Release v1.39.0

[MrAlias]

Overview

Added

• ParseYAML in go.opentelemetry.io/contrib/otelconf now supports environment variables substitution in the format ${[env:]VAR_NAME[:-defaultvalue]}. (otelconf: add env var substitution in ParseYAML #6215)
• Add the http.route metric attribute to go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux. (otelmux: Adding http.route attribute to metrics #7966)
• Support db.client.operation.duration metric for go.opentelemetry.io/contrib/instrumentation/go.mongodb.org/mongo-driver/v2/mongo/otelmongo. (support mongo-driver's db metrics #7983)
• Add a WithSpanNameFormatter option to go.opentelemetry.io/contrib/instrumentation/go.mongodb.org/mongo-driver/v2/mongo/otelmongo. (feat(mongo): add SpanNameResolver for customizable span naming #7986)
• WithOnError option for otelecho middleware in go.opentelemetry.io/contrib/instrumentation/github.com/labstack/echo/otelecho to specify the behavior when an error occurs. (fix(otelecho): add config option to skip global error handler call #8025)
• Updated go.opentelemetry.io/contrib/otelconf to include the v1.0.0-rc2 release candidate of schema which includes backwards incompatible changes. (otelconf: add support for 1.0.0 release candidate #8026)
• Introduce v1.0.0-rc.2 model in go.opentelemetry.io/contrib/otelconf. (otelconf: introduce support for v1.0.0-rc.2 #8031)
• Add unmarshaling and validation for CardinalityLimits and SpanLimits to v1.0.0 model in go.opentelemetry.io/contrib/otelconf. (otelconf: add unmarshaling and validation for span & cardinality limits #8043)
• Add unmarshaling and validation for BatchLogRecordProcessor, BatchSpanProcessor, and PeriodicMetricReader to v1.0.0 model in go.opentelemetry.io/contrib/otelconf. ( otelconf: add unmarshaling / validation for batch processors  #8049)
• Add unmarshaling and validation for TextMapPropagator to v1.0.0 model in go.opentelemetry.io/contrib/otelconf. (otelconf: unmarshal TextMapPropagator #8052)
• Add jaeger.sampler.type/jaeger.sampler.param attributes for adaptive sampling support and option WithAttributesDisabled in go.opentelemetry.io/contrib/samplers/jaegerremote. (feat: add sampling attributes for jaeger remote sampler #8073)
• Add support for OTEL_EXPERIMENTAL_CONFIG_FILE via the NewSDK function in go.opentelemetry.io/contrib/otelconf (otelconf: add support for OTEL_EXPERIMENTAL_CONFIG_FILE #8106)
• Add unmarshaling and validation for OTLPHttpExporter, OTLPGrpcExporter, OTLPGrpcMetricExporter and OTLPHttpMetricExporter to v1.0.0 model in go.opentelemetry.io/contrib/otelconf. (otelconf: add unmarshalers for otlp exporters #8112)
• Add unmarshaling and validation for AttributeType, AttributeNameValue, SimpleSpanProcessor, SimpleLogRecordProcessor, ZipkinSpanExporter, NameStringValuePair, InstrumentType, ExperimentalPeerInstrumentationServiceMappingElem, ExporterDefaultHistogramAggregation, PullMetricReader to v1.0.0 model in go.opentelemetry.io/contrib/otelconf. (otelconf: add remaining unmarshaling code from initial PR #8127)
• Add support for container, host, process resource detectors in go.opentelemetry.io/contrib/otelconf. (otelconf: add support for parsing resource detectors #8180)

Changed

• Improve performance by reducing allocations in the gRPC stats handler in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc. (otelgrpc: optimize stats handler InPayload and OutPayload #8035)
• Export the ReadEvents and WriteEvents constants in go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp so they can be used in WithMessageEvents. (otelhttp: export Event type for WithMessageEvents #8153)
• Switched the default for OTEL_SEMCONV_STABILITY_OPT_IN to emit the v1.37.0 semantic conventions by default in go.opentelemetry.io/contrib/instrumentation/go.mongodb.org/mongo-driver/mongo/otelmongo. Use the environment variable OTEL_SEMCONV_STABILITY_OPT_IN to configure duplication with old semantic conventions if needed (i.e. OTEL_SEMCONV_STABILITY_OPT_IN="database/dup"). (otelmongo: default to stable semconv #8230)

Deprecated

• WithRouteTag in go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp is deprecated. The route is already added automatically for spans. For metrics, the alternative is to use the WithMetricAttributesFn option. (otelhttp: deprecate the WithRouteTag option #8117)
• WithPublicEndpoint in go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp is deprecated. Use WithPublicEndpointFn instead. (otelhttp: deprecate WithPublicEndpoint in favor of WithPublicEndpointFn (#8133) #8152)
• DefaultClient, Get, Head, Post, and PostForm in go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp are deprecated. Use a custom *http.Client with otelhttp.NewTransport(http.DefaultTransport) instead. (otelhttp: Deprecate DefaultClient #8140, Deprecate otelhttp's Get/Post/Head/PostForm methods #8201)

Removed

• Drop support for Go 1.23. (Remove support for Go 1.23 #7831)
• Remove deprecated go.opentelemetry.io/contrib/detectors/aws/ec2 module, please use go.opentelemetry.io/contrib/detectors/aws/ec2/v2 instead. (chore: remove deprecated EC2 detector #7841)
• Remove the deprecated Extract and Inject functions from go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc. (chore: remove the deprecated Inject and Extract from otelgrpc #7952)

[codecov]

Codecov Report

❌ Patch coverage is 94.44444% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.3%. Comparing base (14c6a7a) to head (b418799).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
processors/baggagecopy/log_processor.go	0.0%	2 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #8261   +/-   ##
=====================================
  Coverage   82.2%   82.3%           
=====================================
  Files        195     195           
  Lines      13796   13800    +4     
=====================================
+ Hits       11347   11359   +12     
+ Misses      2041    2033    -8     
  Partials     408     408           

Files with missing lines	Coverage Δ
detectors/aws/ecs/version.go	50.0% <100.0%> (ø)
detectors/aws/eks/version.go	50.0% <100.0%> (ø)
detectors/gcp/version.go	50.0% <100.0%> (ø)
exporters/autoexport/metrics.go	79.2% <100.0%> (+0.3%)	⬆️
...github.com/aws/aws-lambda-go/otellambda/version.go	100.0% <100.0%> (ø)
...on/github.com/aws/aws-sdk-go-v2/otelaws/version.go	100.0% <100.0%> (ø)
...hub.com/emicklei/go-restful/otelrestful/version.go	100.0% <100.0%> (ø)
...tation/github.com/gin-gonic/gin/otelgin/version.go	100.0% <100.0%> (ø)
...entation/github.com/gorilla/mux/otelmux/version.go	100.0% <100.0%> (ø)
...ation/github.com/labstack/echo/otelecho/version.go	100.0% <100.0%> (ø)
... and 18 more

... and 1 file with indirect coverage changes

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[Copilot]

Pull request overview

This PR updates the OpenTelemetry Contrib repository to version 1.39.0, bumping version numbers across all modules and updating dependencies to use OpenTelemetry v1.39.0. Beyond routine version updates, the PR includes several functional changes to improve code quality and fix issues.

Key Changes:

• Version bumps from 1.38.0 to 1.39.0 for stable modules, and corresponding increments for experimental modules
• Dependency updates to OpenTelemetry v1.39.0 and related packages
• Functional improvements in processors/minsev, processors/baggagecopy, and exporters/autoexport
• Addition of github.com/cespare/xxhash/v2 v2.3.0 as an indirect dependency across modules

Reviewed changes

Copilot reviewed 91 out of 147 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
versions.yaml	Updates module set versions: stable-v1 to v1.39.0, stable-v2 to v2.1.0, experimental modules to v0.64.0, v0.33.0, v0.19.0, v0.14.0, v0.12.0, and v0.11.0
version.go, zpages/version.go, tools/version.go, etc.	Version string updates to 1.39.0 or corresponding experimental versions
go.mod files	Updates OpenTelemetry dependencies from 1.38.0 to 1.39.0, adds xxhash/v2 v2.3.0
go.sum files	Updates checksums for new dependency versions
processors/minsev/*.go	Refactors LogProcessor to use wrapped field instead of filter, removes FilterProcessor interface dependency
processors/baggagecopy/log_processor*.go	Adds Enabled method implementation to satisfy Processor interface
exporters/autoexport/metrics*.go	Fixes Prometheus producer registration to avoid duplicates, improves test logging and assertions

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