Gemini CLI v0.66.0

Gemini CLI v0.66.0 was released on .

Summary

Gemini CLI v0.66.0 is here: smoother terminal rendering, scrollback that sticks around, and safer git and shell environments. Plus MCP OAuth can now reach private endpoints. Curious what else changed?

Release Context

  • This was the 83rd Gemini CLI release of 2026 tracked by Havoptic.
  • It shipped 7 days after Gemini CLI v0.65.0 (October 20, 2026).

Shipped around the same time

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Release Notes

What's Changed Update ROADMAP.md to no longer reference outdated 2025 roadmap by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/29723 Changelog for v0.65.0-preview.0 by @gemini-cli-robot in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 files by @elberthc-byte in https://github.com/google-gemini/gemini-cli/pull/29750 fix(core): harden SKILL.md frontmatter parsing for single-line descriptions by @jesussamuel-byte in https://github.com/google-gemini/gemini-cli/pull/29769 Add Banner about Gemini CLI not being optimized for Gemini 4 by @srithreepo in https://github.com/google-gemini/gemini-cli/pull/29774 Update README to remove obsolete content by @srithreepo in https://github.com/google-gemini/gemini-cli/pull/29775 fix(ci): remove unsupported members permission in unassign-inactive-assignees workflow by @ugorla-dev in https://github.com/google-gemini/gemini-cli/pull/29770 fix(cli): reset slash-command conflict dedupe when conflicts reappear by @jvargassanchez-dot in https://github.com/google-gemini/gemini-cli/pull/29768 fix(cli): verify active binary update to prevent PATH shadowing false success by @urielefrenvirtusa in https://github.com/google-gemini/gemini-cli/pull/29757 fix(cli): support 'keys' array in keybindings.json by @urielefrenvirtusa in https://github.com/google-gemini/gemini-cli/pull/29773 fix(cli): forward termination signals from bootstrap parent to child process by @villahernandez-coder in https://github.com/google-gemini/gemini-cli/pull/29790 fix(ui): preserve terminal scrollback during viewport refreshes by @diegogodinezr in https://github.com/google-gemini/gemini-cli/pull/29792 fix(cli): decode streamed Node HTTP activity chunks with StringDecoder by @jesussamuel-byte in https://github.com/google-gemini/gemini-cli/pull/29827 chore: migrate gsutil usage to gcloud storage by @gurusai-voleti in https://github.com/google-gemini/gemini-cli/pull/29839 fix(core): preserve user-level ~/.gitconfig in shell and git environments by @jesussamuel-byte in https://github.com/google-gemini/gemini-cli/pull/29832 fix(core): prevent false positive matches in isAuthenticationError by @urielefrenvirtusa in https://github.com/google-gemini/gemini-cli/pull/29835 fix(core): support opt-in private network endpoints for MCP OAuth flows by @luisfelipe-alt in https://github.com/google-gemini/gemini-cli/pull/29844 New Contributors @gurusai-voleti made their first contribution in https://github.com/google-gemini/gemini-cli/pull/29839 Full Changelog: https://github.com/google-gemini/gemini-cli/compare/v0.65.0...v0.66.0

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