1.12.0-M1

⭐ New Features / Enhancements

• Configurable base time unit for OTLP registry #3870
• Instrumentations for Apache HttpComponents do not meter errors and leak memory #3800

🐞 Bug Fixes

• HttpRequestTags depends on both jakarta and javax Servlet variants #3804

🔨 Dependency Upgrades

• Upgrade to context-propagation 1.1.0-M3 #3975
• Fix Guava dependency resolution #3954
• Upgrade to dynatrace-metric-utils 1.7.1 #3825

📝 Tasks

• Generate dependency lock files for 1.12.0-M1 #3976
• Pin Guava to 32.0.0 #3953
• Deprecate Apache HttpComponents 4.x instrumentation #3932
• Bump compatibility check target to 1.11.0 #3931

1.11.2

🐞 Bug Fixes

• OTLP Histogram missing bucket count for positive infinity #3934
• micrometer-osgi-test artifact should not be published #3929
• StepMeterRegistry publishes on close even if config.enabled is false #3914
• Using publishPercentileHistogram breaks histogram values #3904
• Avoid potential race condition with Observation.NOOP #3946
• ObservationThreadLocalAccessor.restore() generating errors in tests #3943
• OTLA throws NPE when on restore there's no current scope #3942
• Mockito should be an implementation dependency instead of API for micrometer-observation-test #3906
• ObservationThreadLocalAccessor has a public static instance which should be private static #3905
• Introduced binary incompatibility in Micrometer Observation #3902
• Wavefront Proxy validation error with default uri implementation #3903
• Unnecessary ThreadLocal overhead in LogbackMetrics for disabled log levels #3891

📔 Documentation

• Fix Javadoc for ObservationThreadLocalAccessor(ObservationRegistry) #3937
• Add missing @since tags across the code base where appropriate #3907

🔨 Dependency Upgrades

• Upgrade to context-propagation 1.0.4 #3974
• Upgrade to AWS SDK 2.20.100 #3970
• Upgrade to Spectator 1.6.6 #3969
• Upgrade to Mockito 5.4.0 #3968
• Backport 'Fix Guava dependency resolution' #3967
• Upgrade to Spring Boot 2.7.13 #3966
• Upgrade to H2 2.2.220 #3965
• Upgrade to AWS SDK 1.12.503 #3964
• Upgrade to Reactor 3.4.30, Reactor Netty 1.0.33, and Netty 4.1.94 #3963
• Bump com.gradle.enterprise from 3.13.3 to 3.13.4 #3921

📝 Tasks

• Upgrade to Spotless Gradle plugin 6.19.0 #3928
• Upgrade to Gradle Wrapper 8.2 #3951
• OTelCollectorIntegrationTest failing due to breaking change in OTel Collector #3925
• Upgrade to me.champeau.jmh 0.7.1 #3918
• Upgrade to com.github.johnrengelman.shadow 8.1.1 #3917

❤️ Contributors

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

@izeye and @nvervelle

1.10.9

🐞 Bug Fixes

• Avoid potential race condition with Observation.NOOP #3946
• ObservationThreadLocalAccessor.restore() generating errors in tests #3943
• OTLA throws NPE when on restore there's no current scope #3942
• Mockito should be an implementation dependency instead of API for micrometer-observation-test #3906
• ObservationThreadLocalAccessor has a public static instance which should be private static #3905
• Introduced binary incompatibility in Micrometer Observation #3902
• Wavefront Proxy validation error with default uri implementation #3903
• Unnecessary ThreadLocal overhead in LogbackMetrics for disabled log levels #3891

📔 Documentation

• Fix Javadoc for ObservationThreadLocalAccessor(ObservationRegistry) #3937
• Add missing @since tags across the code base where appropriate #3907

🔨 Dependency Upgrades

• Upgrade to context-propagation 1.0.4 #3974
• Upgrade to Mockito 5.4.0 #3968
• Backport 'Fix Guava dependency resolution' #3967
• Upgrade to Spring Boot 2.7.13 #3966
• Upgrade to H2 2.2.220 #3965
• Upgrade to AWS SDK 1.12.503 #3964
• Upgrade to Reactor 3.4.30, Reactor Netty 1.0.33, and Netty 4.1.94 #3963
• Bump com.gradle.enterprise from 3.13.3 to 3.13.4 #3921

📝 Tasks

• Upgrade to Spotless Gradle plugin 6.19.0 #3928
• Upgrade to Gradle Wrapper 8.2 #3951
• OTelCollectorIntegrationTest failing due to breaking change in OTel Collector #3925
• Upgrade to me.champeau.jmh 0.7.1 #3918
• Upgrade to com.github.johnrengelman.shadow 8.1.1 #3917

❤️ Contributors

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

@izeye and @nvervelle

1.9.13

🐞 Bug Fixes

• Wavefront Proxy validation error with default uri implementation #3903
• Unnecessary ThreadLocal overhead in LogbackMetrics for disabled log levels #3891

🔨 Dependency Upgrades

• Backport 'Fix Guava dependency resolution' #3967
• Upgrade to Spring Boot 2.7.13 #3966
• Upgrade to H2 2.2.220 #3965
• Upgrade to AWS SDK 1.12.503 #3964
• Upgrade to Reactor 3.4.30, Reactor Netty 1.0.33, and Netty 4.1.94 #3963
• Bump com.gradle.enterprise from 3.13.3 to 3.13.4 #3921

📝 Tasks

• Upgrade to Gradle Wrapper 8.2 #3951
• OTelCollectorIntegrationTest failing due to breaking change in OTel Collector #3925
• Upgrade to me.champeau.jmh 0.7.1 #3918
• Upgrade to com.github.johnrengelman.shadow 8.1.1 #3917

❤️ Contributors

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

@izeye

1.11.1

🐞 Bug Fixes

• StepRegistry publish on close before scheduled publish loses previous step data #3863
• DeltaHistogram in SignalFx registry doesn't align with count and total #3774
• Proper scope handling in gRPC client instrumentation #3865
• Scope lost between Reactor and imperative code blocks #3833
• Introduces NullObservation #3831
• Make the scope current when needed for grpc server instrumentation #3806
• GRPC current span Tracer.currentSpan() becomes null when processing parallel calls #3805
• Improper varargs check in KeyValues and Tags #3851

🔨 Dependency Upgrades

• Upgrade to AWS SDK 2.20.82 #3900
• Upgrade to Spectator 1.6.5 #3899
• Upgrade to context-propagation 1.0.3 #3890
• Upgrade to Spring Boot 2.7.12 #3898
• Upgrade to Spring Javaformat 0.0.39 #3897
• Upgrade to Testcontainers 1.18.3 #3896
• Upgrade to SignalFx 1.0.32 #3895
• Upgrade to Dropwizard Metrics 4.2.19 #3894
• Upgrade to AWS SDK 1.12.485 #3893
• Upgrade to Reactor Netty 1.0.32 and Netty 4.1.93 #3892
• Bump com.gradle.enterprise from 3.13.2 to 3.13.3 #3862
• Bump com.gradle.enterprise from 3.13.1 to 3.13.2 #3842

❤️ Contributors

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

@lenin-jaganathan, @izeye, and @ttddyy

1.10.8

🐞 Bug Fixes

• Proper scope handling in gRPC client instrumentation #3865
• Scope lost between Reactor and imperative code blocks #3833
• Introduces NullObservation #3831
• Make the scope current when needed for grpc server instrumentation #3806
• GRPC current span Tracer.currentSpan() becomes null when processing parallel calls #3805
• Improper varargs check in KeyValues and Tags #3851

🔨 Dependency Upgrades

• Upgrade to context-propagation 1.0.3 #3890
• Upgrade to Spring Boot 2.7.12 #3898
• Upgrade to Spring Javaformat 0.0.39 #3897
• Upgrade to Testcontainers 1.18.3 #3896
• Upgrade to SignalFx 1.0.32 #3895
• Upgrade to Dropwizard Metrics 4.2.19 #3894
• Upgrade to AWS SDK 1.12.485 #3893
• Upgrade to Reactor Netty 1.0.32 and Netty 4.1.93 #3892
• Bump com.gradle.enterprise from 3.13.2 to 3.13.3 #3862
• Bump com.gradle.enterprise from 3.13.1 to 3.13.2 #3842

❤️ Contributors

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

@izeye and @ttddyy

1.9.12

🐞 Bug Fixes

• Improper varargs check in KeyValues and Tags #3851

🔨 Dependency Upgrades

• Upgrade to Spring Boot 2.7.12 #3898
• Upgrade to Spring Javaformat 0.0.39 #3897
• Upgrade to Testcontainers 1.18.3 #3896
• Upgrade to SignalFx 1.0.32 #3895
• Upgrade to Dropwizard Metrics 4.2.19 #3894
• Upgrade to AWS SDK 1.12.485 #3893
• Upgrade to Reactor Netty 1.0.32 and Netty 4.1.93 #3892
• Bump com.gradle.enterprise from 3.13.2 to 3.13.3 #3862
• Bump com.gradle.enterprise from 3.13.1 to 3.13.2 #3842

1.9.11

⭐ New Features / Enhancements

• Reduces overall memory allocation in DynatraceExporterV2 while exporting #3766

🐞 Bug Fixes

• Backport fix for partial step values on closing publish #3759

🔨 Dependency Upgrades

• Upgrade to Testcontainers 1.18.0 #3818
• Upgrade to JUnit 5.9.3 #3817
• Upgrade to Dropwizard Metrics 4.2.18 #3816
• Upgrade to AWS SDK 1.12.463 #3815
• Upgrade to Logback 1.2.12 #3814
• Upgrade to Reactor 3.4.29, Reactor Netty 1.0.31, and Netty 4.1.92 #3813

📝 Tasks

• Reduce Regex object creation in SignalFx Naming Convention #3747
• Add time units to OTel integration tests #3796
• Upgrade to Gradle Wrapper 8.1.1 #3784

❤️ Contributors

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

@belks, @izeye, and @lenin-jaganathan

1.11.0

⭐ New Features

• Avoid global publishing alignment in OTLP registry #3794
• Avoid needing compiler parameter metadata in CountedAspect #3780
• Reduces overall memory allocation in DynatraceExporterV2 while exporting #3766
• Consistently add outcome tag to all HTTP client instrumentation #3729
• Migrate from Application Insights instrumentation keys to connection strings #3710
• Add supplier variant for Observation.Context.getOrDefault() #3708
• Allow custom sink for LoggingMeterRegistry #3685
• Make cumulative count computations in takeCountSnapshot more efficient #3581
• Configurable aggregation temporality for OTLP registry #3145
• @Timed annotation with dynamic tags derived from input arguments and/or output #1732
• Metrics support for Netty allocators and event executors #522
• Adds hasAnObservation assertion that allows doing arbitrary assertions + clear method #3679
• Add GC name to gc pause metric #3670
• Add metrics for the total number of application threads started in the JVM #3562
• Jetty Client instrumentation with Observation API #3416
• Add support for using new Elasticsearch \_index\_template endpoint for creating index templates. #3320
• OSGi enabled micrometer jars so that they can be deployed as OSGi bundles #3149
• Publish partial step values on application shutdown for step meters #1882
• OTLP registry custom header support #3546
• Add method Observation.observe(Function<C extends Observation.Context, T> function) #3537
• Add support for Azul Prime's (Zing) C4 (GPGC) #2982
• Apache HttpClient 5.x support #2513
• Use Meter.Id for logging in DynatraceExporterV2 #3616

🐞 Bug Fixes

• Set current scope on ObservationRegistry when Scope#makeCurrent is called #3808
• Enclosing scope not being popped #3787
• MicrometerHttpClientInterceptor has no outcome Tag #3790
• OTLP registry publishes incorrect delta values on close #3773
• OTLP delta histogram bucket counts are not aligned to the time window #3772
• Max does not follow the specification for OTLP delta histogram #3771
• StepMeterRegistry closed near a step boundary may lose data #3720
• PushMeterRegistry scheduled publish can collide with publish on close #3711
• Avoid global publishing alignment #2818

📝 Tasks

• Reduce Regex object creation in SignalFx Naming Convention #3747
• Improve StepBucketHistogram #3793
• Polish MeterTag changes #3769
• Add time units to OTel integration tests #3796
• Upgrade to Gradle Wrapper 8.1.1 #3784

❤️ Contributors

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

@asasas234, @lenin-jaganathan, @cbismuth, @kubamarchwicki, @ThePumpingLemma, @izeye, @jprinet, @pirgeo, @mborgraeve, @taer, @belks, and @ttddyy

1.10.7

⭐ New Features / Enhancements

• Avoid needing compiler parameter metadata in CountedAspect #3780
• Reduces overall memory allocation in DynatraceExporterV2 while exporting #3766

🐞 Bug Fixes

• Set current scope on ObservationRegistry when Scope#makeCurrent is called #3808
• Enclosing scope not being popped #3787
• Backport fix for partial step values on closing publish #3759

🔨 Dependency Upgrades

• Upgrade to Testcontainers 1.18.0 #3818
• Upgrade to Dropwizard Metrics 4.2.18 #3816
• Upgrade to AWS SDK 1.12.463 #3815
• Upgrade to Logback 1.2.12 #3814
• Upgrade to Reactor 3.4.29, Reactor Netty 1.0.31, and Netty 4.1.92 #3813

📝 Tasks

• Reduce Regex object creation in SignalFx Naming Convention #3747
• Add time units to OTel integration tests #3796
• Upgrade to Gradle Wrapper 8.1.1 #3784

❤️ Contributors

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

@belks, @izeye, @ttddyy, and @lenin-jaganathan