# Jaeger v2.23.0

> Observability · 2026-11-05

A feature-rich release introduces breaking storage and AI changes alongside new query capabilities and many correctness fixes. A dependency update also requires review of existing configurations.

## Check if affected
- **[breaking]** The `clickhouse` feature gates, removed
  - Applies if you use `clickhouse` feature gates.
  - Unused `clickhouse` feature gates are removed from storage.
- **[breaking]** The `gemini reference sidecar`, removed
  - Applies if you run the `gemini reference sidecar`.
  - The `gemini reference sidecar` is removed from the AI sidecar subsystem.
- **[breaking]** Explicit table engine requirement for `clickhouse` schema creation
  - Applies if you use `clickhouse` when creating the schema.
  - Creating a `clickhouse` schema now requires an explicit table engine.
- **[breaking]** Legacy `acp` tool routing, removed
  - Applies if you use legacy `acp` tool routing.
  - Legacy `acp` tool routing is removed from the AI subsystem.
- **[breaking]** The span search `_id` tie-breaker, disabled by default
  - Applies if you use span search.
  - The span search `_id` tie-breaker is now turned off by default.

## Other recorded changes
- 50 (defect_corrected 32, added 10, value_changed 5, constraint_changed 3)

[Full analysis](https://ratatosk.io/en/releases/jaeger/v2.23.0)

[Original release notes](https://github.com/jaegertracing/jaeger/releases/tag/v2.23.0)