v1.59.0

Compare Source

API

• Stabilize complex attributes
  (#​7973)
• Limit init valid hex array to range that can be true
  (#​7809)

Extensions

• Trace propagators: Deprecate OtTracePropagator
  (#​8020)
• Trace propagators: Deprecate JaegerPropagator
  (#​8019)

SDK

• Move io.opentelemetry.sdk.internal to io.opentelemetry.sdk.common.internal
  (#​8003)
• Always return ExtendedOpenTelemetry when incubator is available
  (#​7991)

Traces

• Fix memory leak in SdkSpan#spanEndingThread
  (#​7984)

Metrics

• Rework and publish metric benchmarks
  (#​8000)
• Update LongLastValueAggregator algo to avoid allocations
  (#​8017)

Testing

• Fix OTel JUnit5 Extension cleanup when using Nested test classes
  (#​7999)
• Add assertion support for Span hasException(null)
  (#​8033)

Exporters

• DEPRECATION: opentelemetry-exporter-zipkin is now deprecated with the
  last release planned for 1.65.0 (August 2026)
  (#​7974)
• Refactor http, grpc senders and promote to public API
  (#​7782)

Extensions

• Jaeger remote sampler: Remove unused code
  (#​7970)
• Incubator: Add AlwaysRecordSampler
  (#​7877)

Project tooling

• Align generate release contributors
  (#​8023)

v1.58.0

Compare Source

API

Incubator

• Delete GlobalConfigProvider in favor of access via ExtendedOpenTelemetry
  (#​7914)
• Add DeclarativeConfigProperties#get method
  (#​7923)
• Update ConfigProvider#getInstrumentationConfig response to be non-null
  (#​7954)
• Add declarative config utility methods for common operations
  (#​7927)

SDK

Traces

• Implement SDK metrics for trace
  (#​7895,
  #​7930)
• Emit warning when TraceIdRatioBasedSampler is used as child sampler
  (#​7937)

Logs

• Implement SDK metrics for logs
  (#​7931)

Exporters

• Prom exporter update
  (#​7934)

Extensions

• Declarative config: update to opentelemetry-configuration 1.0.0-rc.3
  (#​7861)
• Declarative config: update jaeger remote sampler to require endpoint, initial_sampler
  (#​7943)
• Declarative config: add support for view unit
  (#​7942)
• Declarative config: add support for new logger config minimum_severity and trace_based properties
  (#​7940)
• Declarative config: add support for composable parent threshold sampler
  (#​7941)
• Declarative config: improve pattern for validating and loading SDK extension plugins
  (#​7947)

Project tooling

• Use develocity build cache in PRs and local builds
  (#​7906)
• Configure japicmp classpath to avoid false positives
  (#​7945)

v1.57.0

Compare Source

API

• Add GlobalOpenTelemetry#getOrNoop, #isSet. Update #get to always returns obfuscated instance
  (#​7819)

Incubating

• Logs: Complex attributes incubating implementation
  (#​7814)

SDK

Logs

• Add minimum severity and trace-based logger configuration (incubating API)
  (#​7529)

Exporters

• OTLP: VarHandle string encoder
  (#​7701)
• OTLP: Fix OkHttpGrpcSender to properly await executor shutdown
  (#​7840)
• OTLP: avoid auto-config warning
  (#​7881)
• OTLP: update error message for missing GrpcSenderProvider dependency
  (#​7884)

Extensions

• Declarative config: add runtime hints for graal VM
  (#​7866)
• Declarative config: add missing warning about discarded value
  (#​7821)

Project tooling

• Update macos version to latest and switch to corretto for testing
  (#​7841)
• Sync Java worflows: Allow re-running prepare release branch workflow
  (#​7845)
• Simplify and standardize renovate custom managers across Java repos
  (#​7846)
• Remove misspell workflow
  (#​7852)
• Fix link checks on main
  (#​7867)
• Add zeitlinger as approver
  (#​7868)
• Move snapshot publishing to daily build
  (#​7886)

v1.56.0

Compare Source

API

Incubator

• Support ExtendedOpenTelemetry in GlobalOpenTelemetry
  (#​7799)

SDK

• Changes to MeterConfig, LoggerConfig, TracerConfig are guaranteed to be eventually visible
  (#​7706)

Metrics

• Stabilize ExemplarFilter
  (#​7768)
• Type specific exemplar reservoirs
  (#​7758)

Extensions

• SDK incubator: Add incubator ComposableRuleBasedSampler
  (#​7787)
• SDK incubator: Add incubator ComposableAnnotatingSampler
  (#​7804)
• SDK incubator: Rename ComposableTraceIdRatioBased to ComposableProbability
  (#​7786)
• Declarative config: BREAKING Remove component provider generic type
  (#​7606)
• Declarative config: Add declarative config support for ExemplarFilter
  (#​7769)
• Declarative config: Fix a few declarative configuration bugs
  (#​7807)

Project tooling

• Move to oracle bare metal benchmark runner
  (#​7740)
• Enable Develocity build scans
  (#​7776)
• Document GPG signing key
  (#​7783)
• Update build to use java 21
  (#​7784)
• Sync repository-settings.md documentation
  (#​7791)
• Fix gradle deprecation warning
  (#​7780)
• Small alignments of workflows across the 6 Java repos
  (#​7806)
• Implement min java version gradle tooling from instrumentation repo
  (#​7801)

v1.55.0

Compare Source

API

Common

• Improve GraalVM native image compatibility
  (#​7160)

Traces

• Fix TraceState key validation limits to match W3C specification
  (#​7575)

Incubator

• Add ExtendedOpenTelemetry API
  (#​7496)
• Add incubator implementation of composite sampling specification
  (#​7626)

SDK

Traces

• Proactively avoid Unsafe on Java 23+ to avoid triggering JVM warning message
  (#​7691)

Metrics

• Add setMeterConfigurator() support to MeterProvider (incubating API)
  (#​7346)

Exporters

• OTLP: Configure metric exporter to use SDK's MeterProvider for internal metrics
  (#​7541)
• OTLP: Suppress logging of InterruptedException from managed OkHttp threads
  (#​7565)
• OTLP: Update dependency from okhttp-jvm back to okhttp for Gradle users,
  preserving okhttp-jvm for Maven users
  (#​7681)
• Prometheus: Remove separate otel_scope_info metric and always add scope labels to data points
  (#​7398)
• Prometheus: Update exporter dependencies to use protobuf-free formats
  (#​7664)

Profiling

• Update profiles exporter to support proto v1.8.0-alpha changes
  (#​7638)
• Add abstractions to assist with dictionary table assembly
  (#​7717)
• Add abstractions to assist with sample composition
  (#​7727)

Extensions

• Autoconfigure: Improve exception logging when running in Maven
  (#​7336)
• Declarative configuration: Return Resource
  (#​7639)
• Declarative configuration: Invoke auto-configure listeners
  (#​7654)
• Declarative configuration: Add logging when incompatible types are found
  (#​7693)

Shims

OpenTracing Shim

• Improve log levels in error scenarios
  (#​6832)

Project tooling

• Respect testJavaVersion property when running JMH benchmarks
  (#​7697)

v1.54.1

Compare Source

SDK

Exporters

• Prometheus: Fix regression in protobuf format export
  (#​7664)

v1.54.0

Compare Source

API

Baggage

• Fix guard against ArrayIndexOutOfBoundsException in BaggageCodec
  (#​7239)

SDK

Metrics

• Fix MetricData.getDoubleSumData() ClassCastException with custom implementations
  (#​7597)

Exporters

• Fix HttpExporterBuilder.copy() and GrpcExporterBuilder.copy() to preserve component loader
  (#​7596)

Extensions

• Autoconfigure: Remove support for old EnvironmentResourceProvider package name
  (#​7622)
• Declarative config: Add DeclarativeConfigurationProvider SPI
  (#​7472)
• Declarative config: Pass meter provider to avoid using the global OpenTelemetry instance
  (#​7475)

Project tooling

• Update to Gradle v9
  (#​7590)

v1.53.0

Compare Source

SDK

• File based config will log the wrong file format, when applicable.
  (#​7498)

Exporters

• Change okhttp dependency to okhttp-jvm, which fixes missing class failures in
  transitive dependencies.
  (#​7517)