chore: prepare next release

[otelbot-js]

Stable SDK (./CHANGELOG.md)

2.10.0

🚀 Features

• feat(sdk-logs): implement log processor metrics #6554 @anuraaga
• feat(otlp-exporter): implement exporter metrics #6480 @anuraaga
• feat(propagator-jaeger): Notice: The @opentelemetry/propagator-jaeger package will be removed in SDK 3.x, planned for approximately September 2026. @pichlermarc
  • The Jaeger propagator has been deprecated by the OpenTelemetry specification in favor of W3CTraceContextPropagator. This package will be removed in a future release.

🐛 Bug Fixes

• fix(sdk-trace): reject SimpleSpanProcessor.forceFlush() when a pending export fails #6771 @LarryHu0217
• fix(sdk-trace): include trace IDs at the ratio 1 upper bound in TraceIdRatioBasedSampler #6890 @LarryHu0217

🏠 Internal

• chore: build on Node 26 in CI #6887 @overbalance
• chore: bump to typescript@5.2.2 @pichlermarc

Experimental (./experimental/CHANGELOG.md)

0.221.0

💥 Breaking Changes

• feat(sdk-logs)!: configure the force flush timeout per call #6931 @LarryHu0217
  • (user-facing): LoggerProviderOptions.forceFlushTimeoutMillis has been removed; pass timeoutMillis to LoggerProvider.forceFlush() instead.
• feat(instrumentation-http)!: emit only stable HTTP semantic conventions. The OTEL_SEMCONV_STABILITY_OPT_IN environment variable no longer changes HTTP attribute or metric emission — old (v1.7.0) and duplicate (http/http/dup) semconv outputs have been removed. #6819 @maryliag
• feat(instrumentation-fetch)!: emit only stable HTTP semantic conventions. The semconvStabilityOptIn instrumentation config option has been removed; old (v1.7.0) and duplicate semconv outputs are no longer emitted. #6819 @maryliag
• feat(instrumentation-xml-http-request)!: emit only stable HTTP semantic conventions. The semconvStabilityOptIn instrumentation config option has been removed; old (v1.7.0) and duplicate semconv outputs are no longer emitted. #6819 @maryliag
• feat(instrumentation-grpc)!: emit only stable network semantic conventions. The OTEL_SEMCONV_STABILITY_OPT_IN environment variable no longer changes attribute emission — net.peer.name and net.peer.port (old) are no longer set; only server.address and server.port (stable). #6819 @maryliag

🚀 Features

• feat(sdk-logs): allow modifying ReadWriteLogRecord properties (including hrTime, hrTimeObserved, and spanContext) in accordance with the OpenTelemetry Logs specification #6923 @Babul422
• feat(sdk-node): emit a deprecation warning when the JaegerPropagator is selected via OTEL_PROPAGATORS or declarative config; use tracecontext instead. @pichlermarc
• feat(instrumentation-http): set error.type to status code in metrics for error requests. #6919 @raphael-theriault-swi

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.08%. Comparing base (3787896) to head (36b8705).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6942   +/-   ##
=======================================
  Coverage   95.08%   95.08%           
=======================================
  Files         409      409           
  Lines       14258    14258           
  Branches     3270     3270           
=======================================
  Hits        13557    13557           
  Misses        701      701           

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[opentelemetry-pr-dashboard]

Pull request dashboard status

Status last refreshed: 2026-07-21 19:20:24 UTC.

• Status: Merged.

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