chore(deps): bump the dependencies group in /examples/opentelemetry with 6 updates

[dependabot]

Bumps the dependencies group in /examples/opentelemetry with 6 updates:

Package	From	To
io.opentelemetry:opentelemetry-sdk	1.65.0	1.66.0
io.opentelemetry:opentelemetry-exporter-otlp	1.65.0	1.66.0
io.opentelemetry:opentelemetry-sdk-extension-autoconfigure	1.65.0	1.66.0
io.opentelemetry:opentelemetry-exporter-prometheus	1.65.0-alpha	1.66.0-alpha
io.opentelemetry.semconv:opentelemetry-semconv	1.43.0	1.44.0
gradle-wrapper	9.7.1	9.8.0

Updates io.opentelemetry:opentelemetry-sdk from 1.65.0 to 1.66.0

Release notes

Sourced from io.opentelemetry:opentelemetry-sdk's releases.

Version 1.66.0

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)
• Prometheus: Remove default host log warning in PrometheusHttpServerBuilder (#8679)
• Prometheus: Align UCUM byte unit conversions with the specification table (#8752)

Extensions

• BREAKING Declarative config: Rename generated model POJO setters from with<Prop> to set<Prop> (#8742)
• Declarative config: Resolve experimental properties on stable APIs in generated model POJOs (#8654)
• Declarative config: Fix inverted scope_info_enabled and target_info_enabled flags in the Prometheus component provider (#8750)
• Declarative config: Support output_stream in otlp_file/development (#8676)
• Incubator: Add toString to ComposableAnnotatingSampler (#8645)

Project tooling

• Remediate zizmor findings in GitHub Actions workflows (#8592)

🙇 Thank you

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

... (truncated)

Changelog

Sourced from io.opentelemetry:opentelemetry-sdk's changelog.

Version 1.66.0 (2026-09-11)

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)

... (truncated)

Commits

• 300a358 [release/v1.66.x] Prepare release 1.66.0 (#8799)
• dd71106 Prepare for 1.66.0 release (#8795)
• 9284265 Manual 1.65.0 post release (#8794)
• 10c7338 Align UCUM byte unit conversions with the specification table (#8752)
• bf1a64c Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint (#8746)
• ab72956 Add number of affected items to Exporter error logging (#8780)
• 275fe92 Update dependency com.squareup.wire:wire-bom to v7 (#8793)
• 050f481 Remove unused parameter from B3 propagation integration tests (#8791)
• 8d7bd65 Improve explicit histogram contention performance (#8717)
• 2c880d9 Rename inverted grpc detection test in GrpcJavaOtlpIntegrationTest (#8790)
• Additional commits viewable in compare view

Updates io.opentelemetry:opentelemetry-exporter-otlp from 1.65.0 to 1.66.0

Release notes

Sourced from io.opentelemetry:opentelemetry-exporter-otlp's releases.

Version 1.66.0

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)
• Prometheus: Remove default host log warning in PrometheusHttpServerBuilder (#8679)
• Prometheus: Align UCUM byte unit conversions with the specification table (#8752)

Extensions

• BREAKING Declarative config: Rename generated model POJO setters from with<Prop> to set<Prop> (#8742)
• Declarative config: Resolve experimental properties on stable APIs in generated model POJOs (#8654)
• Declarative config: Fix inverted scope_info_enabled and target_info_enabled flags in the Prometheus component provider (#8750)
• Declarative config: Support output_stream in otlp_file/development (#8676)
• Incubator: Add toString to ComposableAnnotatingSampler (#8645)

Project tooling

• Remediate zizmor findings in GitHub Actions workflows (#8592)

🙇 Thank you

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

... (truncated)

Changelog

Sourced from io.opentelemetry:opentelemetry-exporter-otlp's changelog.

Version 1.66.0 (2026-09-11)

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)

... (truncated)

Commits

• 300a358 [release/v1.66.x] Prepare release 1.66.0 (#8799)
• dd71106 Prepare for 1.66.0 release (#8795)
• 9284265 Manual 1.65.0 post release (#8794)
• 10c7338 Align UCUM byte unit conversions with the specification table (#8752)
• bf1a64c Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint (#8746)
• ab72956 Add number of affected items to Exporter error logging (#8780)
• 275fe92 Update dependency com.squareup.wire:wire-bom to v7 (#8793)
• 050f481 Remove unused parameter from B3 propagation integration tests (#8791)
• 8d7bd65 Improve explicit histogram contention performance (#8717)
• 2c880d9 Rename inverted grpc detection test in GrpcJavaOtlpIntegrationTest (#8790)
• Additional commits viewable in compare view

Updates io.opentelemetry:opentelemetry-sdk-extension-autoconfigure from 1.65.0 to 1.66.0

Release notes

Sourced from io.opentelemetry:opentelemetry-sdk-extension-autoconfigure's releases.

Version 1.66.0

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)
• Prometheus: Remove default host log warning in PrometheusHttpServerBuilder (#8679)
• Prometheus: Align UCUM byte unit conversions with the specification table (#8752)

Extensions

• BREAKING Declarative config: Rename generated model POJO setters from with<Prop> to set<Prop> (#8742)
• Declarative config: Resolve experimental properties on stable APIs in generated model POJOs (#8654)
• Declarative config: Fix inverted scope_info_enabled and target_info_enabled flags in the Prometheus component provider (#8750)
• Declarative config: Support output_stream in otlp_file/development (#8676)
• Incubator: Add toString to ComposableAnnotatingSampler (#8645)

Project tooling

• Remediate zizmor findings in GitHub Actions workflows (#8592)

🙇 Thank you

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

... (truncated)

Changelog

Sourced from io.opentelemetry:opentelemetry-sdk-extension-autoconfigure's changelog.

Version 1.66.0 (2026-09-11)

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)

... (truncated)

Commits

• 300a358 [release/v1.66.x] Prepare release 1.66.0 (#8799)
• dd71106 Prepare for 1.66.0 release (#8795)
• 9284265 Manual 1.65.0 post release (#8794)
• 10c7338 Align UCUM byte unit conversions with the specification table (#8752)
• bf1a64c Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint (#8746)
• ab72956 Add number of affected items to Exporter error logging (#8780)
• 275fe92 Update dependency com.squareup.wire:wire-bom to v7 (#8793)
• 050f481 Remove unused parameter from B3 propagation integration tests (#8791)
• 8d7bd65 Improve explicit histogram contention performance (#8717)
• 2c880d9 Rename inverted grpc detection test in GrpcJavaOtlpIntegrationTest (#8790)
• Additional commits viewable in compare view

Updates io.opentelemetry:opentelemetry-exporter-prometheus from 1.65.0-alpha to 1.66.0-alpha

Release notes

Sourced from io.opentelemetry:opentelemetry-exporter-prometheus's releases.

Version 1.65.0

NOTE: The opentelemetry-exporter-zipkin artifact has stopped being published. It was deprecated in a prior release. Users should migrate to OTLP or use a Zipkin-compatible collector exporter.

API

• Ignore empty baggage keys in ImmutableBaggage.put (#8658)
• Use NumberFormatException in baggage decoder (#8593)
• Fix TraceStateBuilder.remove corrupting the builder when the same key is removed twice (#8613)

Incubating

• Add bound instrument APIs (BoundLongCounter, BoundDoubleCounter, BoundLongHistogram, BoundDoubleHistogram, BoundLongUpDownCounter, BoundDoubleUpDownCounter, BoundLongGauge, BoundDoubleGauge) to the incubator metrics API (#8527)

Extensions

• Trace propagators: Fix JaegerPropagator baggage header key case sensitivity (#8496)
• Trace propagators: Do not overwrite existing baggage with empty baggage in JaegerPropagator (#8632)
• Trace propagators: Skip empty baggage keys in OtTracePropagator extract (#8631)
• Trace propagators: Stop parsing a jaeger-baggage header after 64 tokens, including malformed tokens (#8702)

SDK

• Update SDK attributes implementation (AttributesMap) to enforce last-value-win semantics based on string value of AttributeKey.getKey() (#8548)

Traces

• Add Sampler shutdown lifecycle: Sampler now extends Closeable and exposes a default shutdown() invoked when the SdkTracerProvider is shut down; JaegerRemoteSampler implements it to stop its polling executor (#8574)

Metrics

• Gate PeriodicMetricReader self-observability metrics by internal telemetry version (#8597)
• Record error.type on failed collections in PeriodicMetricReader (#8650)
• Testing: Fix LongExemplarAssert.hasFilteredAttributesSatisfyingExactly to enforce exact attribute matching (#8518)

Logs

• Fix ReadWriteLogRecord default getObservedTimestampEpochNanos returning the record timestamp (#8504)

Profiles

• Fix profiles data model attribute count parameter name and timestamp doc unit (#8514)

Exporters

• WARNING Zipkin: Delete opentelemetry-exporter-zipkin; the artifact is no longer published (#8677)
• OTLP: Use HTTP error response bodies in HttpExporter warning logs (#8428)
• OTLP: Fix OkHttpHttpSender mTLS when using the platform default trust store (#8565)
• OTLP: Fix sign extension on LogRecord flags in the low-allocation log marshaler (#8493)
• OTLP: Standardize OkHttpHttpSender, JdkHttpSender, and UpstreamGrpcSender shutdown to await executor/channel termination (#8495, #8627, #8624)
• OTLP: Log the underlying except/ion when a gRPC response frame is invalid (#8626)

... (truncated)

Changelog

Sourced from io.opentelemetry:opentelemetry-exporter-prometheus's changelog.

Changelog

Unreleased

Version 1.66.0 (2026-09-11)

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)

... (truncated)

Commits

• See full diff in compare view

Updates io.opentelemetry:opentelemetry-exporter-otlp from 1.65.0 to 1.66.0

Release notes

Sourced from io.opentelemetry:opentelemetry-exporter-otlp's releases.

Version 1.66.0

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)
• Prometheus: Remove default host log warning in PrometheusHttpServerBuilder (#8679)
• Prometheus: Align UCUM byte unit conversions with the specification table (#8752)

Extensions

• BREAKING Declarative config: Rename generated model POJO setters from with<Prop> to set<Prop> (#8742)
• Declarative config: Resolve experimental properties on stable APIs in generated model POJOs (#8654)
• Declarative config: Fix inverted scope_info_enabled and target_info_enabled flags in the Prometheus component provider (#8750)
• Declarative config: Support output_stream in otlp_file/development (#8676)
• Incubator: Add toString to ComposableAnnotatingSampler (#8645)

Project tooling

• Remediate zizmor findings in GitHub Actions workflows (#8592)

🙇 Thank you

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

... (truncated)

Changelog

Sourced from io.opentelemetry:opentelemetry-exporter-otlp's changelog.

Version 1.66.0 (2026-09-11)

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)

... (truncated)

Commits

• 300a358 [release/v1.66.x] Prepare release 1.66.0 (#8799)
• dd71106 Prepare for 1.66.0 release (#8795)
• 9284265 Manual 1.65.0 post release (#8794)
• 10c7338 Align UCUM byte unit conversions with the specification table (#8752)
• bf1a64c Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint (#8746)
• ab72956 Add number of affected items to Exporter error logging (#8780)
• 275fe92 Update dependency com.squareup.wire:wire-bom to v7 (#8793)
• 050f481 Remove unused parameter from B3 propagation integration tests (#8791)
• 8d7bd65 Improve explicit histogram contention performance (#8717)
• 2c880d9 Rename inverted grpc detection test in GrpcJavaOtlpIntegrationTest (#8790)
• Additional commits viewable in compare view

Updates io.opentelemetry:opentelemetry-sdk-extension-autoconfigure from 1.65.0 to 1.66.0

Release notes

Sourced from io.opentelemetry:opentelemetry-sdk-extension-autoconfigure's releases.

Version 1.66.0

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp senders (#8746)
• OTLP: Include the number of affected items in exporter error logging (#8780)
• OTLP: Add toString to OtlpJsonLogging{Span,Metric,LogRecord}Exporter (#8725)
• OTLP Profiles: Improve JFR export example and align LinkData null-element handling with the spec (#8349)
• Prometheus: Remove default host log warning in PrometheusHttpServerBuilder (#8679)
• Prometheus: Align UCUM byte unit conversions with the specification table (#8752)

Extensions

• BREAKING Declarative config: Rename generated model POJO setters from with<Prop> to set<Prop> (#8742)
• Declarative config: Resolve experimental properties on stable APIs in generated model POJOs (#8654)
• Declarative config: Fix inverted scope_info_enabled and target_info_enabled flags in the Prometheus component provider (#8750)
• Declarative config: Support output_stream in otlp_file/development (#8676)
• Incubator: Add toString to ComposableAnnotatingSampler (#8645)

Project tooling

• Remediate zizmor findings in GitHub Actions workflows (#8592)

🙇 Thank you

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

... (truncated)

Changelog

Sourced from io.opentelemetry:opentelemetry-sdk-extension-autoconfigure's changelog.

Version 1.66.0 (2026-09-11)

API

• Fix Baggage.fromContext() and Baggage.fromContextOrNull() to handle a null context (#8667)
• Do not percent-encode W3C baggage metadata (#8682)
• Fix ArrayIndexOutOfBoundsException in OtelEncodingUtils for invalid hex characters (#8748)

SDK

Traces

• Record processed spans before export completes and reject new spans on shutdown in SpanProcessor self-observability instrumentation (#8735)

Metrics

• Improve explicit bucket histogram contention performance (#8717)

Logs

• Record processed logs before export completes and reject new logs on shutdown in LogRecordProcessor self-observability instrumentation (#8698)

Exporters

• OTLP: Respect Retry-After in OTLP HTTP senders (#8633)
• OTLP: Add setEnabledProtocols option to OTLP HTTP exporter builders (#8610)
• OTLP: Reject mixing keyManager and sslContext in TlsConfigHelper (#8710)
• OTLP: Fix OkHttpGrpcSender mTLS when using the platform default trust store (#8758)
• OTLP: Suppress instrumentation of exporter requests in JdkHttpSender (#8757)
• OTLP: Accept RFC 1123 hostnames in EndpointUtil.validateEndpoint for OkHttp sende...

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✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 39.33%. Comparing base (a3a0db9) to head (4c1d85a).

❌ Your project status has failed because the head coverage (39.33%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #396      +/-   ##
============================================
- Coverage     39.34%   39.33%   -0.02%     
+ Complexity     1331     1330       -1     
============================================
  Files           202      202              
  Lines          7757     7757              
  Branches        912      912              
============================================
- Hits           3052     3051       -1     
  Misses         4549     4549              
- Partials        156      157       +1     

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