API

Incubator

• Support ExtendedOpenTelemetry in GlobalOpenTelemetry (#7799)

SDK

• Changes to MeterConfig, LoggerConfig, TracerConfig are guaranteed to be eventually visible (#7706)

Metrics

• Stabilize ExemplarFilter (#7768)
• Type specific exemplar reservoirs (#7758)

Extensions

• SDK incubator: Add incubator ComposableRuleBasedSampler (#7787)
• SDK incubator: Add incubator ComposableAnnotatingSampler (#7804)
• SDK incubator: Rename ComposableTraceIdRatioBased to ComposableProbability (#7786)
• Declarative config: BREAKING Remove component provider generic type (#7606)
• Declarative config: Add declarative config support for ExemplarFilter (#7769)
• Declarative config: Fix a few declarative configuration bugs (#7807)

Project tooling

• Move to oracle bare metal benchmark runner (#7740)
• Enable Develocity build scans (#7776)
• Document GPG signing key (#7783)
• Update build to use java 21 (#7784)
• Sync repository-settings.md documentation (#7791)
• Fix gradle deprecation warning (#7780)
• Small alignments of workflows across the 6 Java repos (#7806)
• Implement min java version gradle tooling from instrumentation repo (#7801)

🙇 Thank you

This release was possible thanks to the following contributors who shared their brilliant ideas and awesome pull requests:

@anuraaga @breedx-splk @brunobat @jack-berg @jkwatson @laurit @robsunday @ThomasVitale @trask @yogurtearl @zeitlinger