrument proctelemetry.ProcessMetrics metrics with otel-go (#6886)

• capabilityconsumer: If the consumer has already the desired capability, don't wrap (#7116)

• confmap: Add support to resolve embedded uris inside a string, concatenate results. (#6932)

🧰 Bug fixes 🧰

• confmap: Fix bug in confmap validation that allowed the usage of case-insensitive keys in the configurations, despite them failing silently. (#6876)
• logging: Fix the attribute key used to identify the receiver data type in logging configuration (#7033)

v1.0.0-RC4/v0.70.0

🛑 Breaking changes 🛑

• pdata: Start enforcing grpc server implementation to embed UnimplementedGRPCServer, disallow client implementation (#6966)
• config/configgrpc: Change configgrpc.GRPCClientSettings.Headers type to map[string]configopaque.String (#6852) Use configopaque.String(str) and string(opaque) to turn a string opaque/clear.
• pdata: Remove deprecated pcommon.Value.Equal (#6860)

🚩 Deprecations 🚩

• pdata: Deprecate pcommon.Map.Sort(). (#6688)
• featuregate: Deprecate GetRegistry in favor of GlobalRegistry (#6979)

💡 Enhancements 💡

• builder: Add remote debug option for otel-collector to builder (#6149)
• connector: Add Builder (#6867)
• cmd/builder: Add support for connector configurations (#6789)
• exporter/otlphttp: Retry only on status code 429/502/503/504 (#6845)
• featuregate: Reduce contention in featuregate by using sync.Map instead of mutex. (#6980)

🧰 Bug fixes 🧰

• loggingexporter: Fix undefined symbol errors on building otelcorecol for other platforms than darwin, linux, windows. (#6924)
• otlpexporter: Fix a dataloss bug in persistent storage when collector shuts down or restarts (#6771)

v0.69.1

🧰 Bug fixes 🧰

• various modules: Fix issue where some collector modules imported previous version of other modules (#6929)

v1.0.0-RC3/v0.69.0

🛑 Breaking changes 🛑

• component: Remove deprecated Exporter types (#6880)
• component: Remove deprecated Extension types (#6865)
• component: Remove deprecated ProcessorFactoryOptions (#6881)
• component: Remove deprecated Receiver types (#6882)
• componenttest: Remove deprecated funcs from componenttest (#6836)
• batchprocessor: Remove deprecated batchprocessor.MetricViews and batchprocessor.OtelMetricViews (#6861)
• component: Remove deprecated component.[Factories|MakeProcessorFactoryMap] and componenttest.NewNopFactories (#6835)
• config: Remove deprecated config.*Settings (#6837)
• obsreporttest: Remove deprecated obsreporttest.SetupTelemetryWithID (#6861)
• component: Remove deprecated component [Traces|Metrics|Logs]Processor and ProcessorFactory (#6884)
• service: Remove deprecated service service.ConfigService and service.ConfigServicePipeline (#6859)

💡 Enhancements 💡

• connector: Add MakeFactoryMap (#6889)
• semconv: Add semantic conventions for specification v1.16.0 (#6714)

🧰 Bug fixes 🧰

• config: use [REDACTED] when marshaling to text a configopaque.String, instead of disclosing secret length. (#6868)

v1.0.0-RC2/v0.68.0

🛑 Breaking changes 🛑

• componenttest: Move NopFactories to otelcoltest (#6792)
• config/confighttp: Change confighttp.HTTPClientSettings.Headers type to map[string]configopaque.String (#5653)
• config: Remove deprecated component.Config.[ID|SetIDName]. (#4714)
• configauth: Remove deprecated funcs/types from configauth (#6719)
• component: Remove deprecated funcs/types from component package (#6769)
  • component.[Exporter|Processor|Receiver|Extension]Config
  • component.Unmarshal[Exporter|Processor|Receiver|Extension]Config
  • component.[Exporter|Processor|Receiver|Extension]CreateDefaultConfigFunc
  • component.[Exporter|Receiver|Extension]FactoryOption
  • component.New[Exporter|Receiver|Extension]Factory
  • component.With[Traces|Metrics|Logs][Exporter|Receiver]
  • component.Create[Traces|Metrics|Logs][Exporter|Receiver]Func
  • component.CreateExtensionFunc
• componenttest: Remove deprecated componenttest.NewNop*CreateSettings (#6761)
• service: Remove deprecated service.[Collector|New|CollectorSettings|ConfigProvider] (#5564)
• service: Remove deprecated funcs service.NewCommand and service.NewSvcHandler. (#5564)
• obsreporttest: Remove deprecate obsreporttest.Check* (#6720)
• service: Remove deprecated service.Config. (#6774)
• servicetest: Remove deprecated servicetest package. (#5564)

🚩 Deprecations 🚩

• service: Deprecate service.ConfigService in favor of service.Config and service.ConfigServicePipeline in favor of service.PipelineConfig. (#6787)
• pdata: Deprecate pcommon.Value.Equal method (#6811)
• component: Deprecate Processor related structs and functions in favor of processor package (#6709)
• component: Deprecate component.Factories in favor of otelcol.Factories (#6723)
• config: Deprecate config.[Extension|Exporter|Connector|Receiver|Processor]Settings. (#6718)
• batchprocessor: Deprecate metric views funcs, for OC and Otel. (#6730)
• obsreporttest: Deprecate obsreporttest.SetupTelemetryWithID in favor of obsreporttest.SetupTelemetry (#6720)

🚀 New components 🚀

• forwardconnector: Add forward connector (#6763)

💡 Enhancements 💡

• components: Add [receiver|processor|exporter|extension].Builder to help with creating components form a set of configs and factories (#6803)
• configunmarshaler: Consolidate package into generic implementation (#6801)
• service: Shutdown internal telemetry with the Service (every time config changes). (#5564)

🧰 Bug fixes 🧰

• configgrpc: Fix todo to add MeterProvider to grpc instrumentation (#4030)
• otlpreceiver: Fix otlpreceiver transport metrics attribute (#6695)

v1.0.0-RC1/v0.67.0

We are excited to announce that the pdata module is now available as a v1.0.0 release candidate. While breaking changes may still happen in this module before v1.0.0, we believe it is ready for final assessment and validation and hope to make a v1.0.0 release soon.

🛑 Breaking changes 🛑

• overwritepropertiesconverter: Remove deprecated package overwritepropertiesconverter (#6656)
• pdata: Change [...Slice|Map].Sort methods to not return any value (#6660)
• featuregate: remove deprecated functions (#6594)
  • featuregate.GetID()
  • featuregate.GetDescription()
• obsreport: remove deprecated functions. (#6595)
  • obsreport.MustNewExporter
  • obsreport.MustNewProcessor
  • obsreport.MustNewReceiver
  • obsreport.MustNewScraper
• service: Remove deprecated service.State enum values. (#6605)
• component: Remove deprecated func/types from component (#6606)
• config: Remove deprecated config.Pipelines and config.Pipeline (#6664)
• ballastextension: Remove deprecated ballastextension.MemoryBallast type (#6628)
• component: Remove Validate() from component.*Config interfaces and make it optional interface (#6544)
• confmap: Splitting confmap into its own module (#6185) The import path for the confmap module can now be access directly:
  • go.opentelemetry.io/collector/confmap

🚩 Deprecations 🚩

• service: Deprecate service.[Collector|NewSvcHandler|CollectorSettings|State|NewCommand] in favor of otelcol package" (#6608)

  • Deprecate service.Config in favor of otelcol.Config.
  • Deprecate service.ConfigProvider in favor of otelcol.ConfigProvider.
  • Deprecate service.NewConfigProvider in favor of otelcol.NewConfigProvider.
  • Deprecate service.CollectorSettings in favor of otelcol.CollectorSettings.
  • Deprecate service.Collector in favor of otelcol.Collector.
  • Deprecate service.New in favor of otelcol.NewCollector.
  • Deprecate service.State in favor of otelcol.State.
  • Deprecate service.NewSvcHandler in favor of otelcol.NewSvcHandler.
  • Deprecate service.NewCommand in favor of otelcol.NewCommand.

• obsreporttest: Deprecate obsreporttest.Check* in favor of TestTelemetry.Check (#6678)

• component: Deprecate Exporter related types/funcs from component package in favor of exporter package. (#6578)

  • component.ExporterCreateSettings -> exporter.CreateSettings
  • component.CreateTracesExporterFunc -> exporter.CreateTracesFunc
  • component.CreateMetricsExporterFunc -> exporter.CreateMetricsFunc
  • component.CreateLogsExporterFunc -> exporter.CreateLogsFunc
  • component.ExporterFactory -> exporter.Factory
  • component.NewExporterFactory -> exporter.NewFactory
  • component.MakeExporterFactoryMap -> exporter.MakeFactoryMap
  • componenttest.NewNopExporterCreateSettings -> exportertest.NewNopCreateSettings
  • componenttest.NewNopExporterFactory -> exportertest.NewNopFactory

• component: Change Config to be opaque for otel collector core. (#4714)

  • Deprecate component.Config.ID() in favor of component.[*]CreateSettings.ID.
  • Deprecate component.Config.SetIDName(), no replacement needed since ID in settings is public member.
  • Deprecate obsreporttest.SetupTelemetry in favor of obsreporttest.SetupTelemetryWithID.

• component: Deprecate component.Unmarshal[*]Config in favor of component.UnmarshalConfig (#6613)

• component: Deprecate Extension related types/funcs from component package in favor of extension package. (#6578)

  • component.Extension -> extension.Extension
  • component.PipelineWatcher -> extension.PipelineWatcher
  • component.ExtensionCreateSettings -> extension.CreateSettings
  • component.CreateExtensionFunc -> extension.CreateFunc
  • component.ExtensionFactory -> extension.Factory
  • component.NewExtensionFactory -> extension.NewFactory
  • component.MakeExtensionFactoryMap -> extension.MakeFactoryMap
  • componenttest.NewNopExtensionCreateSettings -> extensiontest.NewNopCreateSettings
  • componenttest.NewNopExtensionFactory -> extensiontest.NewNopFactory

• component: Deprecate Receiver related structs and functions in favor of receiver package (#6687)

• component: Deprecate component.[Exporter|Extension|Processor|Receiver]Config in favor of component.Config (#6578)

• pdata: Remove deprecated funcs pdata.[Span|Trace]ID.HexString (#6627)

💡 Enhancements 💡

• config/configopaque: Add new configopaque.String type alias for opaque strings. (#5653)
• service: Added components sub command which outputs components in collector distribution. (#4671)
• component: Define new component type 'connectors' (#6577)
• connector: Add connector factory (#6611)
• connector: Add connector types (TracesConnector, MetricsConnector, LogsConnector) (#6689)
• connectortest: Add connector/connectortest package (#6711)
• component: Add recursive validation check for configs (#4584)
• service: Improve config error messages, split Validate functionality (#6665)
• extension/authextension: Define new authextension package and use new package in collector repo (#6467)
  • configauth.ClientAuthenticator -> auth.Client
  • configauth.NewClientAuthenticator -> auth.NewClient
  • configauth.ClientOption -> auth.ClientOption
  • configauth.WithClientStart -> auth.WithClientStart
  • configauth.WithClientShutdown -> auth.WithClientShutdown
  • configauth.WithClientRoundTripper -> auth.WithClientRoundTripper
  • configauth.WithPerRPCCredentials -> auth.WithClientPerRPCCredentials
  • configauth.ServerAuthenticator -> auth.Server
  • configauth.NewServerAuthenticator -> auth.NewServer
  • configauth.Option -> auth.ServerOption
  • configauth.AuthenticateFunc -> auth.ServerAuthenticateFunc
  • configauth.WithAuthenticate -> auth.WithServerAuthenticate
  • configauth.WithStart -> auth.WithServerStart
  • configauth.WithShutdown -> auth.WithServerShutdown
• obsreport: Instrument obsreport.Processor metrics with otel-go (#6607)
• pdata: Add ability to clear optional fields (#6474)

🧰 Bug fixes 🧰

• otlpexporter: Fix nil panic from otlp exporter in case of errors during Start. (#6633)
• service: Stop notification for signals before shutdown, increase channel size. (#6522)
• confmap: Fix support for concatenating envvars with colon (#6580)
• otlpexporter: Fix a bug that exporter persistent queue is sending duplicate data after restarting. (#6692)

v0.65.0

🛑 Breaking changes 🛑

• featuregate: Capitalize featuregate.Stage string values, remove Stage prefix. (#6490)

• configtelemetry: Update values returned by Level.String and Level.MarshalText method. (#6490)

  • All returned strings are capitalized.
  • "" is returned for integers that are out of Level enum range.
  • It also affects Level.Marshal output, but it's not a problem because Unmarshal method accepts strings in all cases, e.g. "normal", "Normal" and "NORMAL".

• featuregate: Make impossible to implement RegistryOption outside featuregate package (#6532)

• service/telemetry: Remove unit suffixes from metrics exported by the otel-go prometheus exporter. (#6403)

• obsreport: obsreport.New[Receiver|Scraper|Processor|Exporter] returns error now (#6458)

• configgrpc: Remove deprecated funcs in configgrpc. (#6529)

  • configgrpc.GRPCClientSettings.ToDialOptions
  • configgrpc.GRPCServerSettings.ToServerOption

• config/configtest: Remove deprecated configtest package. (#6542)

• config: Remove deprecated types and funcs from config. Use component package. (#6511)

  • config.ComponentID
  • config.Type
  • config.DataType
  • config.Receiver
  • config.UnmarshalReceiver
  • config.Processor
  • config.UnmarshalProcessor
  • config.Exporter
  • config.UnmarshalExporter
  • config.Extension
  • config.UnmarshalExtension

• featuregate: Remove deprecated funcs and struct members from featuregate package (#6523)

  • featuregate.Gate.ID
  • featuregate.Gate.Description
  • featuregate.Gate.Enabled
  • featuregate.Registry.Register
  • featuregate.Registry.MustRegister

• experimental: Remove experimental configsource code. (#6558)

• component: Update values returned by StabilityLevel.String method. (#6490)

  • All returned strings are capitalized.
  • "Undefined" is returned only for StabilityLevelUndefined.
  • "" is returned for integers that are out of StabilityLevel enum range.

🚩 Deprecations 🚩

• pdata: Deprecate pcommon.[Span|Trace]ID.HexString methods. Call hex.EncodeToString explicitly instead. (#6514)

• obsreport: deprecate obsreport.MustNew[Receiver|Scraper|Processor|Exporter] in favor of obsreport.New[Receiver|Scraper|Processor|Exporter] (#6458)

  • Deprecate obsreport.MustNewReceiver() in favor of obsreport.NewReceiver()
  • Deprecate obsreport.MustNewScraper() in favor of obsreport.NewScraper()
  • Deprecate obsreport.MustNewProcessor() in favor of obsreport.NewProcessor()
  • Deprecate obsreport.MustNewExporter() in favor of obsreport.NewExporter()

• component: Deprecate component.Receiver, component.Processor, and component.Exporter. (#6553)

• featuregate: Deprecate Get prefix funcs for featuregate.Gate (#6528) featuregate.Gate.GetID -> featuregate.Gate.ID featuregate.Gate.GetDescription -> featuregate.Gate.Description

• component: Deprecate component.Config.Validate in favor of component.ValidateConfig (#6572)

• component: Deprecate StabilityLevelInDevelopment enum const in favor of StabilityLevelDevelopment. (#6561) Also rename all mentions of "In development" stability level to "Development".

• service: Deprecate service.[Starting|Running|Closing|Closed] in favor of service.State[Starting|Running|Closing|Closed] (#6492)

💡 Enhancements 💡

• component: component.Extension is temporarily set to be an alias of component.Component which will be reverted once it's moved to the extension package. Change your component.Host.GetExtensions() implementation to return map[ID]component.Component instead of map[ID]component.Extension (#6553)
• pdata: Return error from pcommon.[Value|Map|Slice].FromRaw when unsupported type. (#6579)
• batchprocessor: instrument the batch processor with OpenTelemetry Go SDK (#6423)
• obsreport: Instrument obsreport.Scraper metrics with otel-go (#6460)
• service/collector: Support SIGHUP configuration reloading (#5966)
• component: Split component into its own package (#6187) The import path for the component module can now be access directly:
  • go.opentelemetry.io/collector/component
• consumer: Split consumer into its own package (#6186) The import path for the consumer module can now be accessed directly:
  • go.opentelemetry.io/collector/consumer
• featuregate: Split featuregate into its own package (#6526) The import path for the featuregate module can now be accessed directly:
  • go.opentelemetry.io/collector/featuregate

🧰 Bug fixes 🧰

• service: Disallow duplicate references to processors within a single pipeline (#6540)

v0.64.1

🧰 Bug fixes 🧰

• loggingexporter: Fix logging exporter to not mutate the data (#6420)

0.64.0

🛑 Breaking changes 🛑

• config: Remove already deprecates config.Service. (#6395)

• pdata: Change output of String() method of the following enum types to more a concise form: (#6251)

  • plog.SeverityNumber
  • ptrace.SpanKind
  • ptrace.StatusCode

• config: Remove already deprecates config.Config. (#6394)

• pdata: Remove deprecated code from pdata (#6417)

  • p[trace|metric|log]otlp.[Request|Response]
  • p[trace|metric|log]otlp.New[Request|Response]
  • p[trace|metric|log]otlp.NewRequestFrom[Traces|Metrics|Logs]
  • p[trace|metric|log]otlp.NewClient
  • p[trace|metric|log]New[JSON|Proto][Marshaler|Unmarshaler]

• extension: Splitting ballast/zpages extension into their own modules (#6191) The import path for the extension modules can now be accessed directly:

  • go.opentelemetry.io/collector/extension/ballastextension
  • go.opentelemetry.io/collector/extension/zpagesextension

  If using one of these extensions, modify your Collector builder configuration to use gomod directly, such as:

  • gomod: go.opentelemetry.io/collector/extension/ballastextension v0.64.0

• processor: Splitting batch/memorylimiter processors into their own modules (#6188, #6192, #6193) The import path for the processor modules can now be access directly:

  • go.opentelemetry.io/collector/processor/batchprocessor
  • go.opentelemetry.io/collector/processor/memorylimiter

  If using this processor, modify your Collector builder configuration to use gomod directly, such as:

  • gomod: go.opentelemetry.io/collector/processor/batchprocessor v0.64.0

• otlpreceiver: Splitting otlp receiver into its own module (#6190) The import path for the OTLP receiver can now be access directly:

  • go.opentelemetry.io/collector/receiver/otlpreceiver

  If using this receiver, modify your Collector builder configuration to use gomod directly, such as:

  • gomod: go.opentelemetry.io/collector/receiver/otlpreceiver v0.64.0

• confmap: Remove unused public member sync.Mutex from confmap.Resolver. (#6489) This is an exception from the deprecation rule since this is not used anywhere and it is very unlikely that is used by external users.

🚩 Deprecations 🚩

• config: Deprecate multiple types and funcs in config package (#6422)

  • config.ComponentID => component.ID
  • config.Type => component.Type
  • config.DataType => component.DataType
  • config.[Traces|Metrics|Logs]DataType => component.DataType[Traces|Metrics|Logs]
  • config.Receiver => component.ReceiverConfig
  • config.UnmarshalReceiver => component.UnmarshalReceiverConfig
  • config.Processor => component.ProcessorConfig
  • config.UnmarshalProcessor => component.UnmarshalProcessorConfig
  • config.Exporter => component.ExporterConfig
  • config.UnmarshalExporter => component.UnmarshalExporterConfig
  • config.Extension => component.ExtensionConfig
  • config.UnmarshalExtension => component.UnmarshalExtensionConfig

• obsreport: deprecate obsreport.New[Receiver|Scraper|Processor|Exporter] in favor of obsreport.MustNew[Receiver|Scraper|Processor|Exporter] (#6458)

• config/configgrpc: Provide better helpers for configgrpc, consistent with confighttp (#6441)

  • Deprecate GRPCClientSettings.ToDialOptions in favor of GRPCClientSettings.ToClientConn.
  • Deprecate GRPCServerSettings.ToServerOption in favor of GRPCServerSettings.ToServer.

• featuregates: Removing Gates being configurable externally to the Registry (#6167)

  • Deprecate Gate.ID in favour of Registry.RegisterID
  • Deprecate Gate.Enabled in favour of Gate.IsEnabled()
  • Deprecate Gate.Description in favour of WithRegisterDescription to be used with Registry.RegisterID
  • Deprecate Registry.Register in favour of Registry.RegisterID
  • Deprecate Registry.MustRegister in favour of Registry.MustRegisterID

💡 Enhancements 💡

• service/telemetry: Allow to configure sampling config for logs. (#4554)
• featuregates: Extend feature gate definition to include support for issue links and expected deprecated version (#6167)
• receiver/otlp: Add warning when using unspecified (0.0.0.0) address on HTTP or gRPC servers (#6151)
• obsreport: Instrument obsreport.Exporter metrics with otel-go (#6346)
• config: Add validation for empty address [telemetry::metrics::address] (#5661)

🧰 Bug fixes 🧰

• cgroups: split line into exactly 3 parts while parsing /proc/{pid}/cgroup (#6389)
• cgroups: Use int64 for cgroup v1 parsing (#6443)

v0.63.1

🧰 Bug fixes 🧰

• service: Fix running collector as a windows service. (#6433)

v0.63.0

🛑 Breaking changes 🛑

• pdata: JSON marshaler emits enums as ints per spec requirements. This may be a breaking change if receivers were not confirming with the spec. (#6338)

• confmap: Remove deprecated confmap.Conf.UnmarshalExact API in 0.62.0 (#6315)

• pdata: Remove API deprecated in 0.62.0 (#6314)

  • Remove deprecated pcommon.NewValueString
  • Remove deprecated pcommon.Map.PutString
  • Remove deprecated plog.SeverityNumberUndefined
  • Remove deprecated p[metric|log|trace]otlp.RegisterServer
  • Remove deprecated pmetric.[Default]?MetricDataPointFlags
  • Remove deprecated pmetric.MetricAggregationTemporality*
  • Remove deprecated pmetric.MetricTypeNone
  • Remove deprecated pmetric.NumberDataPointValueTypeNone
  • Remove deprecated pmetric.ExemplarValueTypeNone
  • Remove deprecated pmetric.[New]?Buckets
  • Remove deprecated pmetric.[New]?ValueAtQuantile
  • Remove deprecated pmetric.[New]?ValueAtQuantileSlice
  • Remove deprecated ptrace.[New]?SpanStatus

• exporter: Splitting otlp, otlphttp and logging exporters into their own modules (#6343) The import path for these exporters can now be access directly:

  • go.opentelemetry.io/collector/exporter/loggingexporter
  • go.opentelemetry.io/collector/exporter/otlpexporter
  • go.opentelemetry.io/collector/exporter/otlphttpexporter

  If using these exporters, modify your Collector builder configuration to use gomod directly, such as:

  • gomod: go.opentelemetry.io/collector/exporter/otlpexporter v0.63.0

🚩 Deprecations 🚩

• overwritepropertiesconverter: Deprecate overwritepropertiesconverter, only used by non builder distributions. (#6294)

• pdata: Add Export prefix to p[trace|metric|log]otlp.[Request|Response] (#6365)

  • Deprecate p[trace|metric|log]otlp.[Request|Response] in favor of p[trace|metric|log]otlp.Export[Request|Response]
  • Deprecate p[trace|metric|log]otlp.New[Request|Response] in favor of p[trace|metric|log]otlp.NewExport[Request|Response]
  • Deprecate p[trace|metric|log]otlp.NewRequestFrom[Traces|Metrics|Logs] in favor of p[trace|metric|log]otlp.NewExportRequestFrom[Traces|Metrics|Logs]

• pdata: Deprecate p[trace|metric|log]otlp.NewClient in favor of p[trace|metric|log]otlp.NewGRPCClient (#6350)

• exporter/logging: Deprecate 'loglevel' in favor of 'verbosity' option (#5878)

• pdata: Deprecate New[JSON|Proto][Marshaler|Unmarshaler] in favor of exposing the underlying structs (#6340)

💡 Enhancements 💡

• pdata: Introduce partial success fields in ExportResponse. (#5815, #5816, #6365)
• obsreport: Instrument obsreport.Receiver metrics with otel-go (#6222)
• service/telemetry: Move logging and tracing initialization to service/telemetry (#5564)
• confmap: Fail fast when a resolver has URIs with unsupported schemes. (#6274)
• service: Use the same prometheus.Registry for the OpenCensus and OpenTelemetry Go prometheus exporters to act as a bridge for internal telemetry (#6297)

🧰 Bug fixes 🧰

• pdata: Because of wrong deprecation/rename in proto, services still send the fake 1000 proto id. See https://github.com/open-telemetry/opentelemetry-proto/issues/431 (#6342)
• confmap: When a sub-config implements Unmarshaler, do not reinitialized it unless necessary. (#6392)
• pdata: Enable enums as ints for otlp messages, switch to jsoniter for responses. (#6345)
• collector: Fixed collector service not cleaning up if it failed during Start (#6352)

v0.62.1 Beta

• Fix support for new line in config URI location. (#6306)

v0.62.0 Beta

🛑 Breaking changes 🛑

• Delete deprecated go.opentelemetry.io/collector/service/featuregate. (#6178)
• Delete deprecated pmetric.OptionalType. (#6178)
• Delete deprecated ptrace.Span[Link]?.TraceStateStruct. (#6178)
• Delete deprecated pcommon.NewValueBytesEmpty. (#6178)
• Delete deprecated pmetric.MetricDataType. (#6178)
• Delete deprecated pmetric.Metric.DataType(). (#6178)
• Delete deprecated pmetric.NumberDataPoint.[Set]?[Int|Double]Val(). (#6178)
• Delete deprecated pmetric.Exemplar.[Set]?[Int|Double]Val(). (#6178)
• Delete deprecated p[metric|log|trace]otlp.[Client|Server]. (#6178)
• Delete deprecated pdata Clone methods. (#6178)
• Delete deprecated pcommon.Value getter/setter methods with Val suffix. (#6178)
• Delete deprecated StringVal and SetStringVal methods. (#6178)
• Delete deprecated ValueTypeString method. (#6178)
• Change AggregationTemporality.String to simpler, easier to read. (#6117)
• Update pcommon.ValueType.String output to string representation of corresponding type identifiers. The following values will be returned: (#6247)
  • ValueTypeEmpty.String() -> "Empty"
  • ValueTypeStr.String() -> "Str"
  • ValueTypeBool.String() -> "Bool"
  • ValueTypeInt.String() -> "Int"
  • ValueTypeDouble.String() -> "Double"
  • ValueTypeMap.String() -> "Map"
  • ValueTypeSlice.String() -> "Slice"
  • ValueTypeBytes.String() -> "Bytes"
• Rename output of [MetricType|NumberDataPointValueType|ExemplarValueType].String() for zero values from "None" to "Empty" (#6270)

🚩 Deprecations 🚩

• Deprecate p[metric|log|trace]otlp.RegisterServer in favor of p[metric|log|trace]otlp.RegisterGRPCServer (#6182)
• Deprecate pcommon.Map.PutString in favor of pcommon.Map.PutStr (#6210)
• Deprecate pcommon.NewValueString in favor of pcommon.NewValueStr (#6209)
• Deprecate pmetric.MetricAggregationTemporality enum type in favor of pmetric.AggregationTemporality (#6253)
• Deprecate confmap.Conf.UnmarshalExact in favor of confmap.Conf.Unmarshal(.., WithErrorUnused) (#6231)
• Deprecate pmetric.[Default]?MetricDataPointFlags favor of pmetric.[Default]?DataPointFlags (#6259)
• Deprecate ptrace.[New]?SpanStatus favor of ptrace.[New]?Status (#6258)
• Deprecate pmetric.[New]?Buckets in favor of pmetric.[New]?ExponentialHistogramDataPointBuckets (#6261)
• Deprecate plog.SeverityNumberUndefined in favor of plog.SeverityNumberUnspecified (#6269)
• Deprecate pmetric.[New]?ValueAtQuantile[Slice]? in favor of pmetric.[New]?SummaryDataPointValueAtQuantile[Slice]? (#6262)
• Deprecate enum zero constants ending with None (#6270)
  • Deprecate pmetric.MetricTypeNone in favor of pmetric.MetricTypeEmpty
  • Deprecate pmetric.NumberDataPointValueTypeNone in favor of pmetric.NumberDataPointValueTypeEmpty
  • Deprecate pmetric.ExemplarValueTypeNone in favor of pmetric.ExemplarValueTypeEmpty

💡 Enhancements 💡

• Add config marshaler (#5566)
• Add semantic conventions for specification v1.10-v1.13 (#6213)
• receiver/otlp: Make logs related to gRCPC and HTTP server startup clearer (#6174)
• Add prometheus metric prefix to Collector's own telemetry when using OpenTelemetry for internal telemetry (#6223)
• exporter/logging: Apply consistent rendering of map values (#6244)
• Add support in the confmap.Resolver to expand embedded config URIs inside configuration. (#6276)

🧰 Bug fixes 🧰

• Fixed bug where telemetryInitializer is not cleaned up when newService errors (#6239)

v0.61.0 Beta

🛑 Breaking changes 🛑

• Change ptrace.Span[Link]?.TraceState signature to match ptrace.Span[Link]?.TraceStateStruct (#6085)
• Delete deprecated pmetric.NewMetricDataPointFlagsImmutable func. (#6097)
• Delete deprecated pmetric.*DataPoint.[Set]FlagsImmutable() funcs. (#6097)
• Delete deprecated config.Unmarshalable interface. (#6084)
• Delete deprecated p[metric|log|trace].MarshalerSizer interfaces (#6083)
• Delete deprecated pcommon.Map.Insert* funcs. (#6088)
• Delete deprecated pcommon.Map.Upsert* funcs. (#6088)
• Delete deprecated pcommon.Map.Update* funcs. (#6088)
• Change pcommon.NewValueBytes signature to match pcommon.NewValueBytesEmpty. (#6088)
• Delete deprecated pcommon.Empty[Trace|Span]ID. (#6098)
• Delete deprecated pcommon.[Trace|Span]ID.Bytes(). (#6098)
• Delete deprecated pcommon.New[Trace|Span]ID(). (#6098)
• Delete deprecated pcommon.Value.SetBytesVal. (#6088)
• Delete deprecated pmetric.Metric.SetDataType. (#6095)
• Delete deprecated plog.LogRecord.[Set]FlagStruct funcs. (#6100)
• Delete deprecated pcommon.ImmutableByteSlice and pcommon.NewImmutableByteSlice. (#6107)
• Delete deprecated pcommon.ImmutableFloat64Slice and pcommon.NewImmutableFloat64Slice. (#6107)
• Delete deprecated pcommon.ImmutableUInt64Slice and pcommon.NewImmutableUInt64Slice. (#6107)
• Delete deprecated *DataPoint.SetBucketCounts and *DataPoint.SetExplicitBounds. (#6108)

🚩 Deprecations 🚩

• Deprecate go.opentelemetry.io/collector/service/featuregate in favor of go.opentelemetry.io/collector/featuregate. (#6094)
• Deprecate pmetric.OptionalType, unused enum type. (#6096)
• Deprecate ptrace.Span[Link]?.TraceStateStruct in favor of ptrace.Span[Link]?.TraceState (#6085)
• Deprecate pcommon.NewValueBytesEmpty in favor of pcommon.NewValueBytes that now has the same signature. (#6105)
• Deprecate pmetric.MetricDataType and related constants in favor of pmetric.MetricType. (#6127)
• Deprecate pmetric.Metric.DataType() in favor of pmetric.Metric.Type(). (#6127)
• Deprecate pmetric.NumberDataPoint.[Set]?[Int|Double]Val() in favor of pmetric.NumberDataPoint.[Set]?[Int|Double]Value(). (#6134)
• Deprecate pmetric.Exemplar.[Set]?[Int|Double]Val() in favor of pmetric.Exemplar.[Set]?[Int|Double]Value(). (#6134)
• Deprecate p[metric|log|trace]otlp.[Client|Server] in favor of p[metric|log|trace]otlp.GRPC[Client|Server] (#6165)
• Deprecate pdata Clone methods in favor of CopyTo for consistency with other pdata structs (#6164)
  • pmetric.Metrics.Clone is deprecated in favor of pmetric.Metrics.CopyTo
  • ptrace.Traces.Clone is deprecated in favor of pmetric.Traces.CopyTo
  • plog.Logs.Clone is deprecated in favor of plogs.Logs.CopyTo
• Rename all pcommon.Value getter/setter methods by removing Val suffix. (#6092)
  • Old methods with Val suffix are deprecated.
  • StringVal and SetStringVal are deprecated in favor of Str and SetStr to avoid implementing fmt.Stringer interface.
  • Therefore, ValueTypeString is deprecated in favour of ValueTypeStr for consistency.

💡 Enhancements 💡

• Add AppendEmpty and EnsureCapacity method to primitive pdata slices (#6060)
• Expose AsRaw and FromRaw pcommon.Value methods (#6090)
• Convert ValueTypeBytes attributes in logging exporter (#6153)
• service.name Resource attribute is added to Collector's own telemetry, defaults to the value of BuildInfo.Command and can be overridden in the config (#6152)
• Updated how telemetryInitializer is created so it's instanced per Collector instance rather than global to the process (#6138)

v0.60.0 Beta

🛑 Breaking changes 🛑

• Replace deprecated *DataPoint.Flags() with *DataPoint.[Set]FlagsImmutable(). (#6017)
• Remove deprecated MetricDataPointFlagsStruct struct and NewMetricDataPointFlagsStruct func. (#6017)
• Replace deprecated MetricDataPointFlags with MetricDataPointFlagsImmutable. (#6017)
• Replace deprecated LogRecord.[Set]Flags() with LogRecord.[Set]FlagsStruct(). (#6007)
• Remove deprecated components helpers funcs (#6006)
  • exporterhelper.New[Traces|Metrics|Logs]ExporterWithContext
  • processorhelper.New[Traces|Metrics|Logs]ProcessorWithCreateSettings
  • component.NewExtensionFactoryWithStabilityLevel
• Remove deprecated pcommon.InvalidTraceID and pcommon.InvalidSpanID funcs (#6008)
• Remove deprecated pcommon.Map methods: Update, Upsert, InsertNull (#6019)

🚩 Deprecations 🚩

• Deprecate pmetric.Metric.SetDataType, in favor of empty setters for each type. (#5979)
• Deprecate p[metric|log|trace].MarshalerSizer in favor of p[metric|log|trace].MarshalSizer. (#6033)
• Deprecate pcommon.Map.Update+ in favor of pcommon.Map.Get + pcommon.Value.Set+ (#6013)
• Deprecate pcommon.Empty[Trace|Span]ID in favor of pcommon.New[Trace|Span]IDEmpty (#6008)
• Deprecate pcommon.[Trace|Span]ID.Bytes in favor direct conversion. (#6008)
• Deprecate pcommon.New[Trace|Span]ID in favor direct conversion. (#6008)
• Deprecate MetricDataPointFlagsImmutable type. (#6017)
• Deprecate *DataPoint.[Set]FlagsImmutable() funcs in favor of *DataPoint.[Set]Flags(). (#6017)
• Deprecate LogRecord.FlagsStruct() and LogRecord.SetFlagsStruct() in favor of LogRecord.Flags() and LogRecord.SetFlags(). (#6007)
• Deprecate config.Unmarshallable in favor of confmap.Unmarshaler. (#6031)
• Primitive slice wrapper are now mutable (#5971):
  • pcommon.ImmutableByteSlice is deprecated in favor of pcommon.ByteSlice
  • pcommon.ImmutableFloat64Slice is deprecated in favor of pcommon.Float64Slice
  • pcommon.ImmutableUInt64Slice is deprecated in favor of pcommon.UInt64Slice
  • Temporarily deprecate pcommon.NewValueBytes that will be replaced with pcommon.NewValueBytesEmpty in 0.60.0
  • Deprecate pcommon.Map.UpsertBytes in favor of pcommon.Map.PutEmptyBytes (#6064)
  • Deprecate pcommon.Value.SetBytesVal in favor of pcommon.Value.SetEmptyBytesVal
  • Deprecate pcommon.New[Slice|Map]FromRaw functions in favor of New[Slice|Map]().FromRaw (#6045)
• Deprecate pcommon.Map.Insert* methods (#6051)
• Deprecate pcommon.Map.Upsert* methods in favor of pcommon.Map.Put* (#6064)
• Deprecate ptrace.TraceState in favor of pcommon.TraceState. (#6052)
  • ptrace.Span.TraceState in favor of ptrace.Span.TraceStateStruct().AsRaw()
  • ptrace.Span.SetTraceState in favor of ptrace.Span.TraceStateStruct().FromRaw
  • ptrace.SpanLink.TraceState in favor of ptrace.SpanLink.TraceStateStruct().AsRaw()
  • ptrace.SpanLink.SetTraceState in favor of ptrace.SpanLink.TraceStateStruct().FromRaw
  • TraceStateStruct is a temporary name that will be replaced back to TraceState in the next release.

💡 Enhancements 💡

• Add skip-get-modules builder flag to support isolated environment executions (#6009)
  • Skip unnecessary Go binary path validation when the builder is used with skip-compilation and skip-get-modules flags (#6026)
• Make the otlpreceiver support to use jsoniter to unmarshal JSON payloads. (#6040)
• Add mapstructure hook function for confmap.Unmarshaler interface (#6029)
• Add CopyTo and MoveTo methods to primitive slices (#6044)
• Add support to unmarshalls bytes into plogs.Logs with jsoniter in jsonUnmarshaler (#6021)
• Instead of exiting, ocb now generates a default Collector when no build configuration is supplied (#5752)

🧰 Bug fixes 🧰

• otlpjson: Correctly skip unknown JSON value types. (#6038)
• Fix reading resource attributes from trace JSON. (#6023)

v0.59.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated fields/funcs from service (#5907)
  • Remove ConfigProviderSettings.Location
  • Remove ConfigProviderSettings.MapProviders
  • Remove ConfigProviderSettings.MapConverters
  • Remove featuregate.Registry.MustAppy
• Remove deprecated funcs from pdata module. (#5911)
  • Remove pmetric.MetricDataPointFlags.String()
  • Remove pmetric.NumberDataPoint.FlagsStruct()
  • Remove pmetric.HistogramDataPoint.FlagsStruct()
  • Remove pmetric.ExponentialHistogramDataPoint.FlagsStruct()
  • Remove pmetric.SummaryDataPoint.FlagsStruct()
• Remove deprecated settings from obsreport, ProcessorSettings.Level and ExporterSettings.Level (#5918)
• Replace processorhelper.New[Traces|Metrics|Logs]Exporter with processorhelper.New[Traces|Metrics|Logs]ProcessorWithCreateSettings definition (#5915)
• Replace exporterhelper.New[Traces|Metrics|Logs]Exporter with exporterhelper.New[Traces|Metrics|Logs]ExporterWithContext definition (#5914)
• Replace component.NewExtensionFactory with component.NewExtensionFactoryWithStabilityLevel definition (#5917)
• Set TLS 1.2 as default for min_version for TLS configuration in case this property is not defined (affects servers). (#5956)

🚩 Deprecations 🚩

• Deprecate processorhelper.New[Traces|Metrics|Logs]ProcessorWithCreateSettings in favor of processorhelper.New[Traces|Metrics|Logs]Exporter (#5915)
• Deprecates LogRecord.Flags() and LogRecord.SetFlags() in favor of LogRecord.FlagsStruct() and LogRecord.SetFlagsStruct(). (#5972)
• Deprecate exporterhelper.New[Traces|Metrics|Logs]ExporterWithContext in favor of exporterhelper.New[Traces|Metrics|Logs]Exporter (#5914)
• Deprecate component.NewExtensionFactoryWithStabilityLevel in favor of component.NewExtensionFactory (#5917)
• Deprecate plog.SeverityNumber[UPPERCASE] constants (#5927)
• Deprecate pcommon.Map.InsertNull method (#5955)
• Deprecate FlagsStruct types (#5933):
  • MetricDataPointFlagsStruct -> MetricDataPointFlags
  • NewMetricDataPointFlagsStruct -> NewMetricDataPointFlags
• Deprecate builder distribution flags, use configuration. (#5946)
• Enforce naming conventions for Invalid[Trace|Span]ID: (#5969)
  • Deprecate funcs pcommon.InvalidTraceID and pcommon.InvalidSpanID in favor of vars pcommon.EmptyTraceID and pcommon.EmptySpanID
• Deprecate Update and Upsert methods of pcommon.Map (#5975)
• Deprecated the current MetricDataPointFlags API. The new API provides functions to check and set Flags. (#5999)
  • NumberDataPoint.Flags -> NumberDataPoint.FlagsImmutable
  • HistogramDataPoint.Flags -> HistogramDataPoint.FlagsImmutable
  • ExponentialHistogramDataPoint.Flags -> ExponentialHistogramDataPoint.FlagsImmutable
  • SummaryDataPoint.Flags -> SummaryDataPoint.FlagsImmutable
  • MetricDataPointFlags -> MetricDataPointFlagsImmutable
  • NewMetricDataPointFlags -> MetricDataPointFlagsImmutable

💡 Enhancements 💡

• Added MarshalerSizer interface to ptrace, plog, and pmetric packages. NewProtoMarshaler now returns a MarshalerSizer (#5929)
• Add support to unmarshalls bytes into pmetric.Metrics with jsoniter in jsonUnmarshaler(#5433)
• Add httpprovider to allow loading config files stored in HTTP (#5810)
• Added service.telemetry.traces.propagators configuration to set propagators for collector's internal spans. (#5572)
• Remove unnecessary duplicate code and allocations for reading enums in JSON. (#5928)
• Add "dist.build_tags" configuration option to support passing go build flags to builder. (#5659)
• Add an AsRaw func on the flags, lots of places to encode these flags. (#5934)
• Change pdata generated types to use type definition instead of aliases. (#5936)
  • Improves documentation, and makes code easier to read/understand.
• Log InstrumentationScope attributes in loggingexporter (#5976)
• Add UpsertEmpty, UpsertEmptyMap and UpsertEmptySlice methods to pcommon.Map (#5975)
• Add SetEmptyMapVal and SetEmptySliceVal methods to pcommon.Value (#5975)

🧰 Bug fixes 🧰

• Fix reading scope attributes for trace JSON, remove duplicate code. (#5930)
• otlpjson/trace: skip unknown fields instead of error. (#5931)
• Fix bug in setting the correct collector state after a configuration change event. (#5830)
• Fix json trace unmarshalling for numbers (#5924):
  • Accept both string and number for float64.
  • Accept both string and number for int32/uint32.
  • Read uint64 numbers without converting from int64.
• Fix persistent storage client not closing when shutting down (#6003)

v0.58.0 Beta

🛑 Breaking changes 🛑

• Remove the InstrumentationLibrary to Scope translation (part of transition to OTLP 0.19). (#5819)
  • This has a side effect that when sending JSON encoded telemetry using OTLP proto <= 0.15.0, telemetry will be dropped.
• Require the storage to be explicitly set for the (experimental) persistent queue (#5784)
• Remove deprecated confighttp.HTTPClientSettings.ToClientWithHost (#5803)
• Remove deprecated component stability helpers (#5802):
  • component.WithTracesExporterAndStabilityLevel
  • component.WithMetricsExporterAndStabilityLevel
  • component.WithLogsExporterAndStabilityLevel
  • component.WithTracesReceiverAndStabilityLevel
  • component.WithMetricsReceiverAndStabilityLevel
  • component.WithLogsReceiverAndStabilityLevel
  • component.WithTracesProcessorAndStabilityLevel
  • component.WithMetricsProcessorAndStabilityLevel
  • component.WithLogsProcessorAndStabilityLevel
• ABI breaking change: featuregate.Registry.Apply returns error now.
• Update minimum go version to 1.18 (#5795)
• Remove deprecated Flags API from pdata (#5814)
• Change confmap.Provider to return pointer to Retrieved (#5839)

🚩 Deprecations 🚩

• Deprecate duplicate settings in service.ConfigProvider, embed ResolverSettings (#5843)
• Deprecate featuregate.Registry.MustApply in favor of featuregate.Registry.Apply. (#5801)
• Deprecate the component.Factory.StabilityLevel(config.DataType) in favor of Stability per component (#5762):
  • component.ExporterFactory.TracesExporterStability
  • component.ExporterFactory.MetricsExporterStability
  • component.ExporterFactory.LogsExporterStability
  • component.ProcessorFactory.TracesProcessorStability
  • component.ProcessorFactory.MetricsProcessorStability
  • component.ProcessorFactory.LogsProcessorStability
  • component.ReceiverFactory.TracesReceiverStability
  • component.ReceiverFactory.MetricsReceiverStability
  • component.ReceiverFactory.LogsReceiverStability
• Deprecate obsreport.ProcessorSettings.Level and obsreport.ExporterSettings.Level, use MetricsLevel from CreateSettings (#5824)
• Deprecate processorhelper.New[Traces|Metrics|Logs]Processor in favor of processorhelper.New[Traces|Metrics|Logs]ProcessorWithCreateSettings (#5833)
• Deprecate MetricDataPointFlags.String(), no other pdata flags have this method (#5868)
• Deprecates FlagsStruct in favor of Flags (#5842)
  • FlagsStruct -> Flags
• Deprecate exporterhelper.New[Traces|Metrics|Logs]Exporter in favor of exporterhelper.New[Traces|Metrics|Logs]ExporterWithContext (#5834)

💡 Enhancements 💡

• Enable persistent queue in the build by default (#5828)
• Bump to opentelemetry-proto v0.19.0. (#5823)
• Expose Scope.Attributes in pdata (#5826)
• Remove unnecessary limitation on pcommon.Value.Equal that slices have only primitive values. (#5865)
• Add support to handle 404, 405 http error code as permanent errors in OTLP exporter (#5827)
• Enforce scheme name restrictions to all confmap.Provider implementations. (#5861)

v0.57.2 Beta

See the changelog for v0.57.0.

v0.57.1 Beta

This was a failed release.

v0.57.0 Beta

There isn't a valid core binary for this release. Use v0.57.2 instead.

🛑 Breaking changes 🛑

• Remove deprecated funcs/types from service related to Config (#5755)
• Changeconfighttp.ToClient to accept a component.Host (#5737)
• Remove deprecated funcs from pdata related to mutable slices (#5754)
• Change the following deprecated component functions to ensure a stability level is set:
  • component.WithTracesExporter
  • component.WithMetricsExporter
  • component.WithLogsExporter
  • component.WithTracesReceiver
  • component.WithMetricsReceiver
  • component.WithLogsReceiver
  • component.WithTracesProcessor
  • component.WithMetricsProcessor
  • component.WithLogsProcessor

🚩 Deprecations 🚩

• Deprecated the current Flag API. The new API provides functions to check and set Flags (#5790) (#5602):
  • NumberDataPoint.Flags -> NumberDataPoint.FlagsStruct
  • NumberDataPoint.SetFlags -> NumberDataPoint.FlagsStruct
  • HistogramDataPoint.Flags -> HistogramDataPoint.FlagsStruct
  • HistogramDataPoint.SetFlags -> HistogramDataPoint.FlagsStruct
  • ExponentialHistogramDataPoint.Flags -> ExponentialHistogramDataPoint.FlagsStruct
  • ExponentialHistogramDataPoint.SetFlags -> ExponentialHistogramDataPoint.FlagsStruct
  • SummaryDataPoint.Flags -> SummaryDataPoint.FlagsStruct
  • SummaryDataPoint.SetFlags -> SummaryDataPoint.FlagsStruct
  • MetricDataPointFlags -> MetricDataPointFlagsStruct
  • NewMetricDataPointFlags -> NewMetricDataPointFlagsStruct
  • MetricDataPointFlagsNone -> MetricDataPointFlagsStruct.NoRecordedValue
  • MetricDataPointFlagNoRecordedValue -> MetricDataPointFlagsStruct.NoRecordedValue
  • MetricDataPointFlag
• Deprecate the following component functions added to ensure a stability level is set:
  • component.WithTracesExporterAndStabilityLevel -> component.WithTracesExporter
  • component.WithMetricsExporterAndStabilityLevel -> component.WithMetricsExporter
  • component.WithLogsExporterAndStabilityLevel -> component.WithLogsExporter
  • component.WithTracesReceiverAndStabilityLevel -> component.WithTracesReceiver
  • component.WithMetricsReceiverAndStabilityLevel -> component.WithMetricsReceiver
  • component.WithLogsReceiverAndStabilityLevel -> component.WithLogsReceiver
  • component.WithTracesProcessorAndStabilityLevel -> component.WithTracesProcessor
  • component.WithMetricsProcessorAndStabilityLevel -> component.WithMetricsProcessor
  • component.WithLogsProcessorAndStabilityLevel -> component.WithLogsProcessor

💡 Enhancements 💡

• Make the in-memory and persistent queues more consistent (#5764)
• ocb now exits with an error if it fails to load the build configuration. (#5731)
• Deprecate HTTPClientSettings.ToClientWithHost (#5737)

🧰 Bug fixes 🧰

• Fix bug in ocb where flags did not take precedence. (#5726)

v0.56.0 Beta

💡 Enhancements 💡

• Add linux-ppc64le architecture to cross build tests in CI (#5645)
• client: perform case insensitive lookups in case the requested metadata value isn't found (#5646)
• loggingexporter: Decouple loglevel field from level of logged messages (#5678)
• Expose pcommon.NewSliceFromRaw function (#5679)
• loggingexporter: create the exporter's logger from the service's logger (#5677)
• Add otelcol_exporter_queue_capacity metrics show the collector's exporter queue capacity (#5475)
• Add support to handle 402, 413, 414, 431 http error code as permanent errors in OTLP exporter (#5685)

🧰 Bug fixes 🧰

• Fix Collector panic when disabling telemetry metrics (#5642)
• Fix Collector panic when featuregate value is empty (#5663)
• Fix confighttp.compression panic due to nil request.Body. (#5628)

v0.55.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated config.ServiceTelemetry (#5565)
• Remove deprecated config.ServiceTelemetryLogs (#5565)
• Remove deprecated config.ServiceTelemetryMetrics (#5565)

🚩 Deprecations 🚩

• Deprecate service.ConfigServiceTelemetry, service.ConfigServiceTelemetryLogs, and service.ConfigServiceTelemetryMetrics (#5565)
• Deprecate the following component functions to ensure a stability level is set (#5580):
  • component.WithTracesExporter -> component.WithTracesExporterAndStabilityLevel
  • component.WithMetricsExporter -> component.WithMetricsExporterAndStabilityLevel
  • component.WithLogsExporter -> component.WithLogsExporterAndStabilityLevel
  • component.WithTracesReceiver -> component.WithTracesReceiverAndStabilityLevel
  • component.WithMetricsReceiver -> component.WithMetricsReceiverAndStabilityLevel
  • component.WithLogsReceiver -> component.WithLogsReceiverAndStabilityLevel
  • component.WithTracesProcessor -> component.WithTracesProcessorAndStabilityLevel
  • component.WithMetricsProcessor -> component.WithMetricsProcessorAndStabilityLevel
  • component.WithLogsProcessor -> component.WithLogsProcessorAndStabilityLevel
• Deprecate Registry.Apply in service.featuregate (#5660)

💡 Enhancements 💡

• Components stability levels are now logged. By default components which haven't defined their stability levels, or which are unmaintained, deprecated or in development will log a message. (#5580)
• exporter/logging: Skip "bad file descriptor" sync errors (#5585)

🧰 Bug fixes 🧰

• Fix initialization of the OpenTelemetry MetricProvider. (#5571)
• Set log level for undefined stability level to debug. (#5635)

v0.54.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated GetLogger. (#5504)
• Remove deprecated configtest.LoadConfigMap (#5505)
• Remove deprecated config.Map (#5505)
• Remove deprecated config.MapProvider (#5505)
• Remove deprecated config.MapConverter (#5505)
• Remove deprecated config.Received (#5505)
• Remove deprecated config.CloseFunc (#5505)
• Deprecated pcommon.Value.NewValueBytes is brought back taking pcommon.ImmutableByteSlice as an argument instead of []byte (#5299)

🚩 Deprecations 🚩

• Use immutable slices for primitive types slices to restrict mutations. (#5299)
  • Value.NewValueMBytes func is deprecated in favor of Value.NewValueBytes func that takes ImmutableByteSlice instead of []byte
  • Value.SetMBytesVal func is deprecated in favor of Value.SetBytesVal func that takes pcommon.ImmutableByteSlice instead of []byte.
  • Value.BytesVal func is deprecated in favor of Value.BytesVal func that returns pcommon.ImmutableByteSlice instead of []byte.
  • <HistogramDataPoint|Buckets>.SetMBucketCounts funcs are deprecated in favor of <HistogramDataPoint|Buckets>.SetBucketCounts funcs that take pcommon.ImmutableUInt64Slice instead of []uint64.
  • <HistogramDataPoint|Buckets>.MBucketCounts funcs are deprecated in favor of <HistogramDataPoint|Buckets>.BucketCounts funcs that return pcommon.ImmutableUInt64Slice instead of []uint64.
  • HistogramDataPoint.SetMExplicitBounds func is deprecated in favor of HistogramDataPoint.SetExplicitBounds func that takes pcommon.ImmutableFloat64Slice instead of []float64.
  • HistogramDataPoint.MExplicitBounds func func is deprecated in favor of HistogramDataPoint.ExplicitBounds returns pcommon.ImmutableFloat64Slice instead of []float64.

💡 Enhancements 💡

• Deprecate HTTPClientSettings.ToClient in favor of HTTPClientSettings.ToClientWithHost (#5584)
• Use OpenCensus metric package for process metrics instead of stats package (#5486)
• Update OTLP to v0.18.0 (#5530)
• Log histogram min/max fields with logging exporter (#5520)

🧰 Bug fixes 🧰

• Update sum field of exponential histograms to make it optional (#5530)
• Remove redundant extension shutdown call (#5532)
• Refactor pipelines builder, fix some issues (#5512)
  • Unconfigured receivers are not identified, this was not a real problem in final binaries since the validation of the config catch this.
  • Allow configurations to contain "unused" receivers. Receivers that are configured but not used in any pipeline, this was possible already for exporters and processors.
  • Remove the enforcement/check that Receiver factories create the same instance for the same config.

v0.53.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated componenterror package. (#5420)
• Remove deprecated config.MapConverterFunc. (#5419)
• Remove AddCollectorVersionTag, enabled for long time already. (#5471)

🚩 Deprecations 🚩

• Move config.Map to its own package confmap which does not depend on any component concept (#5237)
  • config.Map -> confmap.ConfMap
  • config.MapProvider -> confmap.Provider
  • config.Received -> confmap.Received
  • config.NewReceivedFromMap -> confmap.NewReceived
  • config.CloseFunc -> confmap.CloseFunc
  • config.ChangeEvent -> confmap.ChangeEvent
  • config.MapConverter -> confmap.Converter
  • Package envmapprovider -> envprovider
  • Package filemapprovider -> fileprovider
  • Package yamlmapprovider -> yamlprovider
  • Package expandmapconverter -> expandconverter
  • Package filemapprovider -> fileprovider
  • Package overwritepropertiesmapconverter -> overwritepropertiesconverter
• Deprecate component.ExtensionDefaultConfigFunc in favor of component.ExtensionCreateDefaultConfigFunc (#5451)
• Deprecate confmap.Received.AsMap in favor of confmap.Received.AsConf (#5465)
• Deprecate confmap.Conf.Set, not used anywhere for the moment (#5485)

💡 Enhancements 💡

• Move service.mapResolver to confmap.Resolver (#5444)
• Add linux-arm architecture to cross build tests in CI (#5472)

🧰 Bug fixes 🧰

• Fixes the "service.version" label value for internal metrics, always was "latest" in core/contrib distros. (#5449).
• Send correct batch stats when SendBatchMaxSize is set (#5385)
• TLS MinVersion and MaxVersion defaults will be handled by crypto/tls (#5480)

v0.52.0 Beta

🛑 Breaking changes 🛑

• Remove configunmarshaler.Unmarshaler interface, per deprecation comment (#5348)
• Remove deprecated pdata funcs/structs from v0.50.0 (#5345)
• Remove deprecated pdata getters and setters of primitive slice values: Value.BytesVal, Value.SetBytesVal, Value.UpdateBytes, Value.InsertBytes, Value.UpsertBytes, <HistogramDataPoint|Buckets>.BucketCounts, <HistogramDataPoint|Buckets>.SetBucketCounts, HistogramDataPoint.ExplicitBounds, HistogramDataPoint.SetExplicitBounds (#5347)
• Remove deprecated featuregate funcs/structs from v0.50.0 (#5346)
• Remove access to deprecated members of the config.Retrieved struct (#5363)
• Replace usage of config.MapConverterFunc with config.MapConverter (#5382)

🚩 Deprecations 🚩

• Deprecate config.Config and config.Service, use service.Config* (#4608)
• Deprecate componenterror package, move everything to component (#5383)
• pcommon.Value.NewValueBytes is deprecated in favor of Value.NewValueMBytes in preparation of migration to immutable slices (#5367)

💡 Enhancements 💡

• Update OTLP to v0.17.0 (#5335)
• Add optional min/max fields to histograms (#5399)
• User-defined Resource attributes can be specified under service.telemetry.resource configuration key and will be included as metric labels for own telemetry. If service.instance.id is not specified it will be auto-generated. Previously service.instance.id was always auto-generated, so the default of the new behavior matches the old behavior. (#5402)

v0.51.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated model module, everything is available in pdata and semconv. (#5281)
  • Old versions of the module are still available, but no new versions will be released.
• Remove deprecated LogRecord.Name field. (#5202)

🚩 Deprecations 🚩

• In preparation of migration to immutable slices for primitive type items, the following methods are renamed (#5344)
  • Value.BytesVal func is deprecated in favor of Value.MBytesVal.
  • Value.SetBytesVal func is deprecated in favor of Value.SetMBytesVal.
  • Value.UpdateBytes func is deprecated in favor of Value.UpdateMBytes.
  • Value.InsertBytes func is deprecated in favor of Value.InsertMBytes.
  • Value.UpsertBytes func is deprecated in favor of Value.UpsertMBytes.
  • <HistogramDataPoint|Buckets>.BucketCounts funcs are deprecated in favor of <HistogramDataPoint|Buckets>.MBucketCounts.
  • <HistogramDataPoint|Buckets>.SetBucketCounts funcs are deprecated in favor of <HistogramDataPoint|Buckets>.SetMBucketCounts.
  • HistogramDataPoint.ExplicitBounds func is deprecated in favor of HistogramDataPoint.MExplicitBounds.
  • HistogramDataPoint.SetExplicitBounds func is deprecated in favor of HistogramDataPoint.SetMExplicitBounds.

💡 Enhancements 💡

• pdata: Expose pcommon.NewSliceFromRaw and pcommon.Slice.AsRaw functions (#5311)

🧰 Bug fixes 🧰

• Fix Windows Event Logs ignoring user-specified logging options (#5298)

v0.50.0 Beta

🛑 Breaking changes 🛑

• Remove pdata deprecated funcs from 2 versions (v0.48.0) ago. (#5219)
• Remove non pdata deprecated funcs/structs (#5220)
• pmetric.Exemplar.ValueType() now returns new type ExemplarValueType (#5233)
• Remove deprecated Delete pdata func in favor of pdata.Remove from (v0.47.0). (#5307)

🚩 Deprecations 🚩

• Deprecate configunmarshaler package, move it to internal (#5151)
• Deprecate all API in model/semconv. The package is moved to a new semconv module (#5196)
• Deprecate access to config.Retrieved fields, use the newly added funcs to interact with the internal fields (#5198)
• Deprecate p<signal>otlp.Request.Set<Logs|Metrics|Traces> (#5234)
  • plogotlp.Request.SetLogs func is deprecated in favor of plogotlp.NewRequestFromLogs
  • pmetricotlp.Request.SetMetrics func is deprecated in favor of pmetricotlp.NewRequestFromMetrics
  • ptraceotlp.Request.SetTraces func is deprecated in favor of ptraceotlp.NewRequestFromTraces
• pmetric.NumberDataPoint.ValueType() now returns new type NumberDataPointValueType (#5233)
  • pmetric.MetricValueType is deprecated in favor of NumberDataPointValueType
  • pmetric.MetricValueTypeNone is deprecated in favor of NumberDataPointValueTypeNone
  • pmetric.MetricValueTypeInt is deprecated in favor of NumberDataPointValueTypeInt
  • pmetric.MetricValueTypeDouble is deprecated in favor of NumberDataPointValueTypeDouble
• Deprecate plog.LogRecord.SetName() function (#5230)
• Deprecate global featuregate funcs in favor of GetRegistry and a public Registry type (#5160)

💡 Enhancements 💡

• Add jsoniter Unmarshaller (#4817)

• Extend config.Map.Unmarshal hook to check map key string to any TextUnmarshaler not only ComponentID (#5244)

• Collector will no longer print error with stack trace when the collector is shutdown due to a context cancel. (#5258)

🧰 Bug fixes 🧰

• Fix translation from otlp.Request to pdata representation, changes to the returned pdata not all reflected to the otlp.Request (#5197)
• exporterhelper now properly consumes any remaining items on stop (#5203)
• pdata: Fix copying of Value with ValueTypeBytes type (#5267)
• pdata: Fix copying of metric fields of primitive items slice type (#5271)

v0.49.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated structs/funcs from previous versions (#5131)
• Do not set TraceProvider to global otel (#5138)
• Remove deprecated funcs from otlpgrpc (#5144)
• Add Scheme to MapProvider interface (#5068)
• Do not set MeterProvider to global otel (#5146)
• Make InstrumentationLibrary<signal>ToScope helper functions unexported (#5164)
• Remove Log's "ShortName" from logging exporter output (#5172)
• exporter/otlp: Retry RESOURCE_EXHAUSTED only if the server returns RetryInfo (#5147)

🚩 Deprecations 🚩

• All pdata related APIs from model (model/pdata, model/otlp and model/otlpgrpc) are deprecated in favor of packages in the new pdata module separated by telemetry signal type (#5168)
  • model/pdata, model/otlp -> pdata/pcommon, pdata/plog, pdata/pmetric, pdata/ptrace
  • model/otlpgrpc -> pdata/plog/plogotlp, pdata/pmetric/pmetricotlp, pdata/ptrace/ptraceotlp
• Deprecate configmapprovider package, replace with mapconverter (#5167)
• Deprecate service.MustNewConfigProvider and service.MustNewDefaultConfigProviderin favor of service.NewConfigProvider (#4936)

💡 Enhancements 💡

• OTLP HTTP receiver will use HTTP/2 over TLS if client supports it (#5109)
• Add ObservedTimestamp field to pdata.LogRecord (#5171)

🧰 Bug fixes 🧰

• Setup the correct meter provider if telemetry.useOtelForInternalMetrics featuregate enabled (#5146)
• Fix pdata.Value.asRaw() to correctly return elements of Slice and Map type (#5153)
• Update pdata.Slice.asRaw() to return raw representation of Slice and Map elements (#5157)
• The codepath through the OTLP receiver for gRPC was not translating the InstrumentationLibrary* to Scope* (#5189)

v0.48.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated consumerhelper package (#5028)
• Remove pdata InternalRep deprecated funcs (#5018)
• Remove service/defaultcomponents deprecated package (#5019)
• Remove deprecated UseOpenTelemetryForInternalMetrics (#5026)
• Change outcome of pdata.Value.MapVal() and pdata.Value.SliceVal() functions misuse. In case of type mismatch, they now return an invalid zero-initialized instance instead of a detached collection (#5034)
• OTLP JSON field changes following upgrade to OTLP v0.15.0:
  • "instrumentationLibraryLogs" is now "scopeLogs"
  • "instrumentationLibraryMetrics" is now "scopeMetrics"
  • "instrumentationLibrarySpans" is now "scopeSpans"
  • "instrumentationLibrary" is now "scope"
• AsString for pdata.Value now returns the JSON-encoded string of floats. (#4934)

🚩 Deprecations 🚩

• Move MapProvider to config, split providers in their own package (#5030)
• API related to pdata.AttributeValue is deprecated in favor of pdata.Value (#4978)
  • pdata.AttributeValue struct is deprecated in favor of pdata.Value
  • pdata.AttributeValueType type is deprecated in favor of pdata.ValueType
  • pdata.AttributeValueType... constants are deprecated in favor of pdata.ValueType...
  • pdata.NewAttributeValue... funcs are deprecated in favor of pdata.NewValue...
• Deprecate featureflags.FlagValue.SetSlice, unnecessary public (#5053)
• Remove "Attribute" part from common pdata collections names (#5001)
  • Deprecate pdata.AttributeMap struct in favor of pdata.Map
  • Deprecate pdata.NewAttributeMap func in favor of pdata.NewMap
  • Deprecate pdata.NewAttributeMapFromMap func in favor of pdata.NewMapFromRaw
  • Deprecate pdata.AttributeValueSlice struct in favor of pdata.Slice
  • Deprecate pdata.NewAttributeValueSlice func in favor of pdata.NewSlice
• Deprecate LogRecord.Name(), it was deprecated in the data model (#5054)
• Rename Array type of pdata.Value to Slice (#5066)
  • Deprecate pdata.AttributeValueTypeArray type in favor of pdata.ValueTypeSlice
  • Deprecate pdata.NewAttributeValueArray func in favor of pdata.NewValueSlice
• Deprecate global flag in featuregates (#5060)
• Deprecate last funcs/structs in componenthelper (#5069)
• Change structs in otlpgrpc to follow standard go encoding interfaces (#5062)
  • Deprecate UnmarshalJSON[Traces|Metrics|Logs][Request|Response] in favor of UnmarshalJSON.
  • Deprecate [Traces|Metrics|Logs][Request|Response].Marshal in favor of MarshalProto.
  • Deprecate UnmarshalJSON[Traces|Metrics|Logs][Request|Response] in favor of UnmarshalProto.
• Deprecating following pdata methods/types following OTLP v0.15.0 upgrade (#5076): - InstrumentationLibrary is now InstrumentationScope - NewInstrumentationLibrary is now NewInstrumentationScope - InstrumentationLibraryLogsSlice is now ScopeLogsSlice - NewInstrumentationLibraryLogsSlice is now NewScopeLogsSlice - InstrumentationLibraryLogs is now ScopeLogs - NewInstrumentationLibraryLogs is now NewScopeLogs - InstrumentationLibraryMetricsSlice is now ScopeMetricsSlice - NewInstrumentationLibraryMetricsSlice is now NewScopeMetricsSlice - InstrumentationLibraryMetrics is now ScopeMetrics - NewInstrumentationLibraryMetrics is now NewScopeMetrics - InstrumentationLibrarySpansSlice is now ScopeSpansSlice - NewInstrumentationLibrarySpansSlice is now NewScopeSpansSlice - InstrumentationLibrarySpans is now ScopeSpans - NewInstrumentationLibrarySpans is now NewScopeSpans

💡 Enhancements 💡

• Add semconv definitions for v1.9.0 (#5090)
• Change outcome of pdata.Metric.<Gauge|Sum|Histogram|ExponentialHistogram>() functions misuse. In case of type mismatch, they don't panic right away but return an invalid zero-initialized instance for consistency with other OneOf field accessors (#5035)
• Update OTLP to v0.15.0 (#5064)
• Adding support for transition from older versions of OTLP to OTLP v0.15.0 (#5085)

🧰 Bug fixes 🧰

• Add missing files for semconv definitions v1.7.0 and v1.8.0 (#5091)
• The featuregates were not configured from the "--feature-gates" flag on windows service (#5060)
• Fix Semantic Convention Schema URL definition for 1.5.0 and 1.6.1 versions (#5103)

v0.47.0 Beta

🛑 Breaking changes 🛑

• Remove Type funcs in pdata (#4933)
• Remove all deprecated funcs/structs from v0.46.0 (#4995)

🚩 Deprecations 🚩

• pdata: deprecate funcs working with InternalRep (#4957)
• Deprecate pdata.AttributeMap.Delete in favor of pdata.AttributeMap.Remove (#4914)
• Deprecate consumerhelper, move helpers to consumer (#5006)

💡 Enhancements 💡

• Add pdata.AttributeMap.RemoveIf, which is a more performant way to remove multiple keys (#4914)
• Add pipeline key with pipeline identifier to processor loggers (#4968)
• Add a new yaml provider, allows providing yaml bytes (#4998)

🧰 Bug fixes 🧰

• Collector Run will now exit when a context cancels (#4954)
• Add missing droppedAttributesCount to pdata generated resource (#4979)
• Collector Run will now set state to Closed if startup fails (#4974)

v0.46.0 Beta

🛑 Breaking changes 🛑

• Change otel collector to enable open telemetry metrics through feature gate instead of a constant (#4912)
• Remove support for legacy otlp/http port. (#4916)
• Remove deprecated funcs in pdata (#4809)
• Remove deprecated Retrieve funcs/calls (#4922)
• Remove deprecated NewConfigProvider funcs (#4937)

🚩 Deprecations 🚩

• Deprecated funcs config.DefaultConfig, confighttp.DefaultHTTPSettings, exporterhelper.DefaultTimeoutSettings, exporthelper.DefaultQueueSettings, exporterhelper.DefaultRetrySettings, testcomponents.DefaultFactories, and scraperhelper.DefaultScraperControllerSettings in favour for their NewDefault method to adhere to contribution guidelines (#4865)
• Deprecated funcs componenthelper.StartFunc, componenthelper.ShutdownFunc in favour of component.StartFunc and component.ShutdownFunc (#4803)
• Move helpers from extensionhelper to component (#4805)
  • Deprecated extensionhelper.CreateDefaultConfig in favour of component.ExtensionDefaultConfigFunc
  • Deprecated extensionhelper.CreateServiceExtension in favour of component.CreateExtensionFunc
  • Deprecated extensionhelper.NewFactory in favour of component.NewExtensionFactory
• Move helpers from processorhelper to component (#4889)
  • Deprecated processorhelper.CreateDefaultConfig in favour of component.ProcessorDefaultConfigFunc
  • Deprecated processorhelper.WithTraces in favour of component.WithTracesProcessor
  • Deprecated processorhelper.WithMetrics in favour of component.WithMetricsProcessor
  • Deprecated processorhelper.WithLogs in favour of component.WithLogsProcessor
  • Deprecated processorhelper.NewFactory in favour of component.NewProcessorFactory
• Move helpers from exporterhelper to component (#4899)
  • Deprecated exporterhelper.CreateDefaultConfig in favour of component.ExporterDefaultConfigFunc
  • Deprecated exporterhelper.WithTraces in favour of component.WithTracesExporter
  • Deprecated exporterhelper.WithMetrics in favour of component.WithMetricsExporter
  • Deprecated exporterhelper.WithLogs in favour of component.WithLogsExporter
  • Deprecated exporterhelper.NewFactory in favour of component.NewExporterFactory
• Move helpers from receiverhelper to component (#4891)
  • Deprecated receiverhelper.CreateDefaultConfig in favour of component.ReceiverDefaultConfigFunc
  • Deprecated receiverhelper.WithTraces in favour of component.WithTracesReceiver
  • Deprecated receiverhelper.WithMetrics in favour of component.WithMetricsReceiver
  • Deprecated receiverhelper.WithLogs in favour of component.WithLogsReceiver
  • Deprecated receiverhelper.NewFactory in favour of component.NewReceiverFactory

💡 Enhancements 💡

• Add validation to check at least one endpoint is specified in otlphttpexporter's configuration (#4860)
• Implement default client authenticators (#4837)

🧰 Bug fixes 🧰

• Initialized logger with collector to avoid potential race condition panic on Shutdown (#4827)
• In addition to traces, now logs and metrics processors will start the memory limiter. Added thread-safe logic so only the first processor can launch the checkMemLimits go-routine and the last processor that calls shutdown to terminate it; this is done per memory limiter instance. Added memory limiter factory to cache initiated object and be reused by similar config. This guarantees a single running checkMemLimits per config (#4886)
• Resolved race condition in collector when calling Shutdown (#4878)

v0.45.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated funcs in configtelemetry (#4808)
• otlphttp and otlp exporters enable gzip compression by default (#4632)

🚩 Deprecations 🚩

• Deprecate service/defaultcomponents go package (#4622)
• Deprecate pdata.NumberDataPoint.Type() and pdata.Exemplar.Type() in favor of NumberDataPoint.ValueType() and Exemplar.ValueType() (#4850)

💡 Enhancements 💡

• Reject invalid queue size exporterhelper (#4799)
• Transform configmapprovider.Retrieved interface to a struct (#4789)
• Added feature gate summary to zpages extension (#4834)
• Add support for reloading TLS certificates (#4737)

🧰 Bug fixes 🧰

• confighttp: Allow CORS requests with configured auth (#4869)

v0.44.0 Beta

🛑 Breaking changes 🛑

• Updated to OTLP 0.12.0. Deprecated traces and metrics messages that existed in 0.11.0 are no longer converted to the messages and fields that replaced the deprecated ones. Received deprecated messages and fields will be now ignored. In OTLP/JSON in the instrumentationLibraryLogs object the "logs" field is now named "logRecords" (#4724)
• Deprecate service.NewWindowsService, add service.NewSvcHandler (#4783).

🚩 Deprecations 🚩

• Deprecate service.NewConfigProvider, and a new version service.MustNewConfigProvider (#4734).

💡 Enhancements 💡

• Invalid requests now return an appropriate unsupported (405) or method not allowed (415) response (#4735)
• client.Info: Add Host property for Metadata (#4736)

v0.43.1 Beta

🧰 Bug fixes 🧰

• ExpandStringValues function support to map[string]interface{} (#4748)

v0.43.0 Beta

🛑 Breaking changes 🛑

• Change configmapprovider.Provider to accept a location for retrieve (#4657)
• Change Properties Provider to be a Converter (#4666)
• Define a type WatcherFunc for onChange func instead of func pointer (#4656)
• Remove deprecated configtest.LoadConfig and configtest.LoadConfigAndValidate (#4659)
• Move service.ConfigMapConverterFunc to config.MapConverterFunc (#4673)
  • Add context to config.MapConverterFunc (#4678)
• Builder: the skip compilation should only be supplied as a CLI flag. Previously, it was possible to specify that in the YAML file, contrary to the original intention (#4645)
• Builder: Remove deprecated config option module::core (#4693)
• Remove deprecate flags --metrics-level and --metrics-addr (#4695)
  • Usages of --metrics-level={VALUE} can be replaced by --set=service.telemetry.metrics.level={VALUE};
  • Usages of --metrics-addr={VALUE} can be replaced by --set=service.telemetry.metrics.address={VALUE};
• Updated confighttp ToClient to support passing telemetry settings for instrumenting otlphttp exporter(#4449)
• Remove support to some arches and platforms from ocb (opentelemetry-collector-builder) (#4710)
• Remove deprecated legacy path ("v1/trace") support for otlp http receiver (#4720)
• Change the service.NewDefaultConfigProvider to accept a slice of location strings (#4727).

🚩 Deprecations 🚩

• Deprecate configtelemetry.Level.Set() (#4700)

🧰 Bug fixes 🧰

• Ensure Windows path (e.g: C:) is recognized as a file path (#4726)
• Fix structured logging issue for windows service (#4686)

💡 Enhancements 💡

• Expose experimental API configmapprovider.NewExpandConverter() (#4672)
• service.NewConfigProvider: copy slice argument, disallow changes from caller to the input slice (#4729)
• confighttp and configgrpc: New config option include_metadata to persist request metadata/headers in client.Info.Metadata (experimental) (#4547)
• Remove expand cases that cannot happen with config.Map (#4649)
• Add max_request_body_size to confighttp.HTTPServerSettings (#4677)
• Move compression.go into confighttp.go to internalize functions in compression.go file. (#4651)
  • create configcompression package to manage compression methods in confighttp and configgrpc
• Add support for cgroupv2 memory limit (#4654)
• Enable end users to provide multiple files for config location (#4727)

v0.42.0 Beta

🛑 Breaking changes 🛑

• Remove configmapprovider.NewInMemory() (#4507)
• Disallow direct implementation of configmapprovider.Retrieved (#4577)
• configauth: remove interceptor functions from the ServerAuthenticator interface (#4583)
• Replace ConfigMapProvider and ConfigUnmarshaler in collector settings by one simpler ConfigProvider (#4590)
• Remove deprecated consumererror.Combine (#4597)
• Remove configmapprovider.NewDefault, configmapprovider.NewExpand, configmapprovider.NewMerge (#4600)
  • The merge functionality is now embedded into service.NewConfigProvider (#4637).
• Move configtest.LoadConfig and configtest.LoadConfigAndValidate to servicetest (#4606)
• Builder: Remove deprecated include-core flag (#4616)
• Collector telemetry level must now be accessed through an atomic function. (#4549)

💡 Enhancements 💡

• confighttp: add client-side compression support. (#4441)
  • Each exporter should remove compression field if they have and should use confighttp.HTTPClientSettings
• Allow more zap logger configs: disable_caller, disable_stacktrace, output_paths, error_output_paths, initial_fields (#1048)
• Allow the custom zap logger encoding (#4532)
• Collector self-metrics may now be configured through the configuration file. (#4069)
  • CLI flags for configuring self-metrics are deprecated and will be removed in a future release.
  • service.telemetry.metrics.level and service.telemetry.metrics.address should be used to configure collector self-metrics.
• configauth: add helpers to create new server authenticators. (#4558)
• Refactor configgrpc for compression methods (#4624)
• Add an option to allow config.Map conversion in the service.ConfigProvider (#4634)
• Added support to expose gRPC framework's logs as part of collector logs (#4501)
• Builder: Enable unmarshal exact to help finding hard to find typos #4644

🧰 Bug fixes 🧰

• Fix merge config map provider to close the watchers (#4570)
• Fix expand map provider to call close on the base provider (#4571)
• Fix correct the value of otelcol_exporter_send_failed_requests (#4629)
• otlp receiver: Fix legacy port cfg value override and HTTP server starting bug (#4631)

v0.41.0 Beta

🛑 Breaking changes 🛑

• Remove reference to defaultcomponents in core and deprecate include_core flag (#4087)
• Remove config.NewConfigMapFrom[File|Buffer], add testonly version (#4502)
• configtls: TLS 1.2 is the new default minimum version (#4503)
• confighttp: ToServer now accepts a component.Host, in line with gRPC's counterpart (#4514)
• CORS configuration for OTLP/HTTP receivers has been moved into a cors: block, instead of individual cors_allowed_origins and cors_allowed_headers settings (#4492)

💡 Enhancements 💡

• OTLP/HTTP receivers now support setting the Access-Control-Max-Age header for CORS caching. (#4492)
• client.Info pre-populated for all receivers using common helpers like confighttp and configgrpc (#4423)

🧰 Bug fixes 🧰

• Fix handling of corrupted records by persistent buffer (experimental) (#4475)

💡 Enhancements 💡

• Extending the contribution guide to help clarify what is acceptable defaults and recommendations.

v0.40.0 Beta

🛑 Breaking changes 🛑

• Package client refactored (#4416) and auth data included in it (#4422). Final PR to be merged in the next release (#4423)
• Remove pdata.AttributeMap.InitFromMap (#4429)
• Updated configgrpc ToDialOptions to support passing providers to instrumentation library (#4451)
• Make state information propagation non-blocking on the collector (#4460)

💡 Enhancements 💡

• Add semconv 1.7.0 and 1.8.0 (#4452)
• Added feature-gates CLI flag for controlling feature gate state. (#4368)
• Add a default user-agent header to the OTLP/gRPC and OTLP/HTTP exporters containing collector build information (#3970)

v0.39.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated config (already no-op) ballast_size_mib in memorylimiterprocessor (#4365)
• Remove config.Receivers, config.Exporters, config.Processors, and config.Extensions. Use map directly (#4344)
• Remove component.BaseProcessorFactory, use processorhelper.NewFactory instead (#4175)
• Force usage of exporterhelper.NewFactory to implement component.ExporterFactory (#4338)
• Force usage of receiverhelper.NewFactory to implement component.ReceiverFactory (#4338)
• Force usage of extensionhelper.NewFactory to implement component.ExtensionFactory (#4338)
• Move service/parserprovider package to config/configmapprovider (#4206)
  • Rename MapProvider interface to Provider
  • Remove MapProvider from helper names
• Renamed slice-valued pdata types and functions for consistency. (#4325)
  • Rename pdata.AnyValueArray to pdata.AttributeValueSlice
  • Rename ArrayVal() to SliceVal()
  • Rename SetArrayVal() to SetSliceVal()
• Remove config.Pipeline.Name (#4326)
• Rename config.Mapprovider as configmapprovider.Provider (#4337)
• Move config.WatchableRetrieved and config.Retrieved interfaces to config/configmapprovider package (#4337)
• Remove config.Pipeline.InputDataType (#4343)
• otlpexporter: Do not retry on PermissionDenied and Unauthenticated (#4349)
• Enable configuring collector metrics through service config file. (#4069)
  • New service::telemetry::metrics structure added to configuration
  • Existing metrics configuration CLI flags are deprecated and to be removed in the future.
  • --metrics-prefix is no longer operative; the prefix is determined by the value of service.buildInfo.Command.
  • --add-instance-id is no longer operative; an instance ID will always be added.
• Remove deprecated funcs consumererror.As[Traces|Metrics|Logs] (#4364)
• Remove support to expand env variables in default configs (#4366)

💡 Enhancements 💡

• Supports more compression methods(snappy and zstd) for configgrpc, in addition to current gzip (#4088)
• Moved the OpenTelemetry Collector Builder to core (#4307)

🧰 Bug fixes 🧰

• Fix AggregationTemporality and IsMonotonic when metric descriptors are split in the batch processor (#4389)

v0.38.0 Beta

🛑 Breaking changes 🛑

• Removed configauth.HTTPClientAuthenticator and configauth.GRPCClientAuthenticator in favor of configauth.ClientAuthenticator. (#4255)
• Rename parserprovider.MapProvider as config.MapProvider. (#4178)
• Rename parserprovider.Watchable as config.WatchableMapProvider. (#4178)
• Remove deprecated no-op flags to setup Collector's logging "--log-level", "--log-profile", "--log-format". (#4213)
• Move cmd/pdatagen as internal package model/internal/cmd/pdatagen. (#4243)
• Use directly the ComponentID in configauth. (#4238)
• Refactor configauth, getters use the map instead of iteration. (#4234)
• Change scraperhelper to follow the recommended append model for pdata. (#4202)

💡 Enhancements 💡

• Update proto to 0.11.0. (#4209)
• Change pdata to use the newly added [Traces|Metrics|Logs]Data. (#4214)
• Add ExponentialHistogram field to pdata. (#4219)
• Make sure otlphttp exporter tests include TraceID and SpanID. (#4268)
• Use multimod tool in release process. (#4229)
• Change queue metrics to use opencensus metrics instead of stats, close to otel-go. (#4220)
• Make receiver data delivery guarantees explicit (#4262)
• Simplify unmarshal logic by adding more supported hooks. (#4237)
• Add unmarshaler for otlpgrpc.[]Request and otlpgrpc.[]Response (#4215)

v0.37.0 Beta

🛑 Breaking changes 🛑

• Move configcheck.ValidateConfigFromFactories as internal function in service package (#3876)
• Rename configparser.Parser as config.Map (#4075)
• Rename component.DefaultBuildInfo() to component.NewDefaultBuildInfo() (#4129)
• Rename consumererror.Permanent to consumererror.NewPermanent (#4118)
• Rename config.NewID to config.NewComponentID and config.NewIDFromString to config.NewComponentIDFromString (#4137)
• Rename config.NewIDWithName to config.NewComponentIDWithName (#4151)
• Move extension/storage to extension/experimental/storage (#4082)
• Rename obsreporttest.SetupRecordedMetricsTest() to obsreporttest.SetupTelemetry() and obsreporttest.TestTelemetrySettings to obsreporttest.TestTelemetry (#4157)

💡 Enhancements 💡

• Add Gen dependabot into CI (#4083)
• Update OTLP to v0.10.0 (#4045).
• Add Flags field to NumberDataPoint, HistogramDataPoint, SummaryDataPoint (#4081).
• Add feature gate library (#4108)
• Add version to the internal telemetry metrics (#4140)

🧰 Bug fixes 🧰

• Fix panic when not using service.NewCommand (#4139)

v0.36.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated pdata.AttributeMapToMap (#3994)
• Move ValidateConfig from configcheck to configtest (#3956)
• Remove mem-ballast-size-mib, already deprecated and no-op (#4005)
• Remove semconv.AttributeMessageType (#4020)
• Remove semconv.AttributeHTTPStatusText (#4015)
• Remove squash on configtls.TLSClientSetting and move TLS client configs under tls (#4063)
• Rename TLS server config *configtls.TLSServerSetting from tls_settings to tls (#4063)
• Split service.Collector from the cobra.Command (#4074)
• Rename memorylimiter to memorylimiterprocessor (#4064)

💡 Enhancements 💡

• Create new semconv package for v1.6.1 (#3948)
• Add AttributeValueBytes support to AsString (#4002)
• Add AttributeValueTypeBytes support to AttributeMap.AsRaw (#4003)
• Add MeterProvider to TelemetrySettings (#4031)
• Add configuration to setup collector logs via config file. (#4009)

v0.35.0 Beta

🛑 Breaking changes 🛑

• Remove the legacy gRPC port(55680) support in OTLP receiver (#3966)
• Rename configparser.Parser to configparser.ConfigMap (#3964)
• Remove obsreport.ScraperContext, embed into StartMetricsOp (#3969)
• Remove dependency on deprecated go.opentelemetry.io/otel/oteltest (#3979)
• Remove deprecated pdata.AttributeValueToString (#3953)
• Remove deprecated pdata.TimestampFromTime. Closes: #3925 (#3935)

💡 Enhancements 💡

• Add TelemetryCreateSettings (#3984)
• Only initialize collector telemetry once (#3918)
• Add trace context info to LogRecord log (#3959)
• Add new view for AWS ECS health check extension. (#3776)

v0.34.0 Beta

🛑 Breaking changes 🛑

• Artifacts are no longer published in this repository, check here (#3941)
• Remove deprecated tracetranslator.AttributeValueToString and tracetranslator.AttributeMapToMap (#3873)
• Change semantic conventions for status (code, msg) as per specifications (#3872)
• Move fileexporter to contrib (#3474)
• Move jaegerexporter to contrib (#3474)
• Move kafkaexporter to contrib (#3474)
• Move opencensusexporter to contrib (#3474)
• Move prometheusexporter to contrib (#3474)
• Move prometheusremotewriteexporter to contrib (#3474)
• Move zipkinexporter to contrib (#3474)
• Move attributeprocessor to contrib (#3474)
• Move filterprocessor to contrib (#3474)
• Move probabilisticsamplerprocessor to contrib (#3474)
• Move resourceprocessor to contrib (#3474)
• Move spanprocessor to contrib (#3474)
• Move hostmetricsreceiver to contrib (#3474)
• Move jaegerreceiver to contrib (#3474)
• Move kafkareceiver to contrib (#3474)
• Move opencensusreceiver to contrib (#3474)
• Move prometheusreceiver to contrib (#3474)
• Move zipkinreceiver to contrib (#3474)
• Move bearertokenauthextension to contrib (#3474)
• Move healthcheckextension to contrib (#3474)
• Move oidcauthextension to contrib (#3474)
• Move pprofextension to contrib (#3474)
• Move translator/internaldata to contrib (#3474)
• Move translator/trace/jaeger to contrib (#3474)
• Move translator/trace/zipkin to contrib (#3474)
• Move testbed to contrib (#3474)
• Move exporter/exporterhelper/resource_to_telemetry to contrib (#3474)
• Move processor/processorhelper/attraction to contrib (#3474)
• Move translator/conventions to model/semconv (#3901)

🚩 Deprecations 🚩

• Add pdata.NewTimestampFromTime, deprecate pdata.TimestampFromTime (#3868)
• Add pdata.NewAttributeMapFromMap, deprecate pdata.AttributeMap.InitFromMap (#3936)

v0.33.0 Beta

🛑 Breaking changes 🛑

• Rename configloader interface to configunmarshaler (#3774)
• Remove LabelsMap from all the metrics points (#3706)
• Update generated K8S attribute labels to fix capitalization (#3823)

💡 Enhancements 💡

• Collector has now full support for metrics proto v0.9.0.

v0.32.0 Beta

This release is marked as "bad" since the metrics pipelines will produce bad data.

• See https://github.com/open-telemetry/opentelemetry-collector/issues/3824

🛑 Breaking changes 🛑

• Rename CustomUnmarshable interface to Unmarshallable (#3774)

💡 Enhancements 💡

• Change default OTLP/HTTP port number from 55681 to 4318 (#3743)
• Update OTLP proto to v0.9.0 (#3740)
  • Remove SetValue/Value func for NumberDataPoint/Exemplar (#3730)
  • Remove IntGauge/IntSumfrom pdata (#3731)
  • Remove IntDataPoint from pdata (#3735)
  • Add support for Bytes attribute type (#3756)
  • Add SchemaUrl field (#3759)
  • Add Attributes to NumberDataPoint, HistogramDataPoint, SummaryDataPoint (#3761)
• conventions translator: Replace with conventions generated from spec v1.5.0 (#3494)
• prometheus receiver: Add ToMetricPdata method (#3695)
• Make configsource Watchable an optional interface (#3792)
• obsreport exporter: Change to accept ExporterCreateSettings (#3789)

🧰 Bug fixes 🧰

• configgrpc: Use chained interceptors in the gRPC server (#3744)
• prometheus receiver: Use actual interval startTimeMs for cumulative types (#3694)
• jaeger translator: Fix bug that could generate empty proto spans (#3808)

v0.31.0 Beta

🛑 Breaking changes 🛑

• Remove Resize() from pdata slice APIs (#3675)
• Remove the ballast allocation when mem-ballast-size-mib is set in command line (#3626)
  • Use ballast extension to set memory ballast instead.
• Rename DoubleDataPoint to NumberDataPoint (#3633)
• Remove IntHistogram (#3676)

💡 Enhancements 💡

• Update to OTLP 0.8.0:
  • Translate IntHistogram to Histogram in otlp_wrappers (#3676)
  • Translate IntGauge to Gauge in otlp_wrappers (#3619)
  • Translate IntSum to Sum in otlp_wrappers (#3621)
  • Update NumberDataPoint to support DoubleVal and IntVal (#3689)
  • Update Exemplar to use oneOfPrimitiveValue (#3699)
  • Remove IntExemplar and IntExemplarSlice from pdata (#3705)
  • Mark IntGauge/IntSum/IntDataPoint as deprecated (#3707)
  • Remove IntGauge/IntSum from batchprocessor (#3718)
  • prometheusremotewrite exporter: Convert to new Number metrics (#3714)
  • prometheus receiver: Convert to new Number metrics (#3716)
  • prometheus exporter: Convert to new Number metrics (#3709)
  • hostmetrics receiver: Convert to new Number metrics (#3710)
  • opencensus: Convert to new Number metrics (#3708)
  • scraperhelper receiver: Convert to new Number metrics (#3717)
  • testbed: Convert to new Number metrics (#3719)
  • exporterhelper: Convert resourcetolabel to new Number metrics (#3723)
• configauth: Prepare auth API to return a context (#3618)
• pdata:
  • Implement Equal() for map-valued AttributeValues (#3612)
  • Add [Type]Slice.Sort(func) to sort slices (#3671)
• memorylimiter:
  • Add validation on ballast size between memorylimiter and ballastextension (#3532)
  • Access Ballast extension via Host.GetExtensions (#3634)
• prometheusremotewrite exporter: Add a WAL implementation without wiring up (#3597)
• prometheus receiver: Add metricGroup.toDistributionPoint pdata conversion (#3667)
• Use ComponentID as identifier instead of config (#3696)
• zpages: Move config validation from factory to Validate (#3697)
• Enable tracez z-pages from otel-go, disable opencensus (#3698)
• Convert temporality and monotonicity for deprecated sums (#3729)

🧰 Bug fixes 🧰

• otlpexporter: Allow endpoint to be configured with a scheme of http or https (#3575)
• Handle errors when reloading the collector service (#3615)
• Do not report fatal error when cmux.ErrServerClosed (#3703)
• Fix bool attribute equality in pdata (#3688)

v0.30.0 Beta

🛑 Breaking changes 🛑

• Rename pdata.DoubleSum to pdata.Sum (#3583)
• Rename pdata.DoubleGauge to pdata.Gauge (#3599)
• Migrated pdata to a dedicated package (#3483)
• Change Marshaler/Unmarshaler to be consistent with other interfaces (#3502)
• Remove consumer/simple package (#3438)
• Remove unnecessary interfaces from pdata (#3506)
• zipkinv1 implement directly Unmarshaler interface (#3504)
• zipkinv2 implement directly Marshaler/Unmarshaler interface (#3505)
• Change exporterhelper to accept ExporterCreateSettings instead of just logger (#3569)
• Use Func pattern in processorhelper, consistent with others (#3570)

🚩 Deprecations 🚩

• Deprecate Resize() from pdata slice APIs (#3573)

💡 Enhancements 💡

• Update OTLP to v0.8.0 (#3572)
• Migrate from OpenCensus to OpenTelemetry for internal tracing (#3567)
• Move internal/pdatagrpc to model/otlpgrpc (#3507)
• Move internal/otlp to model/otlp (#3508)
• Create http Server via Config, enable cors and decompression (#3513)
• Allow users to set min and max TLS versions (#3591)
• Support setting ballast size in percentage of total Mem in ballast extension (#3456)
• Publish go.opentelemetry.io/collector/model as a separate module (#3530)
• Pass a TracerProvider via construct settings to all the components (#3592)
• Make graceful shutdown optional (#3577)

🧰 Bug fixes 🧰

• scraperhelper: Include the scraper name in log messages (#3487)
• scraperhelper: fix case when returned pdata is empty (#3520)
• Record the correct number of points not metrics in Kafka receiver (#3553)
• Validate the Prometheus configuration (#3589)

v0.29.0 Beta

🛑 Breaking changes 🛑

• Rename service.Application to service.Collector (#3268)
• Provide case sensitivity in config yaml mappings by using Koanf instead of Viper (#3337)
• Move zipkin constants to an internal package (#3431)
• Disallow renaming metrics using metric relabel configs (#3410)
• Move cgroup and iruntime utils from memory_limiter to internal folder (#3448)
• Move model pdata interfaces to pdata, expose them publicly (#3455)

💡 Enhancements 💡

• Change obsreport helpers for scraper to use the same pattern as Processor/Exporter (#3327)
• Convert otlptext to implement Marshaler interfaces (#3366)
• Add encoder/decoder and marshaler/unmarshaler for OTLP protobuf (#3401)
• Use the new marshaler/unmarshaler in kafka exporter (#3403)
• Convert zipkinv2 to to/from translator interfaces (#3409)
• zipkinv1: Move to translator and encoders interfaces (#3419)
• Use the new marshaler/unmarshaler in kafka receiver #3402
• Change oltp receiver to use the new unmarshaler, avoid grpc-gateway dependency (#3406)
• Use the new Marshaler in the otlphttp exporter (#3433)
• Add grpc response struct for all signals instead of returning interface in otlp receiver/exporter (#3437)
• zipkinv2: Add encoders, decoders, marshalers (#3426)
• scrapererror receiver: Return concrete error type (#3360)
• kafka receiver: Add metrics support (#3452)
• prometheus receiver:
  • Add store to track stale metrics (#3414)
  • Add up and scrape_xxxx internal metrics (#3116)

🧰 Bug fixes 🧰

• prometheus receiver:
  • Reject datapoints with duplicate label keys (#3408)
  • Scrapers are not stopped when receiver is shutdown (#3450)
• prometheusremotewrite exporter: Adjust default retry settings (#3416)
• hostmetrics receiver: Fix missing startTimestamp for processes scraper (#3461)

v0.28.0 Beta

🛑 Breaking changes 🛑

• Remove unused logstest package (#3222)
• Introduce AppSettings instead of Parameters (#3163)
• Remove unused testutil.TempSocketName (#3291)
• Move BigEndian helper functions in tracetranslator to an internal package.(#3298)
• Rename configtest.LoadConfigFile to configtest.LoadConfigAndValidate (#3306)
• Replace ExtensionCreateParams with ExtensionCreateSettings (#3294)
• Replace ProcessorCreateParams with ProcessorCreateSettings. (#3181)
• Replace ExporterCreateParams with ExporterCreateSettings (#3164)
• Replace ReceiverCreateParams with ReceiverCreateSettings. (#3167)
• Change batchprocessor logic to limit data points rather than metrics (#3141)
• Rename PrwExporter to PRWExporter and NewPrwExporter to NewPRWExporter (#3246)
• Avoid exposing OpenCensus reference in public APIs (#3253)
• Move config.Parser to configparser.Parser (#3304)
• Remove deprecated funcs inside the obsreceiver (#3314)
• Remove obsreport.GRPCServerWithObservabilityEnabled, enable observability in config (#3315)
• Remove obsreport.ProcessorMetricViews, use BuildProcessorCustomMetricName where needed (#3316)
• Remove "Receive" from obsreport.Receiver funcs (#3326)
• Remove "Export" from obsreport.Exporter funcs (#3333)
• Hide unnecessary public struct obsreport.StartReceiveOptions (#3353)
• Avoid exposing internal implementation public in OC/OTEL receivers (#3355)
• Updated configgrpc ToDialOptions and confighttp ToClient apis to take extensions configuration map (#3340)
• Remove GenerateSequentialTraceID and GenerateSequentialSpanIDin functions in testbed (#3390)
• Change "grpc" to "GRPC" in configauth function/type names (#3285)

💡 Enhancements 💡

• Add doc.go files to the consumer package and its subpackages (#3270)
• Improve documentation of consumer package and subpackages (#3269, #3361)
• Automate triggering of doc-update on release (#3234)
• Enable Dependabot for Github Actions (#3312)
• Remove the proto dependency in goldendataset for traces (#3322)
• Add telemetry for dropped data due to exporter sending queue overflow (#3328)
• Add initial implementation of pdatagrpc (#3231)
• Change receiver obsreport helpers pattern to match the Processor/Exporter (#3227)
• Add model translation and encoding interfaces (#3200)
• Add otlpjson as a serializer implementation (#3238)
• prometheus receiver:
  • Add createNodeAndResourcePdata for Prometheus->OTLP pdata (#3139)
  • Direct metricfamily Prometheus->OTLP (#3145)
• Add componenttest.NewNop*CreateSettings to simplify tests (#3375)
• Add support for markdown generation (#3100)
• Refactor components for the Client Authentication Extensions (#3287)

🧰 Bug fixes 🧰

• Use dedicated zapcore.Core for Windows service (#3147)
• Hook up start and shutdown functions in fileexporter (#3260)
• Fix oc to pdata translation for sum non-monotonic cumulative (#3272)
• Fix timeseriesSignature in prometheus receiver (#3310)

v0.27.0 Beta

🛑 Breaking changes 🛑

• Change Marshal signatures in kafkaexporter's Marshalers to directly convert pdata to sarama.ProducerMessage (#3162)
• Remove tracetranslator.DetermineValueType, only used internally by Zipkin (#3114)
• Remove OpenCensus conventions, should not be used (#3113)
• Remove Zipkin specific translation constants, move to internal (#3112)
• Remove tracetranslator.TagHTTPStatusCode, use conventions.AttributeHTTPStatusCode (#3111)
• Remove OpenCensus status constants and transformation (#3110)
• Remove tracetranslator.AttributeArrayToSlice, not used in core or contrib (#3109)
• Remove internaldata.MetricsData, same APIs as for traces (#3156)
• Rename config.IDFromString to NewIDFromString, remove MustIDFromString (#3177)
• Move consumerfanout package to internal (#3207)
• Canonicalize enum names in pdata. Fix usage of uppercase names (#3208)

💡 Enhancements 💡

• Use config.ComponentID for obsreport receiver/scraper (#3098)
• Add initial implementation of the consumerhelper (#3146)
• Add Collector version to Prometheus Remote Write Exporter user-agent header (#3094)
• Refactor processorhelper to use consumerhelper, split by signal type (#3180)
• Use consumerhelper for exporterhelper, add WithCapabilities (#3186)
• Set capabilities for all core exporters, remove unnecessary funcs (#3190)
• Add an internal sharedcomponent to be shared by receivers with shared resources (#3198)
• Allow users to configure the Prometheus remote write queue (#3046)
• Mark internaldata traces translation as deprecated for external usage (#3176)

🧰 Bug fixes 🧰

• Fix Prometheus receiver metric start time and reset determination logic. (#3047)
  • The receiver will no longer drop the first sample for counter, summary, and histogram metrics.
• The Prometheus remote write exporter will no longer force counter metrics to have a _total suffix. (#2993)
• Remove locking from jaeger receiver start and stop processes (#3070)
• Fix batch processor metrics reorder, improve performance (#3034)
• Fix batch processor traces reorder, improve performance (#3107)
• Fix batch processor logs reorder, improve performance (#3125)
• Avoid one unnecessary allocation in grpc OTLP exporter (#3122)
• batch processor: Validate that batch config max size is greater than send size (#3126)
• Add capabilities to consumer, remove from processor (#2770)
• Remove internal protos usage in Prometheusremotewrite exporter (#3184)
• prometheus receiver: Honor Prometheus external labels (#3127)
• Validate that remote write queue settings are not negative (#3213)

v0.26.0 Beta

🛑 Breaking changes 🛑

• Change With*Unmarshallers signatures in Kafka exporter/receiver (#2973)
• Rename marshall to marshal in all the occurrences (#2977)
• Remove componenterror.ErrAlreadyStarted and componenterror.ErrAlreadyStopped, components should not protect against this, Service will start/stop once.
• Rename ApplicationStartInfo to BuildInfo
• Rename ApplicationStartInfo.ExeName to BuildInfo.Command
• Rename ApplicationStartInfo.LongName to BuildInfo.Description

🚩 Deprecations 🚩

• Add AppendEmpty and deprecate Append for slices (#2970)

💡 Enhancements 💡

• kafka exporter: Add logs support (#2943)
• Update mdatagen to create factories of init instead of new (#2978)
• zipkin receiver: Reduce the judgment of zipkin v1 version (#2990)
• Custom authenticator logic to accept a component.Host which will extract the authenticator to use based on a new authenticator name property (#2767)
• prometheusremotewrite exporter: Add resource_to_telemetry_conversion config option (#3031)
• logging exporter: Extract OTLP text logging (#3082)
• Format timestamps as strings instead of int in otlptext output (#3088)
• Add darwin arm64 build (#3090)

🧰 Bug fixes 🧰

• Fix Jaeger receiver to honor TLS Settings (#2866)
• zipkin translator: Handle missing starttime case for zipkin json v2 format spans (#2506)
• prometheus exporter: Fix OTEL resource label drops (#2899)
• prometheusremotewrite exporter:
  • Enable the queue internally (#2974)
  • Don't drop instance and job labels (#2979)
• jaeger receiver: Wait for server goroutines exit on shutdown (#2985)
• logging exporter: Ignore invalid handle on close (#2994)
• Fix service zpages (#2996)
• batch processor: Fix to avoid reordering and send max size (#3029)

v0.25.0 Beta

🛑 Breaking changes 🛑

• Rename ForEach (in pdata) with Range to be consistent with sync.Map (#2931)
• Rename componenthelper.Start to componenthelper.StartFunc (#2880)
• Rename componenthelper.Stop to componenthelper.StopFunc (#2880)
• Remove exporterhelper.WithCustomUnmarshaler, processorhelper.WithCustomUnmarshaler, receiverhelper.WithCustomUnmarshaler, extensionhelper.WithCustomUnmarshaler, implement config.CustomUnmarshaler interface instead (#2867)
• Remove component.CustomUnmarshaler implement config.CustomUnmarshaler interface instead (#2867)
• Remove testutil.HostPortFromAddr, users can write their own parsing helper (#2919)
• Remove configparser.DecodeTypeAndName, use config.IDFromString (#2869)
• Remove config.NewViper, users should use config.NewParser (#2917)
• Remove testutil.WaitFor, use testify.Eventually helper if needed (#2920)
• Remove testutil.WaitForPort, users can use testify.Eventually (#2926)
• Rename processorhelper.NewTraceProcessor to processorhelper.NewTracesProcessor (#2935)
• Rename exporterhelper.NewTraceExporter to exporterhelper.NewTracesExporter (#2937)
• Remove InitEmptyWithCapacity, add EnsureCapacity and Clear (#2845)
• Rename traces methods/objects to include Traces in Kafka receiver (#2966)

💡 Enhancements 💡

• Add validatable interface with Validate() to all config.<component> (#2898)
  • add the empty Validate() implementation for all component configs
• Experimental: Add a config source manager that wraps the interaction with config sources (#2857, #2903, #2948)
• kafka exporter: Key jaeger messages on traceid (#2855)
• scraperhelper: Don't try to count metrics if scraper returns an error (#2902)
• Extract ConfigFactory in a ParserProvider interface (#2868)
• prometheus exporter: Allows Summary metrics to be exported to Prometheus (#2900)
• prometheus receiver: Optimize dpgSignature function (#2945)
• kafka receiver: Add logs support (#2944)

🧰 Bug fixes 🧰

• prometheus receiver:
  • Treat Summary and Histogram metrics without "_sum" counter as valid metric (#2812)
  • Add job and instance as well-known labels (#2897)
• prometheusremotewrite exporter:
  • Sort Sample by Timestamp to avoid out of order errors (#2941)
  • Remove incompatible queued retry (#2951)
• kafka receiver: Fix data race with batchprocessor (#2957)
• jaeger receiver: Jaeger agent should not report ErrServerClosed (#2965)

v0.24.0 Beta

🛑 Breaking changes 🛑

• Remove legacy internal metrics for memorylimiter processor, spans_dropped and trace_batches_dropped (#2841)
  • For spans_dropped use processor/refused_spans with processor=memorylimiter
• Rename pdata..[Start|End]Time to pdata..[Start|End]Timestamp (#2847)
• Rename pdata.DoubleExemplar to pdata.Exemplar (#2804)
• Rename pdata.DoubleHistogram to pdata.Histogram (#2797)
• Rename pdata.DoubleSummary to pdata.Summary (#2774)
• Refactor consumererror package (#2768)
  • Remove PartialError type in favor of signal-specific types
  • Rename CombineErrors() to Combine()
• Refactor componenthelper package (#2778)
  • Remove ComponentSettings and DefaultComponentSettings()
  • Rename NewComponent() to New()
• obsReport.NewExporter accepts a settings struct (#2668)
• Remove ErrorWaitingHost from componenttest (#2582)
• Move config.Load to configparser.Load (#2796)
• Remove configtest.NewViperFromYamlFile(), use config.Parser.NewParserFromFile() (#2806)
• Remove config.ViperSubExact(), use config.Parser.Sub() (#2806)
• Update LoadReceiver signature to remove unused params (#2823)
• Move configerror.ErrDataTypeIsNotSupported to componenterror.ErrDataTypeIsNotSupported (#2886)
• RenameCreateTraceExporter type to CreateTracesExporter in exporterhelper (#2779)
• Move fluentbit extension to contrib (#2795)
• Move configmodels to config (#2808)
• Move fluentforward receiver to contrib (#2723)