:star: New Features

• Support Jetty 12 in JettyConnectionMetrics #4324
• Support generational ZGC #4258
• Remove native-image.properties from micrometer-core #4245
• Add Observation instrumentation for Jakarta JMS #4007
• Move Jakarta JMS instrumentation to micrometer-jakarta9 #4201
• Add shortcut to assign dynamic tags to Meters #535
• Support new CSP auth method for Wavefront (AOA) #4054
• Add hasAnObservationWithAKeyValue() variant with KeyValue #4040
• Add xxxKeyValue() variants with KeyValue to ObservationContextAssert #4038
• Add a timestamp to Event in Observation #4032
• Dynatrace Registry: Export units and descriptions #3979
• Provide a way to make decisions based on the parent in ObservationPredicate #3678
• Add exemplar support to _count #3996
• Configurable base time unit for OTLP registry #3870
• Instrumentations for Apache HttpComponents do not meter errors and leak memory #3800

:notebook_with_decorative_cover: Documentation

• Deprecate Apache HttpComponents 4.x instrumentation #3932

:lady_beetle: Bug Fixes

• [Dynatrace v2] Only serialize metadata when set on the meter #4247
• Async log4j2 log events are not counted accurately #2176
  • log4j2 2.21.0 or later is required for this fix
• Transitive Guava dependency in Stackdriver module is causing build failures #4010
• HttpRequestTags depends on both jakarta and javax Servlet variants #3804

:hammer: Dependency Upgrades

• [Dynatrace v2] Update to utils library v2 #4064
• Bump com.tngtech.archunit:archunit-junit5 from 1.1.0 to 1.2.0 #4348
• Bump org.mockito:mockito-core from 5.6.0 to 5.7.0 #4347
• Bump junit from 5.10.0 to 5.10.1 #4346
• Bump org.mongodb:mongodb-driver-sync from 4.11.0 to 4.11.1 #4345
• Bump dropwizard-metrics from 4.2.21 to 4.2.22 #4344
• Bump io.netty:netty-bom from 4.1.100.Final to 4.1.101.Final #4343
• Bump com.amazonaws:aws-java-sdk-cloudwatch from 1.12.573 to 1.12.586 #4342
• Bump org.junit.platform:junit-platform-launcher from 1.10.0 to 1.10.1 #4341
• Bump software.amazon.awssdk:cloudwatch from 2.21.7 to 2.21.20 #4340
• Bump com.netflix.spectator:spectator-reg-atlas from 1.7.0 to 1.7.2 #4339
• Bump io.javalin:javalin from 5.6.2 to 5.6.3 #4304
• Bump com.netflix.spectator:spectator-reg-atlas from 1.6.11 to 1.7.0 #4297
• Bump com.wavefront:wavefront-sdk-java from 3.4.2 to 3.4.3 #4296
• Bump activemq-artemis from 2.31.0 to 2.31.2 #4294
• Bump software.amazon.awssdk:cloudwatch from 2.21.5 to 2.21.7 #4281
• Bump com.google.cloud:google-cloud-monitoring from 3.29.0 to 3.30.0 #4280
• Bump org.apache.logging.log4j:log4j-core from 2.21.0 to 2.21.1 #4278
• Bump com.amazonaws:aws-java-sdk-cloudwatch from 1.12.571 to 1.12.573 #4276
• Bump com.dynatrace.metric.util:dynatrace-metric-utils-java from 2.0.0 to 2.0.1 #4267
• Bump com.amazonaws:aws-java-sdk-cloudwatch from 1.12.566 to 1.12.571 #4266
• Bump software.amazon.awssdk:cloudwatch from 2.21.1 to 2.21.5 #4265
• Bump jersey2 from 2.40 to 2.41 #4264
• Bump org.apache.logging.log4j:log4j-core from 2.20.0 to 2.21.0 #4253
• Bump software.amazon.awssdk:cloudwatch from 2.21.0 to 2.21.1 #4252
• Bump io.micrometer:context-propagation to 1.1.0 #4244
• Bump io.projectreactor:reactor-bom from 2022.0.11 to 2022.0.12 #4241
• Bump com.wavefront:wavefront-sdk-java from 3.4.1 to 3.4.2 #4240
• Bump software.amazon.awssdk:cloudwatch from 2.20.162 to 2.21.0 #4239
• Bump dropwizard-metrics from 4.2.20 to 4.2.21 #4236
• Bump com.fasterxml.jackson.core:jackson-databind from 2.15.2 to 2.15.3 #4231
• Bump com.signalfx.public:signalfx-java from 1.0.35 to 1.0.36 #4230
• Bump com.amazonaws:aws-java-sdk-cloudwatch from 1.12.565 to 1.12.566 #4226
• Bump com.google.cloud:google-cloud-monitoring from 3.28.0 to 3.29.0 #4220
• Bump org.mongodb:mongodb-driver-sync from 4.10.2 to 4.11.0 #4216

:heart: Contributors

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

@izeye, @pirgeo, @ttddyy, and @zakkak