## What's Changed
* fix(cli): provide JSON output for AgentExecutionStopped in non-interactive mode by @cynthialong0-0 in https://github.com/google-gemini/gemini-cli/pull/26504
* feat(evals): add shell command safety evals by @akh64bit in https://github.com/google-gemini/gemini-cli/pull/26528
* fix(core): handle invalid custom plans directory gracefully by @cynthialong0-0 in https://github.com/google-gemini/gemini-cli/pull/26560
* fix(acp): move tool explanation from thought stream to tool call content by @sripasg in https://github.com/google-gemini/gemini-cli/pull/26554
* fix(a2a-server): Resolve race condition in tool completion waiting by @kschaab in https://github.com/google-gemini/gemini-cli/pull/26568
* fix(cli): randomize sandbox container names by @Kkartik14 in https://github.com/google-gemini/gemini-cli/pull/26014
* fix(core): Fix hysteresis in async context management pipelines. by @joshualitt in https://github.com/google-gemini/gemini-cli/pull/26452
* Tighten private Auto Memory patch allowlist by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/26535
* fix(cli): hide read-only settings scopes by @cvan20191 in https://github.com/google-gemini/gemini-cli/pull/26249
* fix(ci): preserve executable bit for mac binaries by @ruomengz in https://github.com/google-gemini/gemini-cli/pull/26600
* fix(cli): improve mcp list UX in untrusted folders by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/26457
* fix(core): prevent silent hang during OAuth auth on headless Linux by @RhysSullivan in https://github.com/google-gemini/gemini-cli/pull/26571
* Changelog for v0.42.0-preview.0 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/26537
* ci: fix Argument list too long in triage workflows by @cocosheng-g in https://github.com/google-gemini/gemini-cli/pull/26603
* refactor(cli): migrate core tools to native ToolDisplay property and fix UI rendering by @mbleigh in https://github.com/google-gemini/gemini-cli/pull/25186
* don't wrap args unnecessarily by @scidomino in https://github.com/google-gemini/gemini-cli/pull/26599
## New Contributors
* @Kkartik14 made their first contribution in https://github.com/google-gemini/gemini-cli/pull/26014
* @cvan20191 made their first contribution in https://github.com/google-gemini/gemini-cli/pull/26249
* @RhysSullivan made their first contribution in https://github.com/google-gemini/gemini-cli/pull/26571
**Full Changelog**: https://github.com/google-gemini/gemini-cli/compare/v0.42.0-nightly.20260506.g80d269054...v0.42.0-nightly.20260507.ga809bc7c5