# Jaeger v2.16.0 — Release v2.16.0

- Product: Jaeger (https://whatsnew.fyi/product/jaeger)
- Vendor: CNCF
- Date: 2026-03-07
- Version: v2.16.0
- Original notes: https://github.com/jaegertracing/jaeger/releases/tag/v2.16.0
- Permalink: https://whatsnew.fyi/product/jaeger/releases/v2.16.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **removed** — Remove legacy response format of remote sampling endpoint
- **added** — Add schemagen for internal extensions
- **changed** — Replace traces.topic with traces.topics in kafka receiver config
- **added** — Add support for elasticsearch health-check timeout at startup
- **fixed** — Support max trace size issue in the query service
- **added** — Add empty span name sanitizer
- **fixed** — Include link attributes when searching by tags in memory backend
- **changed** — Restructure clickhouse findtraceids query to improve performance
- **changed** — Refactor cassandra fromdbmodel and todbmodel to accept and return dbmodel.span
- **changed** — Migrate http servers from gorilla mux to stdlib http.ServeMux

###### Backend Changes

###### ⛔ Breaking Changes

* Enforce Go version consistency across the codebase; require Go 1.25.7 ([@Copilot](https://github.com/apps/copilot-swe-agent) in [#8052](https://github.com/jaegertracing/jaeger/pull/8052))
* Remove legacy response format of remote sampling endpoint ([@yurishkuro](https://github.com/yurishkuro) in [#8014](https://github.com/jaegertracing/jaeger/pull/8014))

###### ✨ New Features

* Feat: add schemagen for internal extensions (#6186) ([@SoumyaRaikwar](https://github.com/SoumyaRaikwar) in [#7947](https://github.com/jaegertracing/jaeger/pull/7947))

###### 🐞 Bug fixes, Minor Improvements

* [kafka receiver config] replace traces.topic: with traces.topics: ([@Copilot](https://github.com/apps/copilot-swe-agent) in [#8144](https://github.com/jaegertracing/jaeger/pull/8144))
* Disable bulk processor in es authenticator test to prevent goroutine leaks ([@Copilot](https://github.com/apps/copilot-swe-agent) in [#8124](https://github.com/jaegertracing/jaeger/pull/8124))
* Add support for es health-check timeout at startup ([@ntdkhiem](https://github.com/ntdkhiem) in [#8096](https://github.com/jaegertracing/jaeger/pull/8096))
* Support max trace size issue in the query service ([@yurishkuro](https://github.com/yurishkuro) in [#8098](https://github.com/jaegertracing/jaeger/pull/8098))
* Add empty span name sanitizer ([@Copilot](https://github.com/apps/copilot-swe-agent) in [#8086](https://github.com/jaegertracing/jaeger/pull/8086))
* [memory] include link attributes when searching by tags ([@Manik2708](https://github.com/Manik2708) in [#8077](https://github.com/jaegertracing/jaeger/pull/8077))
* Fix(ci): update upload-artifact to v6 in metrics comparison workflow ([@jkowall](https://github.com/jkowall) in [#8000](https://github.com/jaegertracing/jaeger/pull/8000))

###### 🚧 Experimental Features

* [clickhouse][perf] restructure clickhouse findtraceids query to improve performance ([@mahadzaryab1](https://github.com/mahadzaryab1) in [#8125](https://github.com/jaegertracing/jaeger/pull/8125))
* [cassandra][v2] refactor `fromdbmodel` and `todbmodel` to accept and return `dbmodel.span` ([@Manik2708](https://github.com/Manik2708) in [#7844](https://github.com/jaegertracing/jaeger/pull/7844))

###### 👷 CI Improvements

* Remove otel_scope_version label from metrics comparison ([@yurishkuro](https://github.com/yurishkuro) in [#8145](https://github.com/jaegertracing/jaeger/pull/8145))
* Ci: always update summary report comment if present ([@yurishkuro](https://github.com/yurishkuro) in [#8135](https://github.com/jaegertracing/jaeger/pull/8135))
* Ci: extract ci summary publish script to `.github/scripts/` with unit tests ([@yurishkuro](https://github.com/yurishkuro) in [#8134](https://github.com/jaegertracing/jaeger/pull/8134))
* Ci: split ci summary report into compute + publish workflows ([@yurishkuro](https://github.com/yurishkuro) in [#8132](https://github.com/jaegertracing/jaeger/pull/8132))
* Ci: use gh pr list to get pr number ([@yurishkuro](https://github.com/yurishkuro) in [#8123](https://github.com/jaegertracing/jaeger/pull/8123))
* Ci: log trigger event for debugging ([@yurishkuro](https://github.com/yurishkuro) in [#8122](https://github.com/jaegertracing/jaeger/pull/8122))
* Ci: fix summary report to be able to retrieve pr number ([@yurishkuro](https://github.com/yurishkuro) in [#8121](https://github.com/jaegertracing/jaeger/pull/8121))
* Ci: migrate coverage gating from codecov to github actions ([@yurishkuro](https://github.com/yurishkuro) in [#8111](https://github.com/jaegertracing/jaeger/pull/8111))
* Ci: migrate coverage gating from codecov to github actions ([@yurishkuro](https://github.com/yurishkuro) in [#8101](https://github.com/jaegertracing/jaeger/pull/8101))
* Fix: correct bot detection in ci parallel mode ([@Copilot](https://github.com/apps/copilot-swe-agent) in [#8097](https://github.com/jaegertracing/jaeger/pull/8097))
* [chore]

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