1.4.0

⚠️ Noteworthy

• OTel dependency convergence issue #819

⭐ New Features

• Support list values in tags in Span and SpanCustomizer #817
• Make OtelSpan public instead of package-private #808
• Add @Nullable annotations #744
• Propagating values from Observation.Context to Trace's Baggage #455

🔨 Dependency Upgrades

• Upgrade to Micrometer 1.14.0 #886
• Bump io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha to 2.9.0-alpha [#876] (#876) (Brings in io.opentelemetry:opentelemetry-bom:1.43.0)
• Bump io.zipkin.reporter2:zipkin-reporter-bom to 3.4.2 #846

❤️ Contributors

Thank you to all the contributors who worked on this release:

@Jasz, @chemicL, @ThomasVitale, @m15o

1.3.6

🔨 Dependency Upgrades

• Bump io.micrometer:micrometer-bom from 1.13.6 to 1.13.7 #885

1.2.12

🔨 Dependency Upgrades

• Bump io.micrometer:micrometer-bom from 1.12.11 to 1.12.12 #884

1.4.0-RC1

This is a pre-release milestone for early testing purposes. See https://github.com/micrometer-metrics/tracing?tab=readme-ov-file#milestone-releases

⭐ New Features

• Support list values in tags in Span and SpanCustomizer #817
• Make OtelSpan public instead of package-private #808

🔨 Dependency Upgrades

• Upgrade to Micrometer 1.14.0-RC1 #871
• Bump io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha from 2.7.0-alpha to 2.8.0-alpha #845
• Bump io.zipkin.reporter2:zipkin-reporter-bom from 3.4.0 to 3.4.1 #840
• Bump io.zipkin.reporter2:zipkin-reporter-bom from 3.4.1 to 3.4.2 #846

❤️ Contributors

Thank you to all the contributors who worked on this release:

@Jasz and @ThomasVitale

1.3.5

🔨 Dependency Upgrades

• Bump io.micrometer:micrometer-bom from 1.13.4 to 1.13.6 #870
• Bump io.micrometer:context-propagation from 1.1.1 to 1.1.2 #869
• Bump ch.qos.logback:logback-classic from 1.5.8 to 1.5.10 #865
• Bump org.junit:junit-bom from 5.10.3 to 5.10.5 #859
• Bump io.zipkin.reporter2:zipkin-reporter-bom from 3.4.1 to 3.4.2 #847
• Bump io.zipkin.reporter2:zipkin-reporter-bom from 3.4.0 to 3.4.1 #838
• Bump ch.qos.logback:logback-classic from 1.5.7 to 1.5.8 #834

📝 Tasks

• Bump io.spring.develocity.conventions from 0.0.20 to 0.0.22 #856

1.2.11

🔨 Dependency Upgrades

• Bump io.micrometer:context-propagation from 1.1.1 to 1.1.2 #868
• Bump io.micrometer:micrometer-bom from 1.12.10 to 1.12.11 #867
• Bump org.junit:junit-bom from 5.10.3 to 5.10.5 #860

📝 Tasks

• Bump io.spring.develocity.conventions from 0.0.20 to 0.0.22 #853

1.4.0-M3

⚠️ Noteworthy

• OTel dependency convergence issue #819

🐞 Bug Fixes

• OTel dependency convergence issue #819

🔨 Dependency Upgrades

• Bump io.micrometer:micrometer-bom to 1.14.0-M3 #837
• Upgrade OTel instrumentation BOM to 2.7.0-alpha #828

📝 Tasks

• Bump mockito from 5.12.0 to 5.13.0 #827
• Bump io.spring.develocity.conventions from 0.0.19 to 0.0.20 #820
• Bump com.gradle.develocity from 3.17.6 to 3.18 #818
• Bump ch.qos.logback:logback-classic from 1.5.6 to 1.5.7 #816
• Bump org.junit:junit-bom from 5.10.3 to 5.11.0 #813
• Bump spring from 5.3.37 to 5.3.39 #812
• Bump io.projectreactor:reactor-bom from 2022.0.21 to 2022.0.22 #807
• Bump io.spring.javaformat:spring-javaformat-checkstyle from 0.0.42 to 0.0.43 #806
• Bump io.spring.javaformat:spring-javaformat-gradle-plugin from 0.0.42 to 0.0.43 #804
• Use TestObservationRegistry in context propagation tests #810

❤️ Contributors

Thank you to all the contributors who worked on this release:

@chemicL

1.3.4

Because of issues with OTel dependencies, this release effectively downgrades

• io.opentelemetry.instrumentation:opentelemetry-instrumentation-api-semconv from 1.33.5-alpha to 1.33.3-alpha
• io.opentelemetry:opentelemetry-api from 1.40.0 to 1.38.0

This is because we usually don't upgrade minor versions in patch releases but since OTel does, we unintentionally upgraded io.opentelemetry:opentelemetry-api from 1.38.0 to 1.40.0 (minor version bump) in earlier patch releases since we upgraded io.opentelemetry.instrumentation:opentelemetry-instrumentation-api-semconv from 1.33.3-alpha to 1.33.5-alpha (patch version bump). A minor version bump in a patch release can be unexpected so this release restores the same minor versions of OTel that 1.3.0 used, see: #819.

⚠️ Noteworthy

• OTel dependency convergence issue #819

🐞 Bug Fixes

• OTel dependency convergence issue #819

🔨 Dependency Upgrades

• Bump io.micrometer:micrometer-bom from 1.13.3 to 1.13.4 #835

📝 Tasks

• Bump io.spring.develocity.conventions from 0.0.19 to 0.0.20 #822
• Bump ch.qos.logback:logback-classic from 1.5.6 to 1.5.7 #815
• Bump spring from 5.3.37 to 5.3.39 #814
• Bump io.projectreactor:reactor-bom from 2022.0.21 to 2022.0.22 #800
• Bump io.spring.javaformat:spring-javaformat-gradle-plugin from 0.0.42 to 0.0.43 #799
• Bump io.spring.javaformat:spring-javaformat-checkstyle from 0.0.42 to 0.0.43 #798
• Use TestObservationRegistry in context propagation tests #810

❤️ Contributors

Thank you to all the contributors who worked on this release:

@chemicL

1.2.10

Because of dependency issues in OTel, you might get conflicting versions of io.opentelemetry:opentelemetry-api that your build tool should be able to deal with and resolve the higher version but here are the details in case you want to double-check it:
Micrometer depends on io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha:1.31.0-alpha which brings in io.opentelemetry:opentelemetry-api:1.31.0 (through io.opentelemetry:opentelemetry-bom:1.31.0) and io.opentelemetry.semconv:opentelemetry-semconv:1.21.0-alpha. But io.opentelemetry.semconv:opentelemetry-semconv:1.21.0-alpha brings in io.opentelemetry:opentelemetry-api:1.29.0.

So in OTel's dependency tree both 1.29.0 and 1.31.0 of io.opentelemetry:opentelemetry-api are present, see: #819.

⚠️ Noteworthy

• OTel dependency convergence issue #819

🐞 Bug Fixes

• OTel dependency convergence issue #819

🔨 Dependency Upgrades

• Bump io.micrometer:micrometer-bom from 1.12.9 to 1.12.10 #836

📝 Tasks

• Bump io.spring.develocity.conventions from 0.0.19 to 0.0.20 #821
• Bump spring from 5.3.37 to 5.3.39 #811
• Use TestObservationRegistry in context propagation tests #810
• Bump io.spring.javaformat:spring-javaformat-gradle-plugin from 0.0.42 to 0.0.43 #803
• Bump io.projectreactor:reactor-bom from 2022.0.21 to 2022.0.22 #802
• Bump io.spring.javaformat:spring-javaformat-checkstyle from 0.0.42 to 0.0.43 #801

❤️ Contributors

Thank you to all the contributors who worked on this release:

@chemicL

1.4.0-M2

This is a pre-release milestone for early testing purposes. See https://github.com/micrometer-metrics/tracing?tab=readme-ov-file#milestone-releases

🔨 Dependency Upgrades

• Upgrade to Micrometer 1.14.0-M2 #797
• Bump io.opentelemetry:opentelemetry-bom from 1.39.0 to 1.41.0 #794
• Bump io.opentelemetry:opentelemetry-bom-alpha from 1.39.0-alpha to 1.41.0-alpha #793
• Bump io.opentelemetry.instrumentation:opentelemetry-instrumentation-api-semconv from 1.33.4-alpha to 1.33.5-alpha #784