## What's Changed
* [SSR Agent] Issue Fix (28050): Add Vertex AI locations documentation link by @joneba-google in https://github.com/google-gemini/gemini-cli/pull/28865
* [SSR Agent] Issue Fix (22093): Prevent subagents from running when agents mode is disabled by @joneba-google in https://github.com/google-gemini/gemini-cli/pull/28867
* [SSR Agent] Issue Fix (23954): Add trailing space to autocomplete suggestions by @joneba-google in https://github.com/google-gemini/gemini-cli/pull/28868
* [SSR Agent] Issue Fix (24935): Force terminal buffer rerender after exiting external editors by @joneba-google in https://github.com/google-gemini/gemini-cli/pull/28880
* [SSR Agent] Issue Fix (28518): Fix sub-agent handoff token regression on startup by @joneba-google in https://github.com/google-gemini/gemini-cli/pull/28882
**Full Changelog**: https://github.com/google-gemini/gemini-cli/compare/v0.56.0-nightly.20260818.g194edea47...v0.56.0-nightly.20260819.g571851b10