This release targets the OpenTelemetry SDK 1.40.0.

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.

The Spring Boot Starter (opentelemetry-spring-boot-starter) is now stable.

Migration notes

• The opentelemetry-spring-boot and opentelemetry-spring-boot-3 artifacts have been merged into a single artifact named opentelemetry-spring-boot-autoconfigure which supports both Spring Boot 2 and Spring Boot 3
• Two experimental HTTP metrics have been renamed: - http.server.request.size → http.server.request.body.size, - http.server.response.size → http.server.response.body.size

🌟 New javaagent instrumentation

• Javalin (#11587)
• ClickHouse (#11660)

📈 Enhancements

• Support HTTP client instrumentation configuration in Spring starter (#11620)
• Influxdb client: don't fill db.statement for create/drop database and write operations (#11557)
• Support otel.instrumentation.common.default-enabled in the Spring starter (#11746)
• Support Jetty HTTP client 12 (#11519)
• Add Pulsar messaging.producer.duration metric (#11591)
• Improve instrumentation suppression behavior (#11640)
• Propagate OpenTelemetry context through custom AWS client context for Lambda direct calls (#11675)
• Spring Native support for @WithSpan (#11757)
• Support HTTP server instrumentation config properties in the Spring starter (#11667)

🛠️ Bug fixes

• Fix http.server.active_requests metric with async requests (#11638)

🙇 Thank you

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

@123liuziming @breedx-splk @crossoverJie @devurandom @heyams @jaydeluca @jeanbisutti @johnbley @JonasKunz @laurit @lucasamoroso @pandaji @steverao @SylvainJuge @trask @tylerbenson @xiepuhuan @Yindazz @zeitlinger