API

Incubator

• Delete GlobalConfigProvider in favor of access via ExtendedOpenTelemetry (#7914)
• Add DeclarativeConfigProperties#get method (#7923)
• Update ConfigProvider#getInstrumentationConfig response to be non-null (#7954)
• Add declarative config utility methods for common operations (#7927)

SDK

Traces

• Implement SDK metrics for trace (#7895, #7930)
• Emit warning when TraceIdRatioBasedSampler is used as child sampler (#7937)

Logs

• Implement SDK metrics for logs (#7931)

Exporters

• Prom exporter update (#7934)

Extensions

• Declarative config: update to opentelemetry-configuration 1.0.0-rc.3 (#7861)
• Declarative config: update jaeger remote sampler to require endpoint, initial_sampler (#7943)
• Declarative config: add support for view unit (#7942)
• Declarative config: add support for new logger config minimum_severity and trace_based properties (#7940)
• Declarative config: add support for composable parent threshold sampler (#7941)
• Declarative config: improve pattern for validating and loading SDK extension plugins (#7947)

Project tooling

• Use develocity build cache in PRs and local builds (#7906)
• Configure japicmp classpath to avoid false positives (#7945)

🙇 Thank you

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

@anuraaga @breedx-splk @Gosling-dude @jack-berg @jkwatson @JonasKunz @SylvainJuge @trask @zeitlinger