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Version 1.38.0

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@github-actions github-actions released this 10 May 15:30
30d16eb

API

  • Stabilize synchronous gauge (#6419)

Incubator

  • Add put(AttributeKey, T) overload to EventBuilder (#6331)

Baggage

  • Baggage filters space-only keys (#6431)

SDK

  • Add experimental scope config to enable / disable scopes (i.e. meter, logger, tracer) (#6375)

Traces

  • Add ReadableSpan#getAttributes (#6382)
  • Use standard ArrayList size rather than max number of links for initial span links allocation (#6252)

Metrics

  • Use low precision Clock#now when computing timestamp for exemplars (#6417)
  • Update invalid instrument name log message now that forward slash / is valid (#6343)

Exporters

  • Introduce low allocation OTLP marshalers. If using autoconfigure, opt in via OTEL_JAVA_EXPERIMENTAL_EXPORTER_MEMORY_MODE=REUSABLE_DATA.
    • Low allocation OTLP logs marshaler (#6429)
    • Low allocation OTLP metrics marshaler (#6422)
    • Low allocation OTLP trace marshaler (#6410)
    • Add memory mode support to OTLP exporters (#6430)
    • Marshal span status description without allocation (#6423)
    • Add private constructors for stateless marshalers (#6434)
  • Mark opentelemetry-exporter-sender-jdk stable (#6357)
  • PrometheusHttpServer prevent concurrent reads when reusable memory mode (#6371)
  • Ignore TLS components (SSLContext, TrustManager, KeyManager) if plain HTTP protocol is used for exporting (#6329)
  • Add is_remote_parent span flags to OTLP exported Spans and SpanLinks (#6388)
  • Add missing fields to OTLP metric exporters toString() (#6402)

Extensions

  • Rename otel.config.file to otel.experimental.config.file for autoconfigure (#6396)

OpenCensus Shim

  • Fix opencensus shim spanBuilderWithRemoteParent behavior (#6415)

Tooling

  • Add additional API incubator docs (#6356)
  • Run build on java 21 (#6370)
  • Fix running tests with java 8 on macos (#6411)
  • Move away from deprecated gradle enterprise APIs (#6363)

🙇 Thank you

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

@AlexanderWert
@anuraaga
@arosien
@breedx-splk
@gavin-nia
@jack-berg
@jimshowalter
@jkwatson
@johnbley
@laurit
@LikeTheSalad
@oliver-zhang
@serkan-ozal
@tkmsaaaam
@trask
@tylerbenson