API

Baggage

• Fix guard against ArrayIndexOutOfBoundsException in BaggageCodec (#7239)

SDK

Metrics

• Fix MetricData.getDoubleSumData() ClassCastException with custom implementations (#7597)

Exporters

• Fix HttpExporterBuilder.copy() and GrpcExporterBuilder.copy() to preserve component loader (#7596)

Extensions

• Autoconfigure: Remove support for old EnvironmentResourceProvider package name (#7622)
• Declarative config: Add DeclarativeConfigurationProvider SPI (#7472)
• Declarative config: Pass meter provider to avoid using the global OpenTelemetry instance (#7475)

Project tooling

• Update to Gradle v9 (#7590)

🙇 Thank you

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

@anuraaga @breedx-splk @chengchen @halasz-csaba @jack-berg @jaydeluca @jkwatson @laurit @opentelemetrybot @rlacksgus97 @robsunday @trask @xiangtianyu @zeitlinger