This release targets the OpenTelemetry SDK 1.44.1.

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.

🌟 New javaagent instrumentation

• Ktor 3 instrumentation (#12562)

🌟 New library instrumentation

• Ktor 3 instrumentation (#12562)

Migration notes

• Spring Boot Starter Scheduling instrumentation scope name changed from io.opentelemetry.spring-scheduling-3.1 to io.opentelemetry.spring-boot-autoconfigure to reflect the module's name.
• Default flush timeout for aws lambda javaagent instrumentation changed from 1 second to 10 seconds to match the flush timeout used in the aws lambda library instrumentation. (#12576)

📈 Enhancements

• Delegate loading of java package to platform loader (#12505)
• Set up virtual field transforms before otel sdk is initialized (#12444)
• Update azure-core-tracing-opentelemetry version and improve HTTP suppression to back off when Azure SDK tracing is disabled. (#12489)
• Ktor2 http client uses low level instrumentation (#12530)
• Add logback mdc instrumentation to spring boot starter (#12515)
• Run class load listener only once (#12565)
• Remove duplicate byte buddy classes to reduce agent jar file size (#12571)
• Support additional JVM arg syntax in service name resource detector (#12544)

🛠️ Bug fixes

• Fix derby directory connection string parser (#12479)
• Improve whitespace handling in oracle jdbc url parser (#12512)
• Fix SpanKey bridging for unbridgeable span (#12511)
• Fix lettuce instrumentation and tests to pass against latest version (#12552)
• Fix Kafka initialization occasionally failed due to concurrent injection of OpenTelemetryMetricsReporter (#12583)

🙇 Thank you

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

@AntonioLyubchev @breedx-splk @brunobat @Cirilla-zmh @e5l @greatvovan @heyams @jaydeluca @jeanbisutti @JonasKunz @laurit @lmolkova @misaya98 @obs-gh-abhishekrao @pengliaoye @shalk @smoke @steverao @SylvainJuge @trask @v-chernyshev @vanilla-sundae @zeitlinger