CHANGELOG.md

Changelog

Unreleased

🛑 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)

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 lables 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 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 semcomv 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][Reques|Response] in favor of UnmarshalJSON.
  • Deprecate [Traces|Metrics|Logs][Reques|Response].Marshal in favor of MarshalProto.
  • Deprecate UnmarshalJSON[Traces|Metrics|Logs][Reques|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 mininum 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 otlpgrp.[]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 open-telemetry#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)
  • expoerterhelper: 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 pdatagrcp (#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 exporterheleper.WithCustomUnmarshaler, processorheleper.WithCustomUnmarshaler, receiverheleper.WithCustomUnmarshaler, extensionheleper.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)

🚩 Deprecations 🚩

• Deprecate consumetest.New[${SIGNAL}]Nop in favor of consumetest.NewNop (#2878)
• Deprecate consumetest.New[${SIGNAL}]Err in favor of consumetest.NewErr (#2878)

💡 Enhancements 💡

• batch processor: - Support max batch size for logs (#2736)
• Use Endpoint for health check extension (#2782)
• Use confignet.TCPAddr for pprof and zpages extensions (#2829)
• Add watcher to values retrieved via config sources (#2803)
• Updates for cloud semantic conventions (#2809)
  • cloud.infrastructure_service -> cloud.platform
  • cloud.zone -> cloud.availability_zone
• Add systemd environment file for deb/rpm packages (#2822)
• Add validate interface in configmodels to force each component do configuration validation (#2802, #2856)
• Add aws.ecs.task.revision to semantic conventions list (#2816)
• Set unprivileged user to container image (#2838)
• Add New funcs for extension, exporter, processor config settings (#2872)
• Report metric about current size of the exporter retry queue (#2858)
• Allow adding new signals in ProcessorFactory by forcing everyone to embed BaseProcessorFactory (#2885)

🧰 Bug fixes 🧰

• pdata.TracesFromOtlpProtoBytes: Fixes to handle backwards compatibility changes in proto (#2798)
• jaeger receiver: Escape user input used in output (#2815)
• prometheus exporter: Ensure same time is used for updated time (#2745)
• prometheusremotewrite exporter: Close HTTP response body (#2875)

v0.23.0 Beta

🛑 Breaking changes 🛑

• Move fanout consumers to fanoutconsumer package (#2615)
• Rename ExporterObsReport to Exporter (#2658)
• Rename ProcessorObsReport to Processor (#2657)
• Remove ValidateConfig and add Validate on the Config struct (#2665)
• Rename pdata Size to OtlpProtoSize (#2726)
• Rename [Traces|Metrics|Logs]Consumer to [Traces|Metrics|Logs] (#2761)
• Remove public access for componenttest.Example* components:
  • Users of these structs for testing configs should use the newly added componenttest.Nop* (update all components name in the config example* -> nop and use componenttest.NopComponents()).
  • Users of these structs for sink like behavior should use consumertest.*Sink.

💡 Enhancements 💡

• hostmetrics receiver: List labels along with respective metrics in metadata (#2662)
• exporter helper: Remove obsreport.ExporterContext, always add exporter name as a tag to the metrics (#2682)
• jaeger exporter: Change to not use internal data (#2698)
• kafka receiver: Change to not use internal data (#2697)
• zipkin receiver: Change to not use internal data (#2699)
• kafka exporter: Change to not use internal data (#2696)
• Ensure that extensions can be created and started multiple times (#2679)
• Use otlp request in logs wrapper, hide members in the wrapper (#2692)
• Add MetricsWrapper to dissallow access to internal representation (#2693)
• Add TracesWrapper to dissallow access to internal representation (#2721)
• Allow multiple OTLP receivers to be created (#2743)

🧰 Bug fixes 🧰

• prometheus exporter: Fix to work with standard labels that follow the naming convention of using periods instead of underscores (#2707)
• Propagate name and transport for prometheus receiver and exporter (#2680)
• zipkin receiver: Ensure shutdown correctness (#2765)

v0.22.0 Beta

🛑 Breaking changes 🛑

• Rename ServiceExtension to just Extension (#2581)
• Remove consumerdata.TraceData (#2551)
• Move consumerdata.MetricsData to internaldata.MetricsData (#2512)
• Remove custom OpenCensus sematic conventions that have equivalent in otel (#2552)
• Move ScrapeErrors and PartialScrapeError to scrapererror (#2580)
• Remove support for deprecated unmarshaler CustomUnmarshaler, only Unmarshal is supported (#2591)
• Remove deprecated componenterror.CombineErrors (#2598)
• Rename pdata.TimestampUnixNanos to pdata.Timestamp (#2549)

💡 Enhancements 💡

• prometheus exporter: Re-implement on top of github.com/prometheus/client_golang/prometheus and add metric_expiration option
• logging exporter: Add support for AttributeMap (#2609)
• Add semantic conventions for instrumentation library (#2602)

🧰 Bug fixes 🧰

• otlp receiver: Fix Shutdown() bug (#2564)
• batch processor: Fix Shutdown behavior (#2537)
• logging exporter: Fix handling the loop for empty attributes (#2610)
• prometheusremotewrite exporter: Fix counter name check (#2613)

v0.21.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated function IsValid from trace/span ID (#2522)
• Remove accessors for deprecated status code (#2521)

💡 Enhancements 💡

• otlphttp exporter: Add compression option for gzip encoding of outgoing http requests (#2502)
• Add ScrapeErrors struct to consumererror to simplify errors usage (#2414)
• Add cors_allowed_headers option to confighttp (#2454)
• Add SASL/SCRAM authentication mechanism on kafka receiver and exporter (#2503)

🧰 Bug fixes 🧰

• otlp receiver: Sets the correct deprecated status code before sending data to the pipeline (#2521)
• Fix IsPermanent to account for wrapped errors (#2455)
• otlp exporter: Preserve original error messages (#2459)

v0.20.0 Beta

🛑 Breaking changes 🛑

• Rename samplingprocessor/probabilisticsamplerprocessor to probabilisticsamplerprocessor (#2392)

💡 Enhancements 💡

• hostmetrics receiver: Refactor to use metrics metadata utilities (#2405, #2406, #2421)
• Add k8s.node semantic conventions (#2425)

v0.19.0 Beta

🛑 Breaking changes 🛑

• Remove deprecated queued_retry processor
• Remove deprecated configs from resource processor: type (set "opencensus.type" key in "attributes.upsert" map instead) and labels (use "attributes.upsert" instead).

💡 Enhancements 💡

• hostmetrics receiver: Refactor load metrics to use generated metrics (#2375)
• Add uptime to the servicez debug page (#2385)
• Add new semantic conventions for AWS (#2365)

🧰 Bug fixes 🧰

• jaeger exporter: Improve connection state logging (#2239)
• pdatagen: Fix slice of values generated code (#2403)
• filterset processor: Avoid returning always nil error in strict filterset (#2399)

v0.18.0 Beta

🛑 Breaking changes 🛑

• Rename host metrics according to metrics spec and rename swap scraper to paging (#2311)

💡 Enhancements 💡

• Add check for NO_WINDOWS_SERVICE environment variable to force interactive mode on Windows (#2272)
• hostmetrics receiver: Add disk/weighted_io_time metric (Linux only) (#2312)
• opencensus exporter: Add queue-retry (#2307)
• filter processor: Filter metrics using resource attributes (#2251)

🧰 Bug fixes 🧰

• fluentforward receiver: Fix string conversions (#2314)
• Fix zipkinv2 translation error tag handling (#2253)

v0.17.0 Beta

💡 Enhancements 💡

• Default config environment variable expansion (#2231)
• prometheusremotewrite exporter: Add batched exports (#2249)
• memorylimiter processor: Introduce soft and hard limits (#2250)

🧰 Bug fixes 🧰

• Fix nits in pdata usage (#2235)
• Convert status to not be a pointer in the Span (#2242)
• Report the error from pprof.StartCPUProfile (#2263)
• Rename service.Application.SignalTestComplete to Shutdown (#2277)

v0.16.0 Beta

🛑 Breaking changes 🛑

• Rename Push functions to be consistent across signals in exporterhelper (#2203)

💡 Enhancements 💡

• Change default OTLP/gRPC port number to 4317, also continue receiving on legacy port 55680 during transition period (#2104).
• kafka exporter: Add support for exporting metrics as otlp Protobuf. (#1966)
• Move scraper helpers to its own scraperhelper package (#2185)
• Add componenthelper package to help build components (#2186)
• Remove usage of custom init/stop in scraper and use start/shutdown from component (#2193)
• Add more trace annotations, so zpages are more useful to determine failures (#2206)
• Add support to skip TLS verification (#2202)
• Expose non-nullable metric types (#2208)
• Expose non-nullable elements from slices of pointers (#2200)

🧰 Bug fixes 🧰

• Change InstrumentationLibrary to be non-nullable (#2196)
• Add support for slices to non-pointers, use non-nullable AnyValue (#2192)
• Fix --set flag to work with {} in configs (#2162)

v0.15.0 Beta

🛑 Breaking changes 🛑

• Remove legacy metrics, they were marked as legacy for ~12 months #2105

💡 Enhancements 💡

• Implement conversion between OpenCensus and OpenTelemetry Summary Metric (#2048)
• Add ability to generate non nullable messages (#2005)
• Implement Summary Metric in Prometheus RemoteWrite Exporter (#2083)
• Add resource_to_telemetry_conversion to exporter helper expose exporter settings (#2060)
• Add CustomRoundTripper function to httpclientconfig (#2085)
• Allow for more logging options to be passed to service (#2132)
• Add config parameters for jaeger receiver (#2068)
• Map unset status code for jaegar translator as per spec (#2134)
• Add more trace annotations to the queue-retry logic (#2136)
• Add config settings for component telemetry (#2148)
• Use net.SplitHostPort for IPv6 support in prometheus receiver (#2154)
• Add --log-format command line option (default to "console") #2177.

🧰 Bug fixes 🧰

• logging exporter: Add Logging for Summary Datapoint (#2084)
• hostmetrics receiver: use correct TCP state labels on Unix systems (#2087)
• Fix otlp_log receiver wrong use of trace measurement (#2117)
• Fix "process/memory/rss" metric units (#2112)
• Fix "process/cpu_seconds" metrics (#2113)
• Add check for nil logger in exporterhelper functions (#2141)
• prometheus receiver:
  • Upgrade Prometheus version to fix race condition (#2121)
  • Fix the scraper/discover manager coordination (#2089)
  • Fix panic when adjusting buckets (#2168)

v0.14.0 Beta

🚀 New components 🚀

• otlphttp exporter which implements OTLP over HTTP protocol.

🛑 Breaking changes 🛑

• Rename consumer.TraceConsumer to consumer.TracesConsumer #1974
• Rename component.TraceReceiver to component.TracesReceiver #1975
• Rename component.TraceProcessor to component.TracesProcessor #1976
• Rename component.TraceExporter to component.TracesExporter #1975
• Move tailsampling processor to contrib (#2012)
• Remove NewAttributeValueSlice (#2028) and mark NewAttributeValue as deprecated (#2022)
• Remove pdata.StringValue (#2021)
• Remove pdata.InitFromAttributeMap, use CopyTo if needed (#2042)
• Remove SetMapVal and SetArrayVal for pdata.AttributeValue (#2039)

🚩 Deprecations 🚩

• Deprecate NopExporter, add NopConsumer (#1972)
• Deprecate SinkExporter, add SinkConsumer (#1973)

💡 Enhancements 💡

• zipkin exporter: Add queue retry to zipkin (#1971)
• prometheus exporter: Add send_timestamps option (#1951)
• filter processor: Add expr pdata.Metric filtering support (#1940, #1996)
• attribute processor: Add log support (#1934)
• logging exporter: Add index for histogram buckets count (#2009)
• otlphttp exporter: Add correct handling of server error responses (#2016)
• prometheusremotewrite exporter:
  • Add user agent header to outgoing http request (#2000)
  • Convert histograms to cumulative (#2049)
  • Return permanent errors (#2053)
  • Add external labels (#2044)
• hostmetrics receiver: Use scraper controller (#1949)
• Change Span/Trace ID to be byte array (#2001)
• Add simple metrics helper to facilitate building pdata.Metrics in receivers (#1540)
• Improve diagnostic logging for exporters (#2020)
• Add obsreport to receiverhelper scrapers (#1961)
• Update OTLP to 0.6.0 and use the new Span Status code (#2031)
• Add support of partial requests for logs and metrics to the exporterhelper (#2059)

🧰 Bug fixes 🧰

• logging exporter: Added array serialization (#1994)
• zipkin receiver: Allow receiver to parse string tags (#1893)
• batch processor: Fix shutdown race (#1967)
• Guard for nil data points (#2055)

v0.13.0 Beta

🛑 Breaking changes 🛑

• Host metric system.disk.time renamed to system.disk.operation_time (#1887)
• Use consumer for sender interface, remove unnecessary receiver address from Runner (#1941)
• Enable sending queue by default in all exporters configured to use it (#1924)
• Removed groupbytraceprocessor (#1891)
• Remove ability to configure collection interval per scraper (#1947)

💡 Enhancements 💡

• Host Metrics receiver now reports both system.disk.io_time and system.disk.operation_time (#1887)
• Match spans against the instrumentation library and resource attributes (#928)
• Add receiverhelper for creating flexible "scraper" metrics receiver (#1886, #1890, #1945, #1946)
• Migrate tailsampling processor to new OTLP-based internal data model and add Composite Sampler (#1894)
• Metadata Generator: Change Metrics fields to implement an interface with new methods (#1912)
• Add unmarshalling for pdata.Traces (#1948)
• Add debug-level message on error for jaeger exporter (#1964)

🧰 Bug fixes 🧰

• Fix bug where the service does not correctly start/stop the log exporters (#1943)
• Fix Queued Retry Unusable without Batch Processor (#1813) - (#1930)
• prometheus receiver: Log error message when process_start_time_seconds gauge is missing (#1921)
• Fix trace jaeger conversion to internal traces zero time bug (#1957)
• Fix panic in otlp traces to zipkin (#1963)
• Fix OTLP/HTTP receiver's path to be /v1/traces (#1979)

v0.12.0 Beta

🚀 New components 🚀

• configauth package with the auth settings that can be used by receivers (#1807, #1808, #1809, #1810)
• perfcounters package that uses perflib for host metrics receiver (#1835, #1836, #1868, #1869, #1870)

💡 Enhancements 💡

• Remove queued_retry and enable otlp metrics receiver in default config (#1823, #1838)
• Add limit_percentage and spike_limit_percentage options to memorylimiter processor (#1622)
• hostmetrics receiver:
  • Collect additional labels from partitions in the filesystems scraper (#1858)
  • Add filters for mount point and filesystem type (#1866)
• Add cloud.provider semantic conventions (#1865)
• attribute processor: Add log support (#1783)
• Introduce SpanID data type, not yet used in Protobuf messages ($1854, #1855)
• Enable otlp trace by default in the released docker image (#1883)
• tailsampling processor: Combine batches of spans into a single batch (#1864)
• filter processor: Update to use pdata (#1885)
• Allow MSI upgrades (#1914)

🚩 Deprecations 🚩

• Deprecate OpenCensus-based internal data structures (#1843)

🧰 Bug fixes 🧰

• prometheus receiver: Print a more informative message about 'up' metric value (#1826)
• Use custom data type and custom JSON serialization for traceid (#1840)
• Skip creation of redundant nil resource in translation from OC if there are no combined metrics (#1803)
• tailsampling processor: Only send to next consumer once (#1735)
• Report Windows pagefile usage in bytes (#1837)
• Fix issue where Prometheus SD config cannot be parsed (#1877)

v0.11.0 Beta

🛑 Breaking changes 🛑

• Rename service.Start() to Run() since it's a blocking call
• Fix slice Append to accept by value the element in pdata
• Change CreateTraceProcessor and CreateMetricsProcessor to use the same parameter order as receivers/logs processor and exporters.
• Prevent accidental use of LogsToOtlp and LogsFromOtlp and the OTLP data structs (#1703)
• Remove SetType from configmodels, ensure all registered factories set the type in config (#1798)
• Move process telemetry to service/internal (#1794)

💡 Enhancements 💡

• Add map and array attribute value type support (#1656)
• Add authentication support to kafka (#1632)
• Implement InstrumentationLibrary translation to jaeger (#1645)
• Add public functions to export pdata to ExportXServicesRequest Protobuf bytes (#1741)
• Expose telemetry level in the configtelemetry (#1796)
• Add configauth package (#1807)
• Add config to docker image (#1792)

🧰 Bug fixes 🧰

• Use zap int argument for int values instead of conversion (#1779)
• Add support for gzip encoded payload in OTLP/HTTP receiver (#1581)
• Return proto status for OTLP receiver when failed (#1788)

v0.10.0 Beta

🛑 Breaking changes 🛑

• Update OTLP to v0.5.0, incompatible metrics protocol.
• Remove support for propagating summary metrics in OtelCollector.
  • This is a temporary change, and will affect mostly OpenCensus users who use metrics.

💡 Enhancements 💡

• Support zipkin proto in kafka receiver (#1646)
• Prometheus Remote Write Exporter supporting Cortex (#1577, #1643)
• Add deployment environment semantic convention (#1722)
• Add logs support to batch and resource processors (#1723, #1729)

🧰 Bug fixes 🧰

• Identify config error when expected map is other value type (#1641)
• Fix Kafka receiver closing ready channel multiple times (#1696)
• Fix a panic issue while processing Zipkin spans with an empty service name (#1742)
• Zipkin Receiver: Always set the endtime (#1750)

v0.9.0 Beta

🛑 Breaking changes 🛑

• Remove old base factories:
  • ReceiverFactoryBase (#1583)
  • ProcessorFactoryBase (#1596)
  • ExporterFactoryBase (#1630)
• Remove logs factories and merge with normal factories (#1569)
• Remove reconnection_delay from OpenCensus exporter (#1516)
• Remove ConsumerOld interfaces (#1631)

🚀 New components 🚀

• prometheusremotewrite exporter: Send metrics data in Prometheus TimeSeries format to Cortex or any Prometheus (#1544)
• kafka receiver: Receive traces from Kafka (#1410)

💡 Enhancements 💡

• kafka exporter: Enable queueing, retry, timeout (#1455)
• Add Headers field in HTTPClientSettings (#1552)
• Change OpenCensus receiver (#1556) and exporter (#1571) to the new interfaces
• Add semantic attribute for telemetry.auto.version (#1578)
• Add uptime and RSS memory self-observability metrics (#1549)
• Support conversion for OpenCensus SameProcessAsParentSpan (#1629)
• Access application version in components (#1559)
• Make Kafka payload encoding configurable (#1584)

🧰 Bug fixes 🧰

• Stop further processing if filterprocessor filters all data (#1500)
• processscraper: Use same scrape time for all data points coming from same process (#1539)
• Ensure that time conversion for 0 returns nil timestamps or Time where IsZero returns true (#1550)
• Fix multiple exporters panic (#1563)
• Allow attribute processor for external use (#1574)
• Do not duplicate filesystem metrics for devices with many mount points (#1617)

v0.8.0 Beta

🚀 New components 🚀

• groupbytrace processor that waits for a trace to be completed (#1362)

💡 Enhancements 💡

• Migrate zipkin receiver/exporter to the new interfaces (#1484)
• Migrate prometheus receiver/exporter to the new interfaces (#1477, #1515)
• Add new FactoryUnmarshaler support to all components, deprecate old way (#1468)
• Update fileexporter to write data in OTLP (#1488)
• Add extension factory helper (#1485)
• Host scrapers: Use same scrape time for all data points coming from same source (#1473)
• Make logs SeverityNumber publicly available (#1496)
• Add recently included conventions for k8s and container resources (#1519)
• Add new config StartTimeMetricRegex to prometheus receiver (#1511)
• Convert Zipkin receiver and exporter to use OTLP (#1446)

🧰 Bug fixes 🧰

• Infer OpenCensus resource type based on OpenTelemetry's semantic conventions (#1462)
• Fix log adapter in prometheus receiver (#1493)
• Avoid frequent errors for process telemetry on Windows (#1487)

v0.7.0 Beta

🚀 New components 🚀

• Receivers
  • fluentfoward runs a TCP server that accepts events via the Fluent Forward protocol (#1173)
• Exporters
  • kafka exports traces to Kafka (#1439)
• Extensions
  • Experimental fluentbit facilitates running a FluentBit subprocess of the collector (#1381)

💡 Enhancements 💡

• Updated golang/protobuf from v1.3.5 to v1.4.2 (#1308)
• Updated opencensus-proto from v0.2.1 to v0.3.0 (#1308)
• Added round_robin balancer_name as an option to gRPC client settings (#1353)
• hostmetrics receiver
  • Switch to using perf counters to get disk io metrics on Windows (#1340)
  • Add device filter for file system (#1379) and disk (#1378) scrapers
  • Record process physical & virtual memory stats separately (#1403)
  • Scrape system.disk.time on Windows (#1408)
  • Add disk.pending_operations metric (#1428)
  • Add network interface label to network metrics (#1377)
• Add exporterhelper (#1351) and processorhelper (#1359) factories
• Update OTLP to latest version (#1384)
• Disable timeout, retry on failure and sending queue for logging exporter (#1400)
• Add support for retry and sending queue for jaeger exporter (#1401)
• Add batch size bytes metric to batch processor (#1270)
• otlp receiver: Add Log Support (#1444)
• Allow to configure read/write buffer sizes for http Client (#1447)
• Update DB conventions to latest and add exception conventions (#1452)

🧰 Bug fixes 🧰

• Fix resource processor for old metrics (#1412)
• jaeger receiver: Do not try to stop if failed to start. Collector service will do that (#1434)

v0.6.0 Beta

🛑 Breaking changes 🛑

• Renamed the metrics generated by hostmetrics receiver to match the (currently still pending) OpenTelemetry system metric conventions (#1261) (#1269)
• Removed vmmetrics receiver (#1282)
• Removed cpu scraper report_per_cpu config option (#1326)

💡 Enhancements 💡

• Added disk merged (#1267) and process count (#1268) metrics to hostmetrics
• Log metric data points in logging exporter (#1258)
• Changed the batch processor to not ignore the errors returned by the exporters (#1259)
• Build and publish MSI (#1153) and DEB/RPM packages (#1278, #1335)
• Added batch size metric to batch processor (#1241)
• Added log support for memorylimiter processor (#1291) and logging exporter (#1298)
• Always add tags for observability, other metrics may use them (#1312)
• Added metrics support (#1313) and allow partial retries in queued_retry processor (#1297)
• Update resource processor: introduce attributes config parameter to specify actions on attributes similar to attributes processor, old config interface is deprecated (#1315)
• Update memory state labels for non-Linux OSs (#1325)
• Ensure tcp connection value is provided for all states, even when count is 0 (#1329)
• Set batch processor channel size to num cpus (#1330)
• Add send_batch_max_size config parameter to batch processor enforcing hard limit on batch size (#1310)
• Add support for including a per-RPC authentication to gRPC settings (#1250)

🧰 Bug fixes 🧰

• Fixed OTLP waitForReady, not set from config (#1254)
• Fixed all translation diffs between OTLP and Jaeger (#1222)
• Disabled process scraper for any non Linux/Windows OS (#1328)

v0.5.0 Beta

🛑 Breaking changes 🛑

• Update OTLP to v0.4.0 (#1142): Collector will be incompatible with any other sender or receiver of OTLP protocol of different versions
• Make "--new-metrics" command line flag the default (#1148)
• Change endpoint to url in Zipkin exporter config (#1186)
• Change tls_credentials to tls_settings in Jaegar receiver config (#1233)
• OTLP receiver config change for protocols to support mTLS (#1223)
• Remove export_resource_labels flag from Zipkin exporter (#1163)

🚀 New components 🚀

• Receivers
  • Added process scraper to the hostmetrics receiver (#1047)

💡 Enhancements 💡

• otlpexporter: send configured headers in request (#1130)
• Enable Collector to be run as a Windows service (#1120)
• Add config for HttpServer (#1196)
• Allow cors in HTTPServerSettings (#1211)
• Add a generic grpc server settings config, cleanup client config (#1183)
• Rely on gRPC to batch and loadbalance between connections instead of custom logic (#1212)
• Allow to tune the read/write buffers for gRPC clients (#1213)
• Allow to tune the read/write buffers for gRPC server (#1218)

🧰 Bug fixes 🧰

• Handle overlapping metrics from different jobs in prometheus exporter (#1096)
• Fix handling of SpanKind INTERNAL in OTLP OC translation (#1143)
• Unify zipkin v1 and v2 annotation/tag parsing logic (#1002)
• mTLS: Add support to configure client CA and enforce ClientAuth (#1185)
• Fixed untyped Prometheus receiver bug (#1194)
• Do not embed ProtocolServerSettings in gRPC (#1210)
• Add Context to the missing CreateMetricsReceiver method (#1216)

v0.4.0 Beta

Released 2020-06-16

🛑 Breaking changes 🛑

• isEnabled configuration option removed (#909)
• thrift_tchannel protocol moved from jaeger receiver to jaeger_legacy in contrib (#636)

⚠️ Major changes ⚠️

• Switch from localhost to 0.0.0.0 by default for all receivers (#1006)
• Internal API Changes (only impacts contributors)
  • Add context to Start and Stop methods in the component (#790)
  • Rename AttributeValue and AttributeMap method names (#781) (other breaking changes in the internal trace data types)
  • Change entire repo to use the new vanityurl go.opentelemetry.io/collector (#977)

🚀 New components 🚀

• Receivers
  • hostmetrics receiver with CPU (#862), disk (#921), load (#974), filesystem (#926), memory (#911), network (#930), and virtual memory (#989) support
• Processors
  • batch for batching received metrics (#1060)
  • filter for filtering (dropping) received metrics (#1001)

💡 Enhancements 💡

• otlp receiver implement HTTP X-Protobuf (#1021)
• Exporters: Support mTLS in gRPC exporters (#927)
• Extensions: Add zpages for service (servicez, pipelinez, extensions) (#894)

🧰 Bug fixes 🧰

• Add missing logging for metrics at debug level (#1108)
• Fix setting internal status code in jaeger receivers (#1105)
• zipkin export fails on span without timestamp when used with queued_retry (#1068)
• Fix zipkin receiver status code conversion (#996)
• Remove extra send/receive annotations with using zipkin v1 (#960)
• Fix resource attribute mutation bug when exporting in jaeger proto (#907)
• Fix metric/spans count, add tests for nil entries in the slices (#787)

🧩 Components 🧩

Traces

Receivers	Processors	Exporters
Jaeger	Attributes	File
OpenCensus	Batch	Jaeger
OTLP	Memory Limiter	Logging
Zipkin	Queued Retry	OpenCensus
	Resource	OTLP
	Sampling	Zipkin
	Span

Metrics

Receivers	Processors	Exporters
HostMetrics	Batch	File
OpenCensus	Filter	Logging
OTLP	Memory Limiter	OpenCensus
Prometheus		OTLP
VM Metrics		Prometheus

Extensions

• Health Check
• Performance Profiler
• zPages

v0.3.0 Beta

Released 2020-03-30

Breaking changes

• Make prometheus receiver config loading strict. #697 Prometheus receiver will now fail fast if the config contains unused keys in it.

Changes and fixes

• Enable best effort serve by default of Prometheus Exporter (orijtech/prometheus-go-metrics-exporter#6)
• Fix null pointer exception in the logging exporter #743
• Remove unnecessary condition to have at least one processor #744

Components

Receivers / Exporters	Processors	Extensions
Jaeger	Attributes	Health Check
OpenCensus	Batch	Performance Profiler
OpenTelemetry	Memory Limiter	zPages
Zipkin	Queued Retry
	Resource
	Sampling
	Span

v0.2.8 Alpha

Alpha v0.2.8 of OpenTelemetry Collector

• Implemented OTLP receiver and exporter.
• Added ability to pass config to the service programmatically (useful for custom builds).
• Improved own metrics / observability.
• Refactored component and factory interface definitions (breaking change #683)

v0.2.7 Alpha

Alpha v0.2.7 of OpenTelemetry Collector

• Improved error handling on shutdown
• Partial implementation of new metrics (new obsreport package)
• Include resource labels for Zipkin exporter
• New HASH action to attribute processor

v0.2.6 Alpha

Alpha v0.2.6 of OpenTelemetry Collector.

• Update metrics prefix to otelcol and expose command line argument to modify the prefix value.
• Extend Span processor to have include/exclude span logic.
• Batch dropped span now emits zero when no spans are dropped.

v0.2.5 Alpha

Alpha v0.2.5 of OpenTelemetry Collector.

• Regexp-based filtering of spans based on service names.
• Ability to choose strict or regexp matching for include/exclude filters.

v0.2.4 Alpha

Alpha v0.2.4 of OpenTelemetry Collector.

• Regexp-based filtering of span names.
• Ability to extract attributes from span names and rename span.
• File exporter for debugging.
• Span processor is now enabled by default.

v0.2.3 Alpha

Alpha v0.2.3 of OpenTelemetry Collector.

Changes: 21a70d6 Add a memory limiter processor (#498) 9778b16 Refactor Jaeger Receiver config (#490) ec4ad0c Remove workers from OpenCensus receiver implementation (#497) 4e01fa3 Update k8s config to use opentelemetry docker image and configuration (#459)

v0.2.2 Alpha

Alpha v0.2.2 of OpenTelemetry Collector.

Main changes visible to users since previous release:

• Improved Testbed and added more E2E tests.
• Made component interfaces more uniform (this is a breaking change).

Note: v0.2.1 never existed and is skipped since it was tainted in some dependencies.

v0.2.0 Alpha

Alpha v0.2 of OpenTelemetry Collector.

Docker image: omnition/opentelemetry-collector:v0.2.0 (we are working on getting this under an OpenTelemetry org)

Main changes visible to users since previous release:

• Rename from service to collector, the binary is now named otelcol

• Configuration reorganized and using strict mode

• Concurrency issues for pipelines transforming data addressed

Commits:

0e505d5 Refactor config: pipelines now under service (#376)
402b80c Add Capabilities to Processor and use for Fanout cloning decision (#374)
b27d824 Use strict mode to read config (#375)
d769eb5 Fix concurrency handling when data is fanned out (#367)
dc6b290 Rename all github paths from opentelemtry-service to opentelemetry-collector (#371)
d038801 Rename otelsvc to otelcol (#365)
c264e0e Add Include/Exclude logic for Attributes Processor (#363)
8ce427a Pin a commit for Prometheus dependency in go.mod (#364)
2393774 Bump Jaeger version to 1.14.0 (latest) (#349)
63362d5 Update testbed modules (#360)
c0e2a27 Change dashes to underscores to separate words in config files (#357)
7609eaa Rename OpenTelemetry Service to Collector in docs and comments (#354)
bc5b299 Add common gRPC configuration settings (#340)
b38505c Remove network access popups on macos (#348)
f7727d1 Fixed loop variable pointer bug in jaeger translator (#341)
958beed Ensure that ConsumeMetricsData() is not passed empty metrics in the Prometheus receiver (#345)
0be295f Change log statement in Prometheus receiver from info to debug. (#344)
d205393 Add Owais to codeowners (#339)
8fa6afe Translate OC resource labels to Jaeger process tags (#325)

v0.0.2 Alpha

Alpha release of OpenTelemetry Service.

Docker image: omnition/opentelemetry-service:v0.0.2 (we are working on getting this under an OpenTelemetry org)

Main changes visible to users since previous release:

8fa6afe Translate OC resource labels to Jaeger process tags (#325)
047b0f3 Allow environment variables in config (#334)
96c24a3 Add exclude/include spans option to attributes processor (#311)
4db0414 Allow metric processors to be specified in pipelines (#332)
c277569 Add observability instrumentation for Prometheus receiver (#327)
f47aa79 Add common configuration for receiver tls (#288)
a493765 Refactor extensions to new config format (#310)
41a7afa Add Span Processor logic
97a71b3 Use full name for the metrics and spans created for observability (#316)
fed4ed2 Add support to record metrics for metricsexporter (#315)
5edca32 Add include_filter configuration to prometheus receiver (#298)
0068d0a Passthrough CORS allowed origins (#260)

v0.0.1 Alpha

This is the first alpha release of OpenTelemetry Service.

Docker image: omnition/opentelemetry-service:v0.0.1