## What's Changed
* Write e2e status to local repo not forked repo by @scidomino in https://github.com/google-gemini/gemini-cli/pull/14549
* Fixes [API Error: Cannot read properties of undefined (reading 'error')] by @silviojr in https://github.com/google-gemini/gemini-cli/pull/14553
* Trigger chained e2e tests on all pull requests by @scidomino in https://github.com/google-gemini/gemini-cli/pull/14551
* Fix bug in the shellExecutionService resulting in both truncation and 3X bloat by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/14545
* Fix issue where we were passing the model content reflecting terminal line wrapping. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/14566
* chore/release: bump version to 0.21.0-nightly.20251204.3da4fd5f7 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/14476
* feat(sessions): use 1-line generated session summary to describe sessions by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/14467
* Use Robot PAT for chained e2e merge queue skipper by @scidomino in https://github.com/google-gemini/gemini-cli/pull/14585
* fix(core): improve API response error handling and retry logic by @mattKorwel in https://github.com/google-gemini/gemini-cli/pull/14563
* Docs: Model routing clarification by @jkcinouye in https://github.com/google-gemini/gemini-cli/pull/14373
* expose previewFeatures flag in a2a by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/14550
* Fix emoji width in debug console. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/14593
* Fully detach autoupgrade process by @scidomino in https://github.com/google-gemini/gemini-cli/pull/14595
* Docs: Update Gemini 3 on Gemini CLI documentation by @jkcinouye in https://github.com/google-gemini/gemini-cli/pull/14601
**Full Changelog**: https://github.com/google-gemini/gemini-cli/compare/v0.21.0-nightly.20251205.f4f2bcbd9...v0.21.0-nightly.20251206.3cf44acc0