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# Go API Changelog

This changelog includes only developer-facing changes.
If you are looking for user-facing changes, check out [CHANGELOG.md](./CHANGELOG.md).

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## 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.
  

## 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)

## v1.11.0/v0.104.0

### 🛑 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)

## v1.10.0/v0.103.0

### 🛑 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)

## v0.102.1

No API-only changes on this release. **This release addresses [GHSA-c74f-6mfw-mm4v](https://github.com/open-telemetry/opentelemetry-collector/security/advisories/GHSA-c74f-6mfw-mm4v) for `configgrpc`.**

## v1.9.0/v0.102.0

**This release addresses [GHSA-c74f-6mfw-mm4v](https://github.com/open-telemetry/opentelemetry-collector/security/advisories/GHSA-c74f-6mfw-mm4v) for `confighttp`.**

### 🛑 Breaking changes 🛑

- `otelcol`: Remove deprecated `ConfigProvider` field from `CollectorSettings` (#10281)
- `exporterhelper`: remove deprecated RequestMarshaler & RequestUnmarshaler types (#10283)
- `service`: remove deprecated Telemetry struct and New func (#10285)
- `configtls`: remove deprecated LoadTLSConfigContext funcs (#10283)

### 🚩 Deprecations 🚩

- `component`: Deprecate `component.UnmarshalConfig`, use `(*confmap.Conf).Unmarshal(&intoCfg)` instead. (#7102)
- `service/telemetry`: Deprecate telemetry.New in favor of telemetry.NewFactory (#4970)

### 💡 Enhancements 💡

- `confmap`: Allow setting a default Provider on a Resolver to use when `${}` syntax is used without a scheme (#10182)
- `pdata`: Introduce string and int64 slices to pcommon (#10148)
- `pdata`: Introduce generated experimental pdata for profiling signal. (#10195)
- `confmap`: Remove top level condition when considering struct as Unmarshalers (#7101)

### 🧰 Bug fixes 🧰

- `otelcol`: Update validate command to use the new configuration options (#10203)

## v1.8.0/v0.101.0

### 🛑 Breaking changes 🛑

- `confighttp`: Removes deprecated functions `ToClientContext`, `ToListenerContext`, and `ToServerContext`. (#10138)
- `confmap`: Deprecate `NewWithSettings` for all Providers and `New` for all Converters (#10134)
  Use `NewFactory` instead for all affected modules.
- `confmap`: Remove deprecated `Providers` and `Converters` from `confmap.ResolverSettings` (#10173)
  Use `ProviderSettings` and `ConverterSettings` instead.

### 🧰 Bug fixes 🧰

- `otelcol`: Add explicit mapstructure tags to main configuration struct (#10152)
- `confmap`: Support string-like types as map keys when marshaling (#10137)

## v1.7.0/v0.100.0

### 💡 Enhancements 💡

- `configgrpc`: Adds `NewDefault*` functions for all the config structs. (#9654)
- `exporterqueue`: Expose ErrQueueIsFull so upstream components can retry or apply backpressure. (#10070)

### 🧰 Bug fixes 🧰

- `mdatagen`: Call connectors with routers to be the same as the service graph (#10079)

## v1.6.0/v0.99.0

### 🛑 Breaking changes 🛑

- `component`: Removed deprecated function `GetExporters` from `component.Host` interface (#9987)

### 🚩 Deprecations 🚩

- `confighttp`: deprecate ToClientContext, ToServerContext, ToListenerContext, replaced by ToClient, ToServer, ToListener (#9807)
- `configtls`: Deprecates `ClientConfig.LoadTLSConfigContext` and `ServerConfig.LoadTLSConfigContext`, use `ClientConfig.LoadTLSConfig` and `ServerConfig.LoadTLSConfig` instead. (#9945)
- `confmap`: Deprecate the `Providers` and `Converters` fields in `confmap.ResolverSettings` (#9516)
Use the `ProviderFactories` and `ConverterFactories` fields instead.

### 💡 Enhancements 💡

- `configauth`: Adds `NewDefault*` functions for all the config structs. (#9821)
- `configtls`: Adds `NewDefault*` functions for all the config structs. (#9658)
- `pmetric`: Support metric.metadata in pdata/pmetric (#10006)

## v1.5.0/v0.98.0

### 🛑 Breaking changes 🛑

- `component`: Restricts maximum length for `component.Type` to 63 characters. (#9872)
- `configgrpc`: Remove deprecated `ToServerContext`, use `ToServer` instead. (#9836)
- `configgrpc`: Remove deprecated `SanitizedEndpoint`. (#9836)
- `configtls`: Remove Deprecated `TLSSetting`, `TLSClientSetting`, and `TLSServerSetting`. (#9786)
- `configtls`: Rename `TLSSetting` to `Config` on `ClientConfig` and `ServerConfig`. (#9786)

### 🚩 Deprecations 🚩

- `confighttp`: Deprecate `ToClient`,`ToListener`and `ToServer` use `ToClientContext`,`ToListenerContext` and `ToServerContext`instead. (#9807)
- `configtls`: Deprecate `ClientConfig.LoadTLSConfig` and `ServerConfig.LoadTLSConfig`, use `ClientConfig.LoadTLSConfigContext` and `ServerConfig.LoadTLSConfigContext` instead. (#9811)

### 💡 Enhancements 💡

- Introduce new module for generating pdata: pdata/testdata (#9886)
- `exporterhelper`: Make the `WithBatcher` option available for regular exporter helpers based on OTLP data type. (#8122)
  Now, `WithBatcher` can be used with both regular exporter helper (e.g. NewTracesExporter) and the request-based exporter 
  helper (e.g. NewTracesRequestExporter). The request-based exporter helpers require `WithRequestBatchFuncs` option 
  providing batching functions. 
  
- `confmap`: Creates a logger in the confmap.ProviderSettings and uses it to log when there is a missing or blank environment variable referenced in config. For now the noop logger is used everywhere except tests. (#5615)

## v1.4.0/v0.97.0

### 🛑 Breaking changes 🛑

- `configgrpc`: Remove deprecated `ToServer` function. (#9787)
- `confignet`: Change `Transport` field from `string` to `TransportType` (#9385)
- `component`: Change underlying type of `component.Type` to an opaque struct. (#9208)
- `obsreport`: Remove deprecated obsreport/obsreporttest package. (#9724)
- `component`: Remove deprecated error `ErrNilNextConsumer` (#9322)
- `connector`: Remove `LogsRouter`, `MetricsRouter` and `TracesRouter`. Use `LogsRouterAndConsumer`, `MetricsRouterAndConsumer`, `TracesRouterAndConsumer` respectively instead. (#9095)
- `receiver`: Remove deprecated struct `ScraperControllerSettings` and function `NewDefaultScraperControllerSettings` (#6767)
- `confmap`: Remove deprecated `provider.New` methods, use `NewWithSettings` moving forward. (#9443)

### 🚩 Deprecations 🚩

- `configgrpc`: Deprecated `ToServerContext`, use `ToServer` instead. (#9787)
- `configgrpc`: Deprecate `SanitizedEndpoint` (#9788)

### 💡 Enhancements 💡

- `exporterhelper`: Add experimental batching capabilities to the exporter helper (#8122)
- `confignet`: Adds `NewDefault*` functions for all the config structs. (#9656)
- `configtls`: Validates TLS min_version and max_version (#9475)
  Introduces `Validate()` method in TLSSetting.
- `exporterhelper`: Invalid exporterhelper options now make the exporter creation error out instead of panicking. (#9717)
- `components`: Give NoOp components a unique name (#9637)

## v1.3.0/v0.96.0

### 🚩 Deprecations 🚩

- `configgrpc`: Deprecates `ToServer`.  Use `ToServerContext` instead. (#9624)
- `component`: deprecate component.ErrNilNextConsumer (#9526)
- `configtls`: Rename TLSClientSetting, TLSServerSetting, and TLSSetting based on the naming convention used in other config packages. (#9474)

### 💡 Enhancements 💡

- `receivertest`: add support for metrics in contract checker (#9551)

## v1.2.0/v0.95.0

### 🛑 Breaking changes 🛑

- `all`: Bump minimum go version to go 1.21 (#9507)
- `service/telemetry`: Delete generated_config types, use go.opentelemetry.io/contrib/config types instead (#9546)
- `configcompression`: Remove deprecated `configcompression` types, constants and methods. (#9388)
- `component`: Remove `host.ReportFatalError` (#6344)
- `configgrpc`: Remove deprecated `configgrpc.ServerConfig.ToListener` (#9481)
- `confmap`: Remove deprecated `confmap.WithErrorUnused` (#9484)

### 🚩 Deprecations 🚩

- `confignet`: Deprecate `confignet.NetAddr` and `confignet.TCPAddr` in favor of `confignet.AddrConfig` and `confignet.TCPAddrConfig`. (#9509)
- `config/configgrpc`: Deprecate `configgrpc.ClientConfig.SanitizedEndpoint`, `configgrpc.ServerConfig.ToListener` and `configgrpc.ServerConfig.ToListenerContext` (#9481, #9482)
- `scraperhelper`: Deprecate ScraperControllerSettings, use ControllerConfig instead (#6767)

## v1.1.0/v0.94.0

### 🛑 Breaking changes 🛑

- `confignet`: Remove deprecated `DialContext` and `ListenContext` functions (#9363)
- `confmap/converter/expandconverter`: Add `confmap.ConverterSettings` argument to experimental `expandconverter.New` function. (#5615, #9162)
  - The `confmap.ConverterSettings` struct currently has no fields. It will be used to pass a logger.
  
- `component`: Remove deprecated funcs and types (#9283)
- `otlpexporter`: Config struct is moving from embedding the deprecated GRPCClientSettings struct to using ClientConfig instead. (#6767)
- `otlphttpexporter`: otlphttpexporter.Config embeds the struct confighttp.ClientConfig instead of confighttp.HTTPClientSettings (#6767)
- `otlpreceiver`: HTTPConfig struct is moving from embedding the deprecated ServerSettings struct to using HTTPServerConfig instead. (#6767)
- `component`: Validate component.Type at creation and unmarshaling time. (#9208)
  - A component.Type must start with an ASCII alphabetic character and can only contain ASCII alphanumeric characters and '_'.
  

### 🚩 Deprecations 🚩

- `configcompressions`: Deprecate `IsCompressed`.  Use `CompressionType.IsCompressed instead` instead. (#9435)
- `configcompression`: Deprecate `CompressionType`, use `Type` instead. (#9416)
- `confighttp`: Deprecate CORSSettings, use CORSConfig instead (#6767)
- `configgrpc`: Deprecate `ToListener` function in favor of `ToListenerContext` (#9389)
- `configgrpc`: Deprecate GRPCServerSettings, use ServerConfig instead (#6767)
- `confighttp`: Deprecate HTTPClientSettings, use ClientConfig instead (#6767)
- `confighttp`: Deprecate HTTPServerSettings, use ServerConfig instead (#6767)
- `confmap/provider`: Deprecate <provider>.New in favor of <provider>.NewWithSettings for all core providers (#5615, #9162)
  - NewWithSettings now takes an empty confmap.ProviderSettings struct. This will be used to pass a logger in the future.
  

### 💡 Enhancements 💡

- `exporter/exporterhelper`: Add API for enabling queue in the new exporter helpers. (#7874)
  The following experimental API is introduced in exporter package:
    - `exporterhelper.WithRequestQueue`: a new exporter helper option for using a queue.
    - `exporterqueue.Queue`: an interface for queue implementations.
    - `exporterqueue.Factory`: a queue factory interface, implementations of this interface are intended to be used with WithRequestQueue option.
    - `exporterqueue.Settings`: queue factory settings.
    - `exporterqueue.Config`: common configuration for queue implementations.
    - `exporterqueue.NewDefaultConfig`: a function for creating a default queue configuration.
    - `exporterqueue.NewMemoryQueueFactory`: a new factory for creating a memory queue.
    - `exporterqueue.NewPersistentQueueFactory: a factory for creating a persistent queue.
  
- `featuregate`: Add the `featuregate.ErrAlreadyRegistered` error, which is returned by `featuregate.Registry`'s `Register` when adding a feature gate that is already registered. (#8622)
  Use `errors.Is` to check for this error.
  

## v0.93.0

### 🛑 Breaking changes 🛑

- `bug_fix`: Implement `encoding.BinaryMarshaler` interface to prevent `configopaque` -> `[]byte` -> `string` conversions from leaking the value (#9279)
- `configopaque`: configopaque.String implements `fmt.Stringer` and `fmt.GoStringer`, outputting [REDACTED] when formatted with the %s, %q or %#v verbs` (#9213)
  This may break applications that rely on the previous behavior of opaque strings with `fmt.Sprintf` to e.g. build URLs or headers.
  Explicitly cast the opaque string to a string before using it in `fmt.Sprintf` to restore the previous behavior.
  
- `all`: Remove obsolete "// +build" directives (#9304)
- `connectortest`: Remove deprecated connectortest router helpers. (#9278)

### 🚩 Deprecations 🚩

- `obsreporttest`: deprecate test funcs/structs (#8492)
  The following methods/structs have been moved from obsreporttest to componenttest:
  - obsreporttest.TestTelemetry -> componenttest.TestTelemetry
  - obsreporttest.SetupTelemetry -> componenttest.SetupTelemetry
  - obsreporttest.CheckScraperMetrics -> TestTelemetry.CheckScraperMetrics
  - obserporttest.TestTelemetry.TelemetrySettings -> componenttest.TestTelemetry.TelemetrySettings()
  
- `confignet`: Deprecates `DialContext` and `ListenContext` functions. Use `Dial` and `Listen` instead. (#9258)
  Unlike the previous `Dial` and `Listen` functions, the new `Dial` and `Listen` functions take a `context.Context` like `DialContext` and `ListenContext`.

## v1.0.1/v0.92.0

### 🛑 Breaking changes 🛑

- `otlpexporter`: Change Config members names to use Config suffix. (#9091)
- `component`: Remove deprecated unused TelemetrySettingsBase (#9145)

### 🚩 Deprecations 🚩

- `confignet`: Deprecates the `Dial` and `Listen` functions in favor of `DialContext` and `ListenContext`. (#9163)
- `component`: Deprecate unnecessary type StatusFunc (#9146)

## v0.91.0

## v1.0.0/v0.90.0

### 🛑 Breaking changes 🛑

- `exporterhelper`: Replace converter interface with function in the new experimental exporter helper. (#8122)
- `featuregate`: Remove deprecate function `featuregate.NewFlag` (#8727)
  Use `featuregate.Registry`'s `RegisterFlags` method instead.

### 🚩 Deprecations 🚩

- `telemetry`: deprecate jsonschema generated types (#15009)

### 💡 Enhancements 💡

- `pdata`: Add ZeroThreshold field to exponentialHistogramDataPoint in pmetric package. (#8802)

## v1.0.0-rcv0018/v0.89.0

### 🛑 Breaking changes 🛑

- `otelcol`: CollectorSettings.Factories now expects: `func() (Factories, error)` (#8478)
- `exporter/exporterhelper`: The experimental Request API is updated. (#7874)
  - `Request` interface now includes ItemsCount() method.
  - `RequestItemsCounter` is removed.
  - The following interfaces are added:
    - Added an optional interface for handling errors that occur during request processing `RequestErrorHandler`.
    - Added a function to unmarshal bytes into a Request `RequestUnmarshaler`.
    - Added a function to marshal a Request into bytes `RequestMarshaler`
  

### 🚩 Deprecations 🚩

- `featuregate`: Deprecate `featuregate.NewFlag` in favor of `featuregate.Registry`'s `RegisterFlags` method (#8727)

### 💡 Enhancements 💡

- `featuregate`: Add validation for feature gates ID, URL and versions. (#8766)
  Feature gates IDs are now explicitly restricted to ASCII alphanumerics and dots.
  

## v1.0.0-rcv0017/v0.88.0

### 💡 Enhancements 💡

- `pdata`: Add IsReadOnly() method to p[metrics|logs|traces].[Metrics|Logs|Spans] pdata structs allowing to check if the struct is read-only. (#6794)

## v1.0.0-rcv0016/v0.87.0

### 💡 Enhancements 💡

- `pdata`: Introduce API to control pdata mutability (#6794)
  This change introduces new API pdata methods to control the mutability:
  - p[metric|trace|log].[Metrics|Traces|Logs].MarkReadOnly() - marks the pdata as read-only. Any subsequent
    mutations will result in a panic.
  - p[metric|trace|log].[Metrics|Traces|Logs].IsReadOnly() - returns true if the pdata is marked as read-only.
  Currently, all the data is kept mutable. This API will be used by fanout consumer in the following releases. 

### 🛑 Breaking changes 🛑

- `obsreport`: remove methods/structs deprecated in previous release. (#8492)
- `extension`: remove deprecated Configs and Factories (#8631)

## v1.0.0-rcv0015/v0.86.0

### 🛑 Breaking changes 🛑

- `service`: remove deprecated service.PipelineConfig (#8485)

### 🚩 Deprecations 🚩

- `obsreporttest`: deprecate To*CreateSettings funcs in obsreporttest (#8492)
  The following TestTelemetry methods have been deprecated. Use structs instead:
  -  ToExporterCreateSettings -> exporter.CreateSettings
  -  ToProcessorCreateSettings -> processor.CreateSettings
  -  ToReceiverCreateSettings -> receiver.CreateSettings
  
- `obsreport`: Deprecating `obsreport.Exporter`, `obsreport.ExporterSettings`, `obsreport.NewExporter` (#8492)
  These deprecated methods/structs have been moved to exporterhelper:
  - `obsreport.Exporter` -> `exporterhelper.ObsReport`
  - `obsreport.ExporterSettings` -> `exporterhelper.ObsReportSettings`
  - `obsreport.NewExporter` -> `exporterhelper.NewObsReport`
  
- `obsreport`: Deprecating `obsreport.BuildProcessorCustomMetricName`, `obsreport.Processor`, `obsreport.ProcessorSettings`, `obsreport.NewProcessor` (#8492)
  These deprecated methods/structs have been moved to processorhelper:
  - `obsreport.BuildProcessorCustomMetricName` -> `processorhelper.BuildCustomMetricName`
  - `obsreport.Processor` -> `processorhelper.ObsReport`
  - `obsreport.ProcessorSettings` -> `processorhelper.ObsReportSettings`
  - `obsreport.NewProcessor` -> `processorhelper.NewObsReport`
  
- `obsreport`: Deprecating obsreport scraper and receiver API (#8492)
  These deprecated methods/structs have been moved to receiverhelper and scraperhelper:
  - `obsreport.Receiver` -> `receiverhelper.ObsReport`
  - `obsreport.ReceiverSettings` -> `receiverhelper.ObsReportSettings`
  - `obsreport.NewReceiver` -> `receiverhelper.NewObsReport`
  - `obsreport.Scraper` -> `scraperhelper.ObsReport`
  - `obsreport.ScraperSettings` -> `scraperhelper.ObsReportSettings`
  - `obsreport.NewScraper` -> `scraperhelper.NewObsReport`
  

### 💡 Enhancements 💡

- `otelcol`: Splitting otelcol into its own module. (#7924)
- `service`: Split service into its own module (#7923)

## v0.85.0

## v0.84.0

### 💡 Enhancements 💡

- `exporter/exporterhelper`: Introduce a new exporter helper that operates over client-provided requests instead of pdata (#7874)
  The following experimental API is introduced in exporter/exporterhelper package:
    - `NewLogsRequestExporter`: a new exporter helper for logs.
    - `NewMetricsRequestExporter`: a new exporter helper for metrics.
    - `NewTracesRequestExporter`: a new exporter helper for traces.
    - `Request`: an interface for client-defined requests.
    - `RequestItemsCounter`: an optional interface for counting the number of items in a Request.
    - `LogsConverter`: an interface for converting plog.Logs to Request.
    - `MetricsConverter`: an interface for converting pmetric.Metrics to Request.
    - `TracesConverter`: an interface for converting ptrace.Traces to Request.
    All the new APIs are intended to be used by exporters that need to operate over client-provided requests instead of pdata.
  
- `otlpreceiver`: Export HTTPConfig as part of the API for creating the otlpreceiver configuration. (#8175)
  Changes signature of receiver/otlpreceiver/config.go type httpServerSettings to HTTPConfig.

## v0.83.0

### 🛑 Breaking changes 🛑

- `all`: Remove go 1.19 support, bump minimum to go 1.20 and add testing for 1.21 (#8207)

### 💡 Enhancements 💡

- `changelog`: Generate separate changelogs for end users and package consumers (#8153)
