## What's Changed
* fix(a2a-server): clear stale cancellation error on new message turns by @amelidev in https://github.com/google-gemini/gemini-cli/pull/28940
* fix(core): declare top-level safety checkers in write policy configuration by @luisfelipe-alt in https://github.com/google-gemini/gemini-cli/pull/28961
* (FIX) history rollback and retry nudge optimizations by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/28934
**Full Changelog**: https://github.com/google-gemini/gemini-cli/compare/v0.56.0-nightly.20260824.g5411f113c...v0.56.0-nightly.20260825.g812f7a2bc