Google Gemini CLI published v0.66.0-preview.0, which includes a banner indicating it's not

EXHIBIT 2196 · URGENT

Oct 20, 2026 21:20 UTC github google-gemini/gemini-cli

Google Gemini CLI published v0.66.0-preview.0, which includes a banner indicating it's not optimized for Gemini 4 and a fix to remove outdated roadmap references.

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looks like the gemini cli got a new preview release, v0.66.0-preview.0. interesting to see a banner noting it's not optimized for gemini 4 yet.

gemini cli just dropped v0.66.0-preview.0. they're cleaning up the roadmap and added a banner about gemini 4 optimization.

[MERGED across 2 sources: github_releases] shared signal: gemini-cli, gemini-cli-robot --- github_releases :: google-gemini/gemini-cli --- google-gemini/gemini-cli pre-release: v0.66.0-preview.0 name: Release v0.66.0-preview.0 published: 2026-10-20T21:04:34Z url: https://github.com/google-gemini/gemini-cli/releases/tag/v0.66.0-preview.0 ## What's Changed * Update ROADMAP.md to no longer reference outdated 2025 roadmap by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/29723 * Changelog for v0.65.0-preview.0 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/29739 * chore(release): bump version to 0.66.0-nightly.20261013.g204db94ae by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/29740 * Changelog for v0.64.0 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/29741 * fix(ui): implement synchronized output and isolate spinner rendering by @diegogodinezr in https://github.com/google-gemini/gemini-cli/pull/29725 * fix(ui): fix debug console height calculation and terminalBuffer flickering by @ugorla-dev in https://github.com/google-gemini/gemini-cli/pull/29695 * fix(cli): prevent right-hand border bleed in scrollable tool containers by @villahernandez-coder in https://github.com/google-gemini/gemini-cli/pull/29742 * refactor(core,cli): emit tool call groups from the scheduler and drop the UI lookahead by @jesussamuel-byte in https://github.com/google-gemini/gemini-cli/pull/29736 * fix(core): format and quote Windows diff command arguments in openDiff by @jvargassanchez-dot in https://github.com/google-gemini/gemini-cli/pull/29753 * fix(cli): round before selecting units in formatDuration by @diegogodinezr in https://github.com/google-gemini/gemini-cli/pull/29766 * fix(core): disable interactive credential and SSH prompts in getSafeGitEnv by @villahernandez-coder in https://github.com/google-gemini/gemini-cli/pull/29760 * fix(cli): resolve settings placeholders after loading .env file