This release targets the OpenTelemetry SDK 1.48.0.

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.

Migration notes

• The java.net.http.HttpClient instrumentation package io.opentelemetry.instrumentation.httpclient was deprecated in favor of the new package name io.opentelemetry.instrumentation.javahttpclient
• The experimental opt-in jvm.buffer.memory.usage metric was renamed to jvm.buffer.memory.used in order to follow general semantic convention naming
• The Http *TelemetryBuilder generic signatures were simplified (#12858)

🌟 New javaagent instrumentation

• AWS Bedrock instrumentation, following Gen AI semantic conventions (#13355, #13408, #13473, #13410)
• ActiveJ HTTP server (#13335)
• Spring Pulsar (#13320)

🌟 New library instrumentation

• AWS Bedrock instrumentation, following Gen AI semantic conventions (#13355, #13408, #13473, #13410)

📈 Enhancements

• Support virtual threads in Spring Scheduling instrumentation (#13370)
• Redact query string values for http client spans (#13114)
• Support attribute lowercase modifier in JMX metrics yaml definitions (#13385)
• Add tapir path matching within pekko instrumentation (#13386)
• Support latest Axis2 version (#13490)
• Add instrumentation for Lambda Java interface HandleStreamRequest (#13466)
• Remove usage of gRPC internal api (#13510)
• Add options to disable gRPC per-message events (#13443)
• Add @WithSpan option to break from existing context and start a new trace (#13112)

🛠️ Bug fixes

• Fix NoSuchElementException thrown by Akka instrumentation (#13360)
• Fix Spring Boot Starter MDC instrumentation for Logback not injecting trace_id (#13391)
• Fix opt-in invoke dynamic instrumentation mechanism in OpenJ9 (#13282)
• Fix spans in Pekko instrumentation on server timeout (#13435)
• Avoid overriding user's trace_id in Log4j MDC instrumentation (#13479)
• Fix gRPC message ID attribute (#13443)

🙇 Thank you

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

@123liuziming @anuraaga @breedx-splk @chlos @Cirilla-zmh @codefromthecrypt @CodePrometheus @Coupon-King @davisjose19 @ejona86 @grcevski @jack-berg @jakobjoachim @jaydeluca @jeanbisutti @jeefy @jkwatson @JonasKunz @kcsurapaneni @KimDoubleB @laurit @luke-sterkowicz @lukeina2z @masonedmison @Matzz @PeterF778 @robsunday @salaboy @samwright @steverao @SylvainJuge @trask @xiepuhuan @xrmx @zeitlinger