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Elastic APM release notes

Review the changes, fixes, and more in each version of Elastic APM.

To check for security updates, go to Security announcements for the Elastic stack.

% Release notes include only features, enhancements, and fixes. Add breaking changes, deprecations, and known issues to the applicable release notes sections. % For each new version section, include the Elastic APM and Kibana changes.

% ## Next version [apm-next-release-notes]

% ### Features and enhancements [apm-next-features-enhancements] % * 1 sentence describing the change. ([#PR number](https://github.com/elastic/apm-server/pull/PR number))

% ### Fixes [apm-next-fixes] % * 1 sentence describing the change. ([#PR number](https://github.com/elastic/apm-server/pull/PR number))

9.4.3 [apm-9.4.3-release-notes]

No new features, enhancements, or fixes.

9.4.2 [apm-9.4.2-release-notes]

No new features, enhancements, or fixes.

9.4.1 [apm-9.4.1-release-notes]

Fixes [apm-9.4.1-fixes]

  • Bound Tail-Based Sampling memory usage when reading sampled trace events by implementing paging (#20881)

9.4.0 [apm-9.4.0-release-notes]

Features and enhancements [apm-9.4.0-features-enhancements]

  • Report APM Server status on major health issues (#20166)

Fixes [apm-9.4.0-fixes]

  • Fixed HTTP/2 connections being dropped by strict clients and browser-based RUM agents due to APM Server sending inconsistent SETTINGS frames at connection start. (#20913). For more details, refer to our known issues page

9.3.6 [apm-9.3.6-release-notes]

No new features, enhancements, or fixes.

9.3.5 [apm-9.3.5-release-notes]

Fixes [apm-9.3.5-fixes]

  • Bound Tail-Based Sampling memory usage when reading sampled trace events by implementing paging (#20881)

9.3.4 [apm-9.3.4-release-notes]

Fixes [apm-9.3.4-fixes]

  • Fixed HTTP/2 connections being dropped by strict clients and browser-based RUM agents due to APM Server sending inconsistent SETTINGS frames at connection start. (#20913). For more details, refer to our known issues page

9.3.3 [apm-9.3.3-release-notes]

No new features, enhancements, or fixes.

9.3.2 [apm-9.3.2-release-notes]

Features and enhancements [apm-9.3.2-features-enhancements]

  • Add new storage and disk metrics for Tail Based Sampling (#20478)

Fixes [apm-9.3.2-fixes]

9.3.1 [apm-9.3.1-release-notes]

Fixes [apm-9.3.1-fixes]

  • Fix potential data race in Tail Based Sampling (#20140)
  • Fix self-instrumentation missing span kind in some traces (#20210) (#20213)

9.3.0 [apm-9.3.0-release-notes]

% ### Features and enhancements [apm-9.3.0-features-enhancements] % * 1 sentence describing the change. ([#PR number](https://github.com/elastic/apm-server/pull/PR number))

No new features or enhancements

% ### Fixes [apm-9.3.0-fixes] % * 1 sentence describing the change. ([#PR number](https://github.com/elastic/apm-server/pull/PR number))

No new fixes

9.2.8 [apm-9.2.8-release-notes]

No new features, enhancements, or fixes.

9.2.7 [apm-9.2.7-release-notes]

Features and enhancements [apm-9.2.7-features-enhancements]

  • Add new storage and disk metrics for Tail Based Sampling (#20477)

Fixes [apm-9.2.7-fixes]

9.2.6 [apm-9.2.6-release-notes]

No new features, enhancements, or fixes.

9.2.5 [apm-9.2.5-release-notes]

Fixes [apm-9.2.5-fixes]

  • Fix potential data race in Tail Based Sampling (#20139)
  • Fix self-instrumentation missing span kind in some traces (#20199) (#20212)

9.2.4 [apm-9.2.4-release-notes]

No new features, enhancements, or fixes.

9.2.3 [apm-9.2.3-release-notes]

No new features, enhancements, or fixes.

9.2.2 [apm-9.2.2-release-notes]

No new features, enhancements, or fixes.

9.2.1 [apm-9.2.1-release-notes]

Fixes [apm-9.2.1-fixes]

  • Fix build pipeline to ensure resulting binary info shows vcs.modified=false (#19252)

9.2.0 [apm-9.2.0-release-notes]

Features and enhancements [apm-9.2.0-features-enhancements]

Fixes [apm-9.2.0-fixes]

  • Fix output.elasticsearch.bulk_requests.available metric to correctly report the available bulk indexers #18953

9.1.10 [apm-9.1.10-release-notes]

No new features, enhancements, or fixes.

9.1.9 [apm-9.1.9-release-notes]

No new features, enhancements, or fixes.

9.1.8 [apm-9.1.8-release-notes]

No new features, enhancements, or fixes.

9.1.7 [apm-9.1.7-release-notes]

Fixes [apm-9.1.7-fixes]

  • Fix build pipeline to ensure resulting binary info shows vcs.modified=false (#19252)

9.1.6 [apm-9.1.6-release-notes]

Fixes [apm-9.1.6-fixes]

  • Fix output.elasticsearch.bulk_requests.available metric to correctly report the available bulk indexers #18953

9.1.5 [apm-9.1.5-release-notes]

Fixes [apm-9.1.5-fixes]

  • APM Integration on ECH or ECE uses recommended frozen values for infrastructure related configs. The fix is applied through kibana#235306

9.1.4 [apm-9.1.4-release-notes]

No new features, enhancements, or fixes.

9.1.3 [apm-9.1.3-release-notes]

No new features, enhancements, or fixes.

9.1.2 [apm-9.1.2-release-notes]

No new features, enhancements, or fixes.

9.1.1 [apm-9.1.1-release-notes]

Fixes [apm-9.1.1-fixes]

  • Fix Fleet-managed apm-server hanging or crashing on config hot reload due to duplicate monitoring registry (#17872)

9.1.0 [apm-9.1.0-release-notes]

Features and enhancements [apm-9.1.0-features-enhancements]

  • Add config for tail-based sampling discard on write (#13950)
  • Add config for tail-based sampling TTL (#16579)

Fixes [apm-9.1.0-fixes]

  • Truncate string slice attributes in OTLP labels (#434)
  • Fix broken UI by explicitly enabling date detection for the system.process.cpu.start_time field (#130466)
  • Use representative count for the event.success_count metric if available (#119995)
  • Fix setting event.dataset to data_stream.dataset if event.dataset is empty, to have event.dataset in every logs-* data stream (#129074)
  • Fix missing trusted root certificate authority in the docker image (#16928)

9.0.8 [apm-9.0.8-release-notes]

Fixes [apm-9.0.8-fixes]

  • APM Integration on ECH or ECE uses recommended frozen values for infrastructure related configs. The fix is applied through kibana#235306.

9.0.7 [apm-9.0.7-release-notes]

No new features, enhancements, or fixes.

9.0.6 [apm-9.0.6-release-notes]

No new features, enhancements, or fixes.

9.0.5 [apm-9.0.5-release-notes]

No new features, enhancements, or fixes.

9.0.4 [apm-9.0.4-release-notes]

Fixes [apm-9.0.4-fixes]

  • Tail-based sampling: Fix missing or infrequent monitoring metric lsm_size and value_log_size (#17512)
  • Fix default tracer http request sent to https endpoint error when both self-instrumentation and TLS are enabled (#17293)

9.0.3 [apm-9.0.3-release-notes]

Features and enhancements [apm-9.0.3-features-enhancements]

  • Tail-based sampling: Optimize performance for instances with more CPU and memory (#17254)

Fixes [apm-9.0.3-fixes]

  • Tail-based sampling: Fix ever-increasing dynamic group count monitoring metric (#17042)
  • Tail-based sampling: Fix incorrectly large pebble database lsm_size monitoring metric in edge cases which causes TBS to be bypassed (#17149)
  • Tail-based sampling: Log pubsub errors at error or warn level (#17135)

9.0.2 [apm-9.0.2-release-notes]

Fixes [apm-9.0.2-fixes]

  • Fix missing trusted root certificate authority in the docker image (#16928)

9.0.1 [apm-9.0.1-release-notes]

Fixes [apm-9.0.1-fixes]

  • Tail-based sampling: ignore subscriber position read error and proceed as if file does not exist to avoid crash looping (#16736)

9.0.0 [9-0-0]

Features and enhancements [9-0-0-features-enhancements]

  • Tail-based sampling: Storage layer is rewritten to use Pebble database instead of BadgerDB. The new implementation offers a substantial throughput increase while consuming significantly less memory. Disk usage is significantly lower and more stable. See APM Transaction sampling docs for benchmark details. (#15235)

Fixes [9-0-0-fixes]

  • Fix overflow in validation of apm-server.agent.config.cache.expiration on 32-bit architectures. (#15216)
  • Change permissions of apm-server.yml in tar.gz artifacts to 0600. (#15627)