This release targets the OpenTelemetry SDK 1.57.0.

Note that many artifacts have the -alpha suffix attached to their version number, reflecting that they are still alpha quality and will continue to have breaking changes. Please see the VERSIONING.md for more details.

⚠️ Breaking Changes

• ActiveMQ Classic JMX metrics: rename attributes and metrics to align with semantic conventions (see PR description for specifics) (#14996)
• Library instrumentation: remove previously deprecated methods from telemetry builders (#15324)
• Logback: captureArguments no longer captures message template, use captureTemplate (#15423)
• Play: disable controller spans by default, re-enable with otel.instrumentation.common.experimental.controller-telemetry.enabled=true (#15604)

🚫 Deprecations

• Library instrumentation: deprecate setSpanNameExtractor() and setStatusExtractor() in favor of setSpanNameExtractorCustomizer() and setStatusExtractorCustomizer() (#15529)

🌟 New javaagent instrumentation

• Apache ElasticJob (#14933)

🌟 New library instrumentation

• Apache Iceberg (#15114)
• Servlets (#15473)

📈 Enhancements

• Spring starter: add declarative config logging exporter (#14917)
• Failsafe: add support for RetryPolicy (#15255, #15537)
• GraphQL: add option to disable capturing query documents (#15384)
• JMX metrics: allow any classpath resource path in rules (#15413)
• Spring Boot actuator autoconfigure: support Spring Boot 4 (#15433)
• Spring JMS: support Spring Boot 4 (#15434)
• Spring starter: support Spring Boot 4 (#15459)
• Lettuce: support custom ClientResources (#15470)
• Lettuce: add reactor-core compatibility checker (#15472)
• Servlet: propagate context explicitly for async runnables (#15476)
• Servlet: always add trace_id and span_id attributes to requests (#15485)
• Pekko HTTP: separate route instrumentation from HTTP server instrumentation (#15499)
• MongoDB: emit versioned scope name (#15500)
• Spring WebFlux: support Spring Boot 4 (#15502, #15574)
• Spring WebMVC: support Spring Boot 4 (#15525)
• Spring Cloud Gateway: support Spring Boot 4 (#15540)
• Spring starter: add missing Kafka configuration options (#15592)
• OpenTelemetry API interop: support new GlobalOpenTelemetry methods introduced in 1.57 (#15620)

🛠️ Bug fixes

• Spring Web/WebFlux: restore GraalVM native-image compatibility (#15306)
• Spring Kafka: end span in afterRecord callback (#15367)
• Spring starter: fix environment variable overrides for array properties in declarative config (#15424)
• Ktor: prevent double end() calls in KtorServerTelemetry (#15452)
• OpenTelemetry API interop: fix null handling in ExtendedOpenTelemetry declarative config (#15478)
• Akka HTTP: fix http.route attribute capture and span naming (#15504)
• Extensions: fix SPI loading for InstrumenterCustomizerProvider and related classes (#15538)
• Sanitize sql statements that may contain unquoted passwords (#15607)

🙇 Thank you

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

@123liuziming @bioplasticlining @Cirilla-zmh @copilot-pull-request-reviewer @cyrille-leclerc @droidnxs @gaeljw @George-C-Odes @ghareeb-falazi @GondaliaKaran @gquintana @jack-berg @jaydeluca @laurit @marychatte @obs-gh-abhishekrao @onurkybsi @philsttr @prydin @robsunday @steverao @SylvainJuge @Tefaier @thompson-tomo @ThorbenKuck @toon-borgers-hs @trask @tylerbenson @zeitlinger