🚀 open-telemetry/opentelemetry-collector - Release Notes

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.123.0

## End User Changelog

### 🛑 Breaking changes 🛑

- `service/telemetry`: Mark `telemetry.disableAddressFieldForInternalTelemetry` as beta, usage of deprecated service::telemetry::address are ignored (#12756)
  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](https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/rfcs/component-universal-telemetry.md#attributes),
  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)



## API Changelog

### 🛑 Breaking changes 🛑

- `otlpreceiver/otlpexporter/otlphttpexporter`: Avoid using go embedded messages in Config (#12718)
- `exporterqueue`: Move Queue interface to internal, disallow alternative implementations (#12680)
- `extensionauth, configauth`: Remove deprecated types and functions from `extensionauth` and `configauth` packages. (#12672)
  This includes:
  - `extensionauth.NewClient`,
  - `extensionauth.ClientOption` and all its implementations,
  - `extensionauth.NewServer`,
  - `extensionauth.ServerOption` and all its implementations and
  - `configauth.Authenticator.GetClientAuthenticator`.
  
- `exporterhelper`: Remove deprecated converter types from exporterhelper (#12686)
- `exporterbatch`: Remove deprecated fields `min_size_items` and `max_size_items` from batch config. (#12684)

### 🚩 Deprecations 🚩

- `exporterhelper`: Deprecate BatcherConfig, SizeConfig and WithBatcher in favor of the new QueueBatchConfig. (#12748)
- `exporterbatcher`: Deprecated Config, SizeConfig, SizerType, SizerType[Requests|Items|Bytes], NewDefaultConfig. Use alias from exporterhelper. (#12707)
- `exporterqueue`: Deprecated Config, NewDefaultConfig, Encoding, ErrQueueFull. Use alias from exporterhelper. (#12706)
- `exporterhelper`: Deprecate exporterhelper WithRequestQueue in favor of WithQueueBatch (#12679)
- `exporterhelper`: Deprecate `QueueConfig` in favor of `QueueBatchConfig`. (#12746)

### 💡 Enhancements 💡

- `extensionauth`: Mark module as stable (#11006)
- `processor`: Mark module as stable. (#12677)
- `processorhelper`: Split processorhelper into a separate module. (#12678)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.122.1

## End User Changelog

### 🧰 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.



## API Changelog

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.122.0

## End User Changelog

### 🛑 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)



## API Changelog

### 🛑 Breaking changes 🛑

- `auth, authtest`: Remove deprecated modules extension/auth and extension/auth/authtest (#12543)
  Use extension/extensionauth and extension/extensionauth/extensionauthtest instead.
  
- `extensionauth`: Remove deprecated methods from the `Func` types. (#12547)
- `extensiontest, connectortest, processortest, receivertest, scrapertest, exportertest`: Remove deprecated `NewNopSettingsWithType` functions, use `NewNopSettings` instead. (#12221)
- `extensionauthtest`: Remove the `extensionauthtest.MockClient` struct. (#12567)
  - Use `extensionauthtest.NewNopClient` to create a client with a noop implementation. 
  - Use `extensionauthtest.NewErrorClient` to create a client that always returns an error.
  - Implement the `extensionauth` interfaces for custom mock client implementations.
  
- `component/componenttest`: Remove the deprecated componenttest.TestTelemetry in favor of componenttest.Telemetry (#12419)
- `exporterhelper`: Remove the Request.Export function in favor of an equivalent request consume func in the New[Traces|Metrics|Logs|Profiles]Request (#12637)

### 🚩 Deprecations 🚩

- `exporterhelper`: Deprecate per signal converter in favor of generic version (#12631)
- `extensionauth`: Deprecate `extensionauth.NewClient` and `extensionauth.NewServer`. (#12574)
  - Manually implement the interfaces instead.
  
- `configauth`: Deprecate `configauth.Authenticator.GetClientAuthenticator`. (#12574)
  - Use the per-protocol methods instead.
  

### 🚀 New components 🚀

- `receiverhelper`: Split `receiverhelper` into a separate module (#28328)

### 💡 Enhancements 💡

- `cmd/mdatagen`: Add `supportsSignal` func for `Metadata` type in `mdatagen`. (#12640)
- `receiver`: Mark module as stable (#12513)
- `pdata/pcommon`: Introduce `Equal()` method for comparison equality to `Value`, `ByteSlice`, `Float64Slice`, `Int32Slice`, `Int64Slice`, `StringSlice`, `Uint64Slice`, `Map` and `Slice` (#12594)
- `pdata`: Add iterator All method to pdata slices and map types. (#11982)
- `pdata/pprofile`: Introduce AddAttribute helper method to modify the content of attributable records (#12206)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.121.0

## End User Changelog

### 🛑 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)

## API Changelog

### 🛑 Breaking changes 🛑

- `exporterqueue`: Remove exporterqueue.Factory in favor of the NewQueue function, and merge configs for memory and persistent. (#12509)
  As a side effect of this change, no alternative implementation of the queue are supported and the Queue interface will be hidden.
- `exporterhelper`: Update MergeSplit function signature to use the new SizeConfig (#12486)
- `extension, connector, processor, receiver, exporter, scraper`: Remove deprecated `Create*` methods from `Create*Func` types. (#12305)
  The `xconnector.CreateMetricsToProfilesFunc.CreateMetricsToProfiles` method has been removed without a deprecation.
  
- `component`: Remove deprecated function and interface `ConfigValidator` and `ValidateConfig`. (#11524)
  - Use `xconfmap.Validator` and `xconfmap.Validate` instead.
  
- `receiver, scraper, processor, exporter, extension`: Remove deprecated MakeFactoryMap functions in favor of generic implementation (#12222)
- `exporterhelper`: Change the signature of the exporterhelper.WithQueueRequest to accept Encoding instead of the Factory. (#12509)
- `component/componenttest`: Removing the deprecated `CheckReceiverMetrics` and `CheckReceiverTraces` functions. (#12185)

### 🚩 Deprecations 🚩

- `componenttest`: Deprecated componenttest.TestTelemetry in favor of componenttest.Telemetry (#12419)
- `connector, exporter, extension, processor, receiver, scraper`: Add type parameter to `NewNopSettings` and deprecate `NewNopSettingsWithType` (#12305)
- `exporterhelper`: Deprecate MinSizeConfig and MaxSizeItems. (#12486)
- `extension/extensionauth`: Deprecate methods on `*Func` types. (#12480)
- `extension/auth, extension/auth/authtest`: Deprecate extension/auth and the related test module in favor of extension/extensionauth (#12478)

### 🚀 New components 🚀

- `service/hostcapabilities`: create `service/hostcapabilities` module (#12296, #12375)
  Removes getExporters interface in service/internal/graph.
  Removes getModuleInfos interface in service/internal/graph.
  Creates interface ExposeExporters in service/hostcapabilities to expose GetExporters function.
  Creates interface ModuleInfo in service/hostcapabilities to expose GetModuleInfos function.
  

### 💡 Enhancements 💡

- `exporterhelper`: Adds the config API to support serialized bytes based batching (#3262)
- `configauth`: Add the `omitempty` mapstructure tag to struct fields (#12191)
  This results in unset fields not being rendered when marshaling.
- `confighttp`: Add the `omitempty` mapstructure tag to struct fields (#12191)
  This results in unset fields not being rendered when marshaling.
- `otelcol`: Converters are now available in the `components` command. (#11900, #12385)
- `extension`: Mark module as stable (#11005)
- `pcommon.Map`: preallocate go map in Map.AsRaw() (#12406)
- `exporterhelper`: Stabilize exporter.UsePullingBasedExporterQueueBatcher and remove old batch sender (#12425)
- `service`: Add the `omitempty` mapstructure tag to struct fields (#12191)
  This results in unset fields not being rendered when marshaling.

### 🧰 Bug fixes 🧰

- `mdatagen`: Fix broken imports in the generated files. (#12298)
- `processor, connector, exporter, receiver`: Explicitly error out at component creation time if there is a type mismatch. (#12305)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.120.0

## End User Changelog

### 🛑 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](https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/rfcs/component-universal-telemetry.md#attributes)
  

### 💡 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)

## API Changelog

### 🛑 Breaking changes 🛑

- `configauth`: Remove NewDefaultAuthentication (#12223)
  The value returned by this function will always cause an error on startup.
  In `configgrpc.Client/ServerConfig.Auth`, `nil` should be used instead to disable authentication.
  
- `otelcol`: Make the `ConfigProvider` interface a struct (#12297)
  Calls to `NewConfigProvider` will now return `*ConfigProvider`,
  but will otherwise work the same as before.
  
- `extension`: Remove `extension.Settings.ModuleInfo` (#12296)
  - The functionality is now available as an optional, hidden interface on `service`'s implementation of the `Host`
  
- `component`: Remove deprecated field `component.TelemetrySettings.MetricsLevel`. (#11061)
- `confighttp`: Add `ToClientOption` type and add it to signature of `ToClient` method. (#12353)
  - This has no use for now, it may be used in the future.
  
- `mdatagen`: Remove unused not_component config for mdatagen (#12237)

### 🚩 Deprecations 🚩

- `component/componenttest`: Deprecate CheckReceiverMetrics in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckReceiverMetrics`
- `component/componenttest`: Deprecate CheckReceiverTraces in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckReceiverTraces`
- `component`: Deprecate `ConfigValidator` and `ValidateConfig` (#11524)
  Please use `Validator` and `Validate` respectively from `xconfmap`.
- `receiver, scraper, processor, exporter, extension`: Deprecate existing MakeFactoryMap functions in favor of generic implementation (#12222)
- `extension, connector, processor, receiver, exporter, scraper`: Deprecate `Create*` methods from `Create*Func` types. (#12305)
- `extensiontest, connectortest, processortest, receivertest, exportertest, scrapertest`: Deprecate `*test.NewNopSettings` in favor of `*test.NewNopSettingsWithType` (#12305)

### 🚀 New components 🚀

- `xconfmap`: Create the xconfmap module and add the `Validator` interface and `Validate` function to facilitate config validation (#11524)

### 💡 Enhancements 💡

- `configgrpc`: Add the `omitempty` mapstructure tag to struct fields (#12191)
  This results in unset fields not being rendered when marshaling.
- `confignet`: Add the `omitempty` mapstructure tag to struct fields (#12191)
  This results in unset fields not being rendered when marshaling.
- `configtls`: Add the `omitempty` mapstructure tag to struct fields (#12191)
  This results in unset fields not being rendered when marshaling.
- `consumer`: Clarify that data cannot be accessed after Consume* func is called. (#12284)
- `pdata/pprofile`: Introduce aggregation temporality constants (#12253)

### 🧰 Bug fixes 🧰

- `configgrpc`: Apply configured Headers automatically (#12307)
  configgrpc now calls metadata.AppendToOutgoingContext automatically in an interceptor.
  Components that were manually using metadata.NewOutgoingContext as a workaround no longer need to
  do so, unless they are overwriting or adding header keys.
  
- `configgrpc`: Set Auth to nil in NewDefaultClientConfig/NewDefaultServerConfig (#12223)
  The value that was used previously would always cause an error on startup.
  
- `exporterqueue`: Fix async queue to propagate cancellation all they way to the queue (#12282)
- `otlpreceiver`: Fix OTLP http receiver to correctly set Retry-After (#12367)
- `extension`: Explicitly error out at extension creation time if there is a type mismatch. (#12305)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.119.0

## End User Changelog

### 🛑 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.

### 💡 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 temporaly 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)

## API Changelog

### 🛑 Breaking changes 🛑

- `exporterhelper`: Change queue to embed the async consumers. (#12242)
- `exporterqueue`: Change Queue interface to return a callback instead of an index (#8122)
- `cmd/mdatagen`: Allow passing OTel Metric SDK options to the generated `SetupTelemetry` function. (#12166)
- `exporterhelper`: Rename exporter span signal specific attributes (e.g. "sent_spans" / "send_failed_span") to "items.sent" / "items.failed". (#12165)
- `component`: Change underlying type for `component.Kind` to be a struct. (#12214)
- `extension`: Change `extension.Extension` to be an interface that embeds `component.Component` instead of an alias (#11443)
- `component/componenttest`: Remove deprecated `CheckScraperMetrics` functions (#12183)
- `scraperhelper`: Remove deprecated ScrapperControllerOption and NewScraperControllerMetrics from scraperhelper. (#12147)

### 🚩 Deprecations 🚩

- `metadatatest`: Deprecate metadatatest.Telemetry in favor of componenttest.Telemetry (#12218)
  metadatatest.Telemetry -> componenttest.Telemetry |
  metadatatest.SetupTelemetry -> componenttest.NewTelemetry |
  metadatatest.Telemetry.NewSettings -> metadatatest.NewSettings |
  metadatatest.Telemetry.AssertMetrics -> metadatatest.AssertEqual* |
  
- `component/componenttest`: Deprecate `CheckExporterEnqueue*` functions in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckExporterEnqueue*` functions.
- `component/componenttest`: Deprecate CheckExporterLogs in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckExporterLogs`
- `component/componenttest`: Deprecate CheckExporterMetricGauge in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckReceiverMetricGauge`
- `component/componenttest`: Deprecate CheckExporterMetrics in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckExporterMetrics`
- `component/componenttest`: Deprecate CheckExporterTraces in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckExporterTraces`
- `component/componenttest`: Deprecate CheckReceiverLogs in componenenttest (#12185)
  Use the `metadatatest.AssertEqualMetric` series of functions instead of `obsreporttest.CheckReceiverLogs`
- `mdatagen`: Make registration of callback for async metric always optional. (#12204)
  Deprecate `metadata.TelemetryBuilder.Init*` and `metadata.With*Callback` in favor of `metadata.TelemetryBuilder.Register*Callback`
- `component`: Deprecate `component.TelemetrySettings.MetricsLevel` in favor of using views and 'Enabled' method. (#12159)
  - Components will temporarily need the service to support using views.
  

### 💡 Enhancements 💡

- `componenttest`: Add helper to get a metric for componentest.Telemetry (#12215)
- `componenttest`: Extract componenttest.Telemetry as generic struct for telemetry testing (#12151)
- `mdatagen`: Generate assert function for each metric in mdatagen (#12179)
- `metadatatest`: Generate NewSettings that accepts componenttest.Telemetry (#12216)
- `pdata/pprofile`: Add new helper method `FromAttributeIndices` to build a `pcommon.Map` out of `AttributeIndices`. (#12176)
- `scraper`: Support logs scraper (#12116)
- `component`: Allow `component.ValidateConfig` to recurse through all fields in a config object (#11524)
- `component`: Show path to invalid config in errors returned from `component.ValidateConfig` (#12108)

### 🧰 Bug fixes 🧰

- `mdatagen`: All register callbacks to async instruments can now be unregistered by calling `metadata.TelemetryBuilder.Shutdown()` (#12204)
- `mdatagen`: Fix bug where Histograms were marked as not supporting temporaly aggregation (#12168)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.118.0

## End User Changelog

### 💡 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)

## API Changelog

### 🛑 Breaking changes 🛑

- `exporterqueue`: Change Queue Size and Capacity to return explicit int64. (#12076)
- `receiver/scraperhelper`: Removing the deprecated receiver/scraperhelper package (#12054)
- `processorteset`: Revert the nop_processor.NewNopSettings change, as it is no longer needed (#11433)
- `experimental/storage`: Remove deprecated package/module experimental/storage (#12109)
- `mdatagen`: Remove deprecated generated_component_telemetry_test file from being generated and delete it. (#12068)
- `receivertest`: Remove deprecated receivertest.NewNopFactoryForType (#12110)

### 🚩 Deprecations 🚩

- `componenttest`: Deprecate CheckScraperMetrics in componenenttest (#12105)
  Use `metadatatest.AssertMetrics` instead of `obsreporttest.CheckScraperMetrics`
- `scraperhelper`: Deprecate `scraperhelper.NewScraperControllerReceiver` and `scraperhelper.ScraperControllerOption`. (#12103)
  Use `scraperhelper.NewMetricsController` instead of `scraperhelper.NewScraperControllerReceiver` | Use `scraperhelper.ScraperControllerOption` instead of `scraperhelper.ControllerOption`

### 💡 Enhancements 💡

- `exporterhelper`: Add capability for memory and persistent queue to block when add items (#12074)
- `scraper/scraperhelper`: Add obs_logs for scraper/scraperhelper (#12036)
  This change adds obs for logs in scraper/scraperhelper, also introduced new metrics for scraping logs.
- `mdatagen`: Add scraper component type support to mdatagen (#12092)
- `mdatagen`: Add tracing support in metadatatest (#12106)
- `exporterhelper`: Change persistent queue to not use sized channel, improve memory usage and simplify sized_channel. (#12060)
- `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.

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.117.0

## End User Changelog

## 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)

## API Changelog

## v1.23.0/v0.117.0

### 🛑 Breaking changes 🛑

- `pdata/pprofile`: Remove duplicate Attributes field from profile (#11932)
- `connector`: Remove deprecated connectorprofiles module, use xconnector instead. (#11778)
- `consumererror`: Remove deprecated consumererrorprofiles module, use xconsumererror instead. (#11778)
- `consumer`: Remove deprecated consumerprofiles module, use xconsumer instead. (#11778)
- `exporterhelper`: Remove deprecated exporterhelperprofiles module, use xexporterhelper instead. (#11778)
- `exporter`: Remove deprecated exporterprofiles module, use xexporter instead. (#11778)
- `pipeline`: Remove deprecated pipelineprofiles module, use xpipeline instead. (#11778)
- `processorhelper`: Remove deprecated processorhelperprofiles module, use xprocessorhelper instead. (#11778)
- `processor`: Remove deprecated processorprofiles module, use xprocessor instead. (#11778)
- `receiver`: Remove deprecated receiverprofiles module, use xreceiver instead. (#11778)
- `exporterhelper`: Remove Merge function from experimental Request interface (#12012)

### 🚩 Deprecations 🚩

- `mdatagen`: Deprecate component_test in favor of metadatatest (#11812)
- `receivertest`: Deprecate receivertest.NewNopFactoryForType (#11993)
- `extension/experimental`: Deprecate extension/experimental in favor of extension/xextension (#12010)
- `scraperhelper`: Move scraperhelper under scraper and in a separate module. (#11003)

### 💡 Enhancements 💡

- `scrapertest`: Add scrapertest package in a separate module (#11988)
- `pdata`: Upgrade pdata to opentelemetry-proto v1.5.0 (#11932)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.116.0

## End User Changelog

## 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)

## API Changelog

## v1.22.0/v0.116.0

### 🛑 Breaking changes 🛑

- `component`: Remove deprecated TelemetrySettings.LeveledMeterProvider (#11811)
- `scraperhelper`: Remove deprecated scraperhelper.Scraper and helpers (#11803)

### 🚩 Deprecations 🚩

- `connector`: Deprecate connectorprofiles module in favor of xconnector to allow adding more experimental data types. (#11778)
- `consumererror`: Deprecate consumererrorprofiles module in favor of xconsumererror to allow adding more experimental data types. (#11778)
- `consumer`: Deprecate consumerprofiles module in favor of xconsumer to allow adding more experimental data types. (#11778)
- `exporterhelper`: Deprecate exporterhelperprofiles module in favor of xexporterhelper to allow adding more experimental data types. (#11778)
- `exporter`: Deprecate exporterprofiles module in favor of xexporter to allow adding more experimental data types. (#11778)
- `pipeline`: Deprecate pipelineprofiles module in favor of xpipeline to allow adding more experimental data types. (#11778)
- `processorhelper`: Deprecate processorhelperprofiles module in favor of xprocessorhelper to allow adding more experimental data types. (#11778)
- `processor`: Deprecate processorprofiles module in favor of xprocessor to allow adding more experimental data types. (#11778)
- `receiver`: Deprecate receiverprofiles module in favor of xreceiver to allow adding more experimental data types. (#11778)
- `receiver/scrapererror`: Remove the receiver/scrapererror alias. (#11003)

### 💡 Enhancements 💡

- `receiver/scraperhelper`: Add scraper for logs (#11238)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.115.0

## End User Changelog

## 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)

## API Changelog

## v1.21.0/v0.115.0

### 🛑 Breaking changes 🛑

- `extension/auth/authtest`: `authtest` is now its own module (#11465, #11705)
- `pdata/pprofile`: AttributeTable is now a slice rather than a map (#11706)
- `scraperhelper`: Remove deprecated scraperhelper funcs Scraper.ID, NewScraper, AddScraper. (#11710)
- `mdatagen`: Remove deprecated LeveledMeter from the generated code (#11696)

### 🚩 Deprecations 🚩

- `component`: Mark `TelemetrySettings.LeveledMeterProvider` as deprecated (#11697)
- `receiver/scraper`: Move receiver/scrapererror package to scraper/scrapererror and deprecate original receiver/scrapererror package. (#11003)
- `scraperhelper`: Make Scraper compatible with the new scraper.Metrics (#11682)
  Deprecate scraperhelper.Scraper in favor of scraper.Metrics

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.114.0

## End User Changelog

## 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:
  ```
  providers:
    - gomod: module.url/my/custom/provider v1.2.3
      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.

## API Changes

## v1.20.0/v0.114.0

### 🛑 Breaking changes 🛑

- `extensiontest`: Make extensiontest into its own module (#11463)
- `component`: Make componenttest into its own module (#11464)
- `expandconverter`: Remove deprecated expandvar converter (#11672)
- `exporter`: Remove deprecated funcs Create[*]Exporter and [*]ExporterStability (#11662)
- `exporterhelper`: Remove derprecated NewLogs[Request]Exporter funcs (#11661)
- `extension`: Remove deprecated funcs CreateExtension and ExtensionStability (#11663)
- `processortest`: Remove deprecated func NewUnhealthyProcessorCreateSettings (#11665)

### 🚩 Deprecations 🚩

- `component`: Deprecate `TelemetrySettings.LeveledMeterProvider` and undo deprecation of `TelemetrySettings.MeterProvider` (#11061)
- `scraperhelper`: Deprecate Scraper.ID func, pass type when register Scraper (#11238)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.113.0

## End User Changelog

## 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 lastest stable releases (#11566)

## API Changes

## v1.19.0/v0.113.0

### 🛑 Breaking changes 🛑

- `builder`: Remove deprecated flags from Builder (#11576)
  Here is the list of flags | --name, --description, --version, --otelcol-version, --go, --module

### 🚀 New components 🚀

- `processorhelperprofiles`: Add processorhelperprofiles to support profiles signal (#11556)

### 💡 Enhancements 💡

- `mdatagen`: Add newTelemetrySettings to be generated all the time even for pkg class (#11535)
- `debugexporter`: Add profiles support to debug exporter (#11155)
- `component`: Add UnmarshalText for StabilityLevel (#11520)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.112.0

## End User Changelog

## v1.18.0/v0.112.0

### 🛑 Breaking changes 🛑

- `consumer/consumererror`: Extract consumer/consumererror as a separate go module (#11440)
- `exporter/expotertest`: Put expotertest 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)

## API Changes

## v1.18.0/v0.112.0

### 🛑 Breaking changes 🛑

- `service`: Change Host to not implement GetExportersWithSignal (#11444)
  Use Host.GetExporters if still needed.
- `componentstatus`: Remove deprecated `NewInstanceIDWithPipelineIDs`, `AllPipelineIDsWithPipelineIDs`, and `WithPipelineIDs`. Use `NewInstanceID`, `AllPipelineIDs` and `WithPipelines` instead. (#11363)
- `configgrpc`: Removed deprecated `ClientConfig.ToClientConnWithOptions`/`ServerConfig.ToServerWithOptions`. (#11359, #9480)
  These methods were renamed to `ClientConfig.ToClientConn`/`ServerConfig.ToServer` in v0.111.0.
- `connector`: Put connectortest in its own module (#11216)
- `exporter`: Disables setting batch option to batch sender directly. (#10368)
  Removed WithRequestBatchFuncs(BatcherOption) in favor of WithBatchFuncs(Option), where | BatcherOption is a function that operates on batch sender and Option is one that operates | on BaseExporter
- `exporter`: Made mergeFunc and mergeSplitFunc required method of exporter.Request (#10368)
  mergeFunc and mergeSplitFunc used to be part of the configuration pass to the exporter. Now it is changed | to be a method function of request.
- `componentprofiles`: Move componentprofiles to pipelineprofiles (#11421)
- `processor`: Put processortest in its own module (#11218)
- `receivertest`: Removed deprecated `NewNopFactoryForTypeWithSignal`. Use `NewNopFactoryForType` instead. (#11362)
- `processor`: Remove deprecated funcs from processor package (#11368)
- `receiver`: Remove deprecated funcs from receiver package (#11367)
- `processorhelper`: Remove deprecated funcs/types from processorhelper & componenttest (#11302)
- `service`: Remove deprecated `pipelines.ConfigWithPipelineID` and `Config.PipelinesWithPipelineID`. Use `pipelines.Config` and `Config.Pipelines` instead. (#11361)

### 🚩 Deprecations 🚩

- `extension`: Deprecate funcs that repeat extension in name (#11413)
  Factory.CreateExtension -> Factory.Create |
  Factory.ExtensionStability -> Factory.Stability
  
- `exporter`: Deprecate funcs that repeate exporter in name (#11370)
  Factory.Create[Traces|Metrics|Logs|Profiles]Exporter -> Factory.Create[Traces|Metrics|Logs|Profiles] |
  Factory.[Traces|Metrics|Logs|Profiles]ExporterStability -> Factory.[Traces|Metrics|Logs|Profiles]Stability
  

### 🚀 New components 🚀

- `consumererrorprofiles`: Add new module consumereerrorprofiles for consumer error profiles. (#11131)

### 💡 Enhancements 💡

- `configcompression`: Add support for lz4 compression (#9128)
- `otlpexporter`: Add profiles support to OTLP exporter (#11435)
- `otlphttpexporter`: Add profiles support to OTLP HTTP exporter (#11450)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.111.0

:new: The binary release adds a new [OTLP-only distro](https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-otlp#opentelemetry-collector-otlp-distro). Feel free to leave us feedback on this new distro on the [opentelemetry-collector-releases issue tracker](https://github.com/open-telemetry/opentelemetry-collector-releases/issues/new).

## End User Changelog

### 🐛 Known bugs 🐛

- The `ocb` binary has an identified bug caused by the fact that some of the providers have been marked stable and the default providers in the `ocb` binary still use the unstable version. In order to fix this explicitly add the default providers in your otel builder config, if not already configured:

```
providers:
  - gomod: go.opentelemetry.io/collector/confmap/provider/envprovider v1.17.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/fileprovider v1.17.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/httpprovider v1.17.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/httpsprovider v1.17.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/yamlprovider v1.17.0
``` 

**This release removes the `logging` exporter. See #11337 to migrate to the `debug` exporter.**

### 🛑 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).
   You can read issue #11337 for migration instructions.

### 🚩 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)

## API Changes


### 🛑 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'.
- `componentprofiles`: Removed deprecated `DataTypeProfiles`.  Use `SignalProfiles` instead. (#11312)
- `configgrpc`: Replace ToClientConn and ToServer with ToClientConnWithOptions and ToServerWithOptions. (#11271, #9480)
  `ClientConfig.ToClientConn` and `ServerConfig.ToServer` were deprecated in v0.110.0 in favor of
  `ClientConfig.ToClientConnWithOptions` and `ServerConfig.ToServerWithOptions` which use a more
  flexible option type. The original functions are now removed, and the new ones are renamed to the
  old names. The `WithOptions` names are kept as deprecated aliases for now.
  
- `exporterhelper`: Removed deprecated `QueueTimeout`/`TimeoutSettings` aliases in favor of `QueueConfig`/`TimeoutConfig`. (#11264, #6767)
  `NewDefaultQueueSettings` and `NewDefaultTimeoutSettings` have been similarly renamed.
- `exporterqueue`: Remove deprecated `Settings.DataType`. Use `Settings.Signal` instead. (#11305)
- `exportertest`: Remove deprecated `CheckConsumeContractParams.DataType`. Use `CheckConsumeContractParams.Signal` instead. (#11305)
- `component`: Removed deprecated `ErrDataTypeIsNotSupported`, `DataType`, `DataTypeTraces`, `DataTypeMetrics`, and `DataTypeLogs`.  Use `pipeline.ErrSignalNotSupported`, `pipeline.Signal`, `pipeline.SignalTraces`, `pipeline.SignalMetrics`, and `pipeline.SignalLogs` instead. (#11253)
- `pdata/pprofile`: Replace slices of values to slices of pointers for the `Mapping`, `Location`, `Line`, `Function`, `AttributeUnit`, `Link`, `Value`, `Sample` and `Labels` attributes. (#11339)
- `receivertest`: Remove deprecated `CheckConsumeContractParams.DataType`. Use `CheckConsumeContractParams.Signal` instead. (#11304)
- `scraperhelper`: Remove deprecated function `NewScraperWithComponentType`. (#11294)
- `processorhelper`: Remove deprecated funcs form processorhelper.ObsReport (#11289)
  The "otelcol_processor_dropped_log_records", "otelcol_processor_dropped_log_records" | and "otelcol_processor_dropped_spans" metrics are complete removed, before they were always record with 0 values.

### 🚩 Deprecations 🚩

- `componentstatus`: Deprecated `NewInstanceIDWithPipelineIDs`, `AllPipelineIDsWithPipelineIDs`, and `WithPipelineIDs`. Use `NewInstanceID`, `AllPipelineIDs`, and `WithPipelines` instead. (#11313)
- `processorhelper`: Deprecate unused and empty struct processorhelper.ObsReport (#11293)
- `processor`: Deprecate funcs that repeat "processor" in name (#11310)
  Factory.Create[Traces|Metrics|Logs|Profiles]Processor -> Factory.Create[Traces|Metrics|Logs|Profiles]
  Factory.[Traces|Metrics|Logs|Profiles]ProcessorStability -> Factory.[Traces|Metrics|Logs|Profiles]Stability
  
- `receiver`: Deprecate funcs that repeat "receiver" in name (#11287)
  Factory.Create[Traces|Metrics|Logs|Profiles]Receiver -> Factory.Create[Traces|Metrics|Logs|Profiles]
  Factory.[Traces|Metrics|Logs|Profiles]ReceiverStability -> Factory.[Traces|Metrics|Logs|Profiles]Stability
  
- `receivertest`: Deprecated `NewNopFactoryForTypeWithSignal`. Use `NewNopFactoryForType` instead. (#11304)
- `service`: Deprecates `Config.PipelinesWithPipelineID`, `pipelines.ConfigWithPipelineID` and `GetExportersWithSignal` interface implementation. Use `Config.Pipelines`, `pipelines.Config`, and `GetExporters` interface implementation instead. (#11303)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.110.0

## End User Changelog

### 🛑 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.
  

## API Changes

### 🛑 Breaking changes 🛑

- `otlpexporter`: The `TimeoutSettings` field in `otlpexporter.Config` was renamed to `TimeoutConfig`. (#11132)
- `connector`: Change `TracesRouterAndConsumer`, `NewTracesRouter`, `MetricsRouterAndConsumer`, `NewMetricsRouter`, `LogsRouterAndConsumer`, and `NewLogsRouter` to use `pipeline.ID` instead of `component.ID`. (#11204)
- `extension`: Remove deprecated extension interfaces. (#11043)
  They are now available in the `extensioncapabilities` module.
  

### 🚩 Deprecations 🚩

- `exporterhelper`: Deprecate TimeoutSettings/QueueSettings in favor of TimeoutConfig/QueueConfig. (#6767)
- `configgrpc`: Deprecate `ClientConfig.ToClientConn`/`ServerConfig.ToServer` in favor of `ToClientConnWithOptions`/`ToServerWithOptions` (#9480)
  Users providing a grpc.DialOption/grpc.ServerOption should now wrap them into
  a generic option with `WithGrpcDialOption`/`WithGrpcServerOption`.
  
- `componentprofiles`: Deprecates `DataTypeProfiles`. Use `SignalProfiles` instead. (#11204)
- `componentstatus`: Deprecates `NewInstanceID`, `AllPipelineIDs`, and `WithPipelines`. Use `NewInstanceIDWithPipelineIDs`, `AllPipelineIDsWithPipelineIDs`, and `WithPipelineIDs` instead. (#11204)
- `exporterqueue`: Deprecates `Settings.DataType`. Use `Settings.Signal` instead. (#11204)
- `service`: Deprecates `pipelines.Config`. Use `pipelines.ConfigWithPipelineID` instead. (#11204)
- `component`: Deprecates `DataType`, `DataTypeTraces`, `DataTypeMetrics`, and `DataTypeLogs`. Use `pipeline.Signal`, `SignalTraces`, `SignalMetrics`, and `SignalLogs` instead. (#11204)
- `service`: Deprecates service's implementation of `GetExporters` interface.  Use `GetExportersWithSignal` instead. (#11249)
- `scraperhelper`: Deprecate NewScraperWithComponentType, should use NewScraper (#11159)

### 🚀 New components 🚀

- `pipeline`: Adds new `pipeline` module to house the concept of pipeline ID and Signal. (#11209)

### 💡 Enhancements 💡

- `pdata`: Add support to MoveTo for Map, allow avoiding copies (#11175)
- `options`: Avoid using private types in public APIs and also protect options to be implemented outside this module. (#11054)
- `mdatagen`: Avoid using private types in public APIs and also protect options to be implemented outside this module. (#11040)
- `consumertest`: Introduce SampleCount method in ProfilesSink struct. (#11225)
- `otlpreceiver`: Support profiles in the OTLP receiver (#11071)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.109.0

## End User Changelog

### 🐛 Known bugs 🐛

- The `ocb` binary has an identified bug caused by the fact that some of the providers have been marked stable and the default providers in the `ocb` binary still use the unstable version. In order to fix this explicitly add the default providers in your otel builder config, if not already configured:

```
providers:
  - gomod: go.opentelemetry.io/collector/confmap/provider/envprovider v1.15.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/fileprovider v1.15.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/httpprovider v0.109.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/httpsprovider v0.109.0
  - gomod: go.opentelemetry.io/collector/confmap/provider/yamlprovider v0.109.0
``` 

Alternatively you can pass the `--skip-strict-version-check` flag.

### 🛑 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)


## API Changes


### 🛑 Breaking changes 🛑

- `Remove `extensiontest` StatusWatcher helpers`: They were unused. They may be added back on a different module or after `componentstatus` is marked 1.0
 (#11044)
- `pprofile`: Change Profile ID field from a byte array to a custom data type (#11048)
- `connector`: Remove deprecated connector builder (#11019)
- `exporter`: Remove deprecated exporter builder (#11019)
- `extension`: Remove deprecated extension builder (#11019)
- `processor`: Remove deprecated processor builder (#11019)
- `receiver`: Remove deprecated receiver builder (#11019)

### 🚩 Deprecations 🚩

- `configtelemetry`: Deprecating `TelemetrySettings.MeterProvider` in favour of `TelemetrySettings.LeveledMeterProvider` (#10912)
- `extension`: Deprecate `extension.ConfigWatcher`, `extension.PipelineWatcher` and `extension.Dependent` in favor of equivalents in the `extensioncapabilities` module. (#11000)
- `scraperhelper`: deprecate NewScraper, should use NewScraperWithComponentType (#11082)

### 🚀 New components 🚀

- `extensioncapabilities`: Create a new module for optional extension capabilities. (#11000)

### 💡 Enhancements 💡

- `connectorprofiles`: Add ProfilesRouterAndConsumer interface, and NewProfilesRouter method. (#11023)
- `pprofileotlp`: Introduce grpc service implementation of pprofileotlp (#11048)
- `pprofile`: Introduce marshalling and unmarshalling of pprofile data (#11048)
- `service`: Support profiles in the service package (#11024)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.108.0

## End User Changelog

### 🧰 Bug fixes 🧰

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

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.108.0

## End User Changelog

### 🛑 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)

## API Changes

### 🛑 Breaking changes 🛑

- `extensions`: Remove `StatusWatcher` interface.  Use `componentstatus.Watcher` instead. (#10777)
- `component`: Removed Status related types and functions.  Use `componentstatus` instead. (#10777)
- `component`: Remove `ReportStatus` from `TelemetrySettings`. Use `componentstatus.ReportStatus` instead. (#10777)
- `componentstatus`: Make componentstatus.InstanceID immutable. (#10494)

### 🚩 Deprecations 🚩

- `scraperhelper`: deprecate NewObsReport, ObsReport, ObsReportSettings, scrapers should use NewScraperControllerReceiver (#10959)
- `mdatagen`: Deprecating generated `Meter` func in favour of `LeveledMeter` (#10939)
- `connector`: Deprecate connector.Builder, and move it into an internal package of the service module (#10784)
- `exporter`: Deprecate exporter.Builder, and move it into an internal package of the service module (#10783)
- `extension`: Deprecate extension.Builder, and move it into an internal package of the service module (#10785)
- `processor`: Deprecate processor.Builder, and move it into an internal package of the service module (#10782)
- `receiver`: Deprecate receiver.Builder, and move it into an internal package of the service module (#10781)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.107.0

## End User Changelog

## 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)


## Go API Changelog

## v1.13.0/v0.107.0

### 🛑 Breaking changes 🛑

- `otelcol`: Delete deprecated NewCommandMustSetProvider (#10778)
- `component`: Removes the deprecated `Host.GetFactory` method. (#10771)
- `otelcoltest`: The `otelcol.LoadConfig` method no longer sets the `expandconverter`. (#10510)
- `ocb`: Collectors built with OCB will no longer include the `expandconverter` (#10510)
- `exporterhelper`: Delete deprecated `exporterhelper.ObsReport` and `exporterhelper.NewObsReport` (#10779, #10592)

### 🚩 Deprecations 🚩

- `expandconverter`: Deprecate `expandconverter`. (#10510)

### 🚀 New components 🚀

- `componentstatus`: Adds new componentstatus module that will soon replace status content in component. (#10730)
- `connector/connectorprofiles`: Allow handling profiles in connector. (#10703)
- `exporter/exporterprofiles`: Allow handling profiles in exporter. (#10702)
- `processor/processorprofiles`: Allow handling profiles in processor. (#10691)
- `receiver/receiverprofiles`: Allow handling profiles in receiver. (#10690)

### 💡 Enhancements 💡

- `confmap`: Check that providers have a correct scheme when building a confmap.Resolver. (#10786)
- `confighttp`: Add `NewDefaultCORSConfig` function to initialize the default `confighttp.CORSConfig` (#9655)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.106.1

## End User Changelog

## v0.106.1

### 🧰 Bug fixes 🧰

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

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.106.1

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.106.0

## End User Changelog

## 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)

## Go API Changelog


## v0.106.0

### 🛑 Breaking changes 🛑

- `configauth`: removing deprecated methods GetServerAuthenticatorContext and GetClientAuthenticatorContext (#9808)
- `connector,exporter,receiver,extension,processor`: Remove deprecated funcs/structs (#10423)
  Remove the following funcs & structs:
  - connector.CreateSettings -> connector.Settings
  - connectortest.NewNopCreateSettings -> connectortest.NewNopSettings
  - exporter.CreateSettings -> exporter.Settings
  - exportertest.NewNopCreateSettings -> exportertest.NewNopSettings
  - extension.CreateSettings -> extension.Settings
  - extensiontest.NewNopCreateSettings -> extensiontest.NewNopSettings
  - processor.CreateSettings -> processor.Settings
  - processortest.NewNopCreateSettings -> processortest.NewNopSettings
  - receiver.CreateSettings -> receiver.Settings
  - receivertest.NewNopCreateSettings -> receivertest.NewNopSettings
  
- `component/componenttest`: Add optional ...attribute.KeyValue argument to TestTelemetry.CheckExporterMetricGauge. (#10593)
- `confighttp`: Auth data type signature has changed (#4806)
  As part of the linked PR, the `auth` attribute was moved from `configauth.Authentication` 
  to a new `AuthConfig`, which contains a `configauth.Authentication`. For end-users, this
  is a non-breaking change. For users of the API, create a new AuthConfig using the
  `configauth.Authentication` instance that was being used before.
  
- `mdatagen`: Remove WithAttributes option from the telemetry builder constructor. (#10608)
  Attribute sets for async instruments now can be set as options to callback setters and async instruments initializers.
  This allows each async instrument to have its own attribute set.
  
- `service/extensions`: Adds `Options` to `extensions.New`. (#10728)
  This is only a breaking change if you are depending on `extensions.New`'s signature. Calls to `extensions.New` are not broken.

### 🚩 Deprecations 🚩

- `component`: Deprecates Host.GetFactory. (#10709)

### 🚀 New components 🚀

- `component/componentprofiles`: Add componentprofiles module. (#10525)

### 💡 Enhancements 💡

- `exporter, processor, receiver`: Document factory functions. (#9323)
- `component`: Document status enums and New constructors (#9822)
- `confighttp, configgrpc`: Remove the experimental comment on `IncludeMetadata` in confighttp and configgrpc (#9381)
- `confighttp`: Add `confighttp.NewDefaultServerConfig()` to instantiate the default HTTP server configuration (#9655)
- `consumer/consumertest`: Allow testing profiles with consumertest. (#10692)

### 🧰 Bug fixes 🧰

- `confmap`: Fix wrong expansion of environment variables escaped with `$$`, e.g. `$${ENV_VAR}` and `$$ENV_VAR`. (#10713)
  This change fixes the issue where environment variables escaped with $$ were expanded. 
  The collector now converts `$${ENV_VAR}` to `${ENV_VAR}` and `$$ENV_VAR` to `$ENV_VAR` without further expansion.

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.106.0

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.105.0

## End User Changelog

## 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](https://github.com/open-telemetry/opentelemetry-collector/issues/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)

## Go API Changelog

## v1.12.0/v0.105.0

### 🛑 Breaking changes 🛑

- `otelcol`: Obtain the Collector's effective config from otelcol.Config (#10139)
  `otelcol.Collector` will now marshal `confmap.Conf` objects from `otelcol.Config` itself.
- `otelcoltest`: Remove deprecated methods `LoadConfigWithSettings` and `LoadConfigAndValidateWithSettings` (#10512)

### 🚩 Deprecations 🚩

- `configauth`: Deprecated `Authentication.GetClientAuthenticatorContext` and `Authentication.GetServerAuthenticatorContext` (#10578)
- `otelcol`: Deprecate `otelcol.ConfmapProvider` (#10139)
  `otelcol.Collector` will now marshal `confmap.Conf` objects from `otelcol.Config` itself.
- `otelcol`: Deprecate `(*otelcol.ConfigProvider).GetConfmap` (#10139)
  Call `(*confmap.Conf).Marshal(*otelcol.Config)` to get the Collector's configuration.
- `exporterhelper`: Deprecate the obsreport API in the exporterhelper package. (#10592)

### 🚀 New components 🚀

- `consumer/consumerprofiles`: Allow handling profiles in consumer. (#10464)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.105.0

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.104.0


:warning: **This release includes 2 very important breaking changes.**
1. The `otlpreceiver` now uses `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 `$FOO` is no longer supported by default. If you depend on this syntax, disable the `confmap.unifyEnvVarExpansion` feature gate, but know that the feature will be removed in the future in favor of `${env:FOO}`.


## End User Changelog

### 🛑 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)

## Go API Changelog

### 🛑 Breaking changes 🛑

- `otelcol`: The `otelcol.NewCommand` now requires at least one provider be set. (#10436)
- `component/componenttest`: Added additional "inserted" count to `TestTelemetry.CheckProcessor*` methods. (#10353)

### 🚩 Deprecations 🚩

- `otelcoltest`: Deprecates `LoadConfigWithSettings` and `LoadConfigAndValidateWithSettings`.  Use `LoadConfig` and `LoadConfigAndValidate` instead. (#10417)
- `otelcol`: The `otelcol.NewCommandMustSetProvider` is deprecated. Use `otelcol.NewCommand` instead. (#10436)

### 🚀 New components 🚀

- `otelcoltest`: Split off go.opentelemetry.io/collector/otelcol/otelcoltest into its own module (#10417)

### 💡 Enhancements 💡

- `pdata/pprofile`: Add pprofile wrapper to convert proto into pprofile. (#10401)
- `pdata/testdata`: Add pdata testdata for profiles. (#10401)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.104.0

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.103.0

## End User Changelog


### 🛑 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 [https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/confighttp/README.md#server-configuration](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)

## Go API Changelog

### 🛑 Breaking changes 🛑

- `component`: Remove deprecated `component.UnmarshalConfig` (#7102)
- `confighttp`: Use `confighttp.ServerConfig` as part of zpagesextension.Config. Previously the extension used `confignet.TCPAddrConfig` (#9368)

### 🚩 Deprecations 🚩

- `connector`: Deprecate CreateSettings and NewNopCreateSettings (#9428)
  The following methods are being renamed:
  - connector.CreateSettings -> connector.Settings
  - connector.NewNopCreateSettings -> connector.NewNopSettings
  
- `exporter`: Deprecate CreateSettings and NewNopCreateSettings (#9428)
  The following methods are being renamed:
  - exporter.CreateSettings -> exporter.Settings
  - exporter.NewNopCreateSettings -> exporter.NewNopSettings
  
- `extension`: Deprecate CreateSettings and NewNopCreateSettings (#9428)
  The following methods are being renamed:
  - extension.CreateSettings -> extension.Settings
  - extension.NewNopCreateSettings -> extension.NewNopSettings
  
- `processor`: Deprecate CreateSettings and NewNopCreateSettings (#9428)
  The following methods are being renamed:
  - processor.CreateSettings -> processor.Settings
  - processor.NewNopCreateSettings -> processor.NewNopSettings
  
- `receiver`: Deprecate CreateSettings and NewNopCreateSettings (#9428)
  The following methods are being renamed:
  - receiver.CreateSettings -> receiver.Settings
  - receiver.NewNopCreateSettings -> receiver.NewNopSettings
  
- `configauth`: Deprecate `GetClientAuthenticator` and `GetServerAuthenticator`, use `GetClientAuthenticatorContext` and `GetServerAuthenticatorContext` instead. (#9808)
- `confighttp`: Deprecate `ClientConfig.CustomRoundTripper` (#8627)
  Set the `Transport` field on the `*http.Client` object returned from `(ClientConfig).ToClient` instead.
- `filter`: Deprecate the `filter.CombinedFilter` struct (#10348)
- `otelcol`: Deprecate `otelcol.NewCommand`. Use `otelcol.NewCommandMustProviderSettings` instead. (#10359)
- `otelcoltest`: Deprecate `LoadConfig` and `LoadConfigAndValidate`. Use `LoadConfigWithSettings` and `LoadConfigAndValidateWithSettings` instead (#10359)

### 💡 Enhancements 💡

- `confmap`: Adds `confmap.Retrieved.AsString` method that returns the configuration value as a string (#9532)
- `confmap`: Adds `confmap.NewRetrievedFromYAML` helper to create `confmap.Retrieved` values from YAML bytes (#9532)

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.103.1

### Images and binaries here: https://github.com/open-telemetry/opentelemetry-collector-releases/releases/tag/v0.102.1

### This release addresses CVE-2024-36129 ([GHSA-c74f-6mfw-mm4v](https://github.com/open-telemetry/opentelemetry-collector/security/advisories/GHSA-c74f-6mfw-mm4v)) fully.

## End User Changelog

### 🧰 Bug fixes 🧰

- `configrpc`: Use own compressors for zstd (#10323)
   Before this change, the zstd compressor we used didn't respect the max message size. This addresses CVE-2024-36129 (GHSA-c74f-6mfw-mm4v) on `configgrpc`.