--- title: Elastic APM release notes description: 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... url: https://www.elastic.co/elastic/docs-builder/docs/3016/release-notes/apm products: - APM - APM Server - Elastic Observability applies_to: - Elastic Stack: Generally available --- # 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](https://discuss.elastic.co/c/announcements/security-announcements/31). ## 9.3.2 ### Features and enhancements - Add new storage and disk metrics for Tail Based Sampling ([#20478](https://github.com/elastic/apm-server/pull/20478)) ### Fixes - Fix `timestamp.us` explicit mapping ([#elasticsearch/143593](https://github.com/elastic/elasticsearch/pull/143593)) ## 9.3.1 ### Fixes - Fix potential data race in Tail Based Sampling ([#20140](https://github.com/elastic/apm-server/pull/20140)) - Fix self-instrumentation missing span kind in some traces ([#20210](https://github.com/elastic/apm-server/pull/20210)) ([#20213](https://github.com/elastic/apm-server/pull/20213)) ## 9.3.0 _No new features or enhancements_ _No new fixes_ ## 9.2.7 ### Features and enhancements - Add new storage and disk metrics for Tail Based Sampling ([#20477](https://github.com/elastic/apm-server/pull/20477)) ### Fixes - Fix `timestamp.us` explicit mapping ([#elasticsearch/143594](https://github.com/elastic/elasticsearch/pull/143594)) ## 9.2.6 _No new features, enhancements, or fixes._ ## 9.2.5 ### Fixes - Fix potential data race in Tail Based Sampling ([#20139](https://github.com/elastic/apm-server/pull/20139)) - Fix self-instrumentation missing span kind in some traces ([#20199](https://github.com/elastic/apm-server/pull/20199)) ([#20212](https://github.com/elastic/apm-server/pull/20212)) ## 9.2.4 _No new features, enhancements, or fixes._ ## 9.2.3 _No new features, enhancements, or fixes._ ## 9.2.2 _No new features, enhancements, or fixes._ ## 9.2.1 ### Fixes - Fix build pipeline to ensure resulting binary info shows `vcs.modified=false` ([#19252](https://github.com/elastic/apm-server/pull/19252)) ## 9.2.0 ### Features and enhancements - [Failure store](https://www.elastic.co/docs/manage-data/data-store/data-streams/failure-store) enabled for all new datastreams. This is applied through [elasticsearch#131296](https://github.com/elastic/elasticsearch/pull/131296) and [elasticsearch#131395](https://github.com/elastic/elasticsearch/pull/131395) ### Fixes - Fix `output.elasticsearch.bulk_requests.available` metric to correctly report the available bulk indexers [#18953](https://github.com/elastic/apm-server/pull/18953) ## 9.1.10 _No new features, enhancements, or fixes._ ## 9.1.9 _No new features, enhancements, or fixes._ ## 9.1.8 _No new features, enhancements, or fixes._ ## 9.1.7 ### Fixes - Fix build pipeline to ensure resulting binary info shows `vcs.modified=false` ([#19252](https://github.com/elastic/apm-server/pull/19252)) ## 9.1.6 ### Fixes - Fix `output.elasticsearch.bulk_requests.available` metric to correctly report the available bulk indexers [#18953](https://github.com/elastic/apm-server/pull/18953) ## 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](https://github.com/elastic/kibana/pull/235306) ## 9.1.4 _No new features, enhancements, or fixes._ ## 9.1.3 _No new features, enhancements, or fixes._ ## 9.1.2 _No new features, enhancements, or fixes._ ## 9.1.1 ### Fixes - Fix Fleet-managed apm-server hanging or crashing on config hot reload due to duplicate monitoring registry ([#17872](https://github.com/elastic/apm-server/pull/17872)) ## 9.1.0 ### Features and enhancements - Add config for tail-based sampling discard on write ([#13950](https://github.com/elastic/integrations/pull/13950)) - Add config for tail-based sampling TTL ([#16579](https://github.com/elastic/apm-server/pull/16579)) ### Fixes - Truncate string slice attributes in OTLP labels ([#434](https://github.com/elastic/apm-data/pull/434)) - Fix broken UI by explicitly enabling date detection for the `system.process.cpu.start_time` field ([#130466](https://github.com/elastic/elasticsearch/pull/130466)) - Use representative count for the `event.success_count` metric if available ([#119995](https://github.com/elastic/elasticsearch/pull/119995)) - Fix setting `event.dataset` to `data_stream.dataset` if `event.dataset` is empty, to have `event.dataset` in every `logs-*` data stream ([#129074](https://github.com/elastic/elasticsearch/pull/129074)) - Fix missing trusted root certificate authority in the docker image ([#16928](https://github.com/elastic/apm-server/pull/16928)) ## 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](https://github.com/elastic/kibana/pull/235306). ## 9.0.7 _No new features, enhancements, or fixes._ ## 9.0.6 _No new features, enhancements, or fixes._ ## 9.0.5 _No new features, enhancements, or fixes._ ## 9.0.4 ### Fixes - Tail-based sampling: Fix missing or infrequent monitoring metric `lsm_size` and `value_log_size` ([#17512](https://github.com/elastic/apm-server/pull/17512)) - Fix default tracer `http request sent to https endpoint` error when both self-instrumentation and TLS are enabled ([#17293](https://github.com/elastic/apm-server/pull/17293)) ## 9.0.3 ### Features and enhancements - Tail-based sampling: Optimize performance for instances with more CPU and memory ([#17254](https://github.com/elastic/apm-server/pull/17254)) ### Fixes - Tail-based sampling: Fix ever-increasing dynamic group count monitoring metric ([#17042](https://github.com/elastic/apm-server/pull/17042)) - Tail-based sampling: Fix incorrectly large pebble database `lsm_size` monitoring metric in edge cases which causes TBS to be bypassed ([#17149](https://github.com/elastic/apm-server/pull/17149)) - Tail-based sampling: Log pubsub errors at error or warn level ([#17135](https://github.com/elastic/apm-server/pull/17135)) ## 9.0.2 ### Fixes - Fix missing trusted root certificate authority in the docker image ([#16928](https://github.com/elastic/apm-server/pull/16928)) ## 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](https://github.com/elastic/apm-server/pull/16736)) ## 9.0.0 ### Features and 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](https://docs-v3-preview.elastic.dev/elastic/docs-builder/docs/3016/solutions/observability/apm/transaction-sampling) docs for benchmark details. ([#15235](https://github.com/elastic/apm-server/pull/15235)) ### Fixes - Fix overflow in validation of `apm-server.agent.config.cache.expiration` on 32-bit architectures. ([#15216](https://github.com/elastic/apm-server/pull/15216)) - Change permissions of `apm-server.yml` in `tar.gz` artifacts to `0600`. ([#15627](https://github.com/elastic/apm-server/pull/15627))