Google published Gemini CLI 0.66.0 on GitHub as tag v0.66.0 at 2026-10-27T20:26:28Z (2026-10-28 04:26 Asia/Shanghai). On npm, @google/gemini-cli latest is 0.66.0 (npm time 2026-10-27T20:30:04Z / 2026-10-28 04:30 Asia/Shanghai); the preview tag remains 0.67.0-preview.0. Related reading: How Gemini CLI Usage Limits Work for Each Plan (October 2026). The usual install path is npm i -g @google/gemini-cli@latest (npm latest listed 0.66.0 at write-up time).
What landed in 0.66.0
The GitHub Release notes UI and tool-output sync work—synchronized output with an isolated spinner, debug-console height and terminalBuffer flicker fixes, scrollable tool-container border bleed, scheduler-emitted tool-call groups without UI lookahead, and keeping terminal scrollback across viewport refreshes. Settings placeholders are resolved after .env files load. SKILL.md frontmatter parsing is hardened for single-line descriptions. keybindings.json accepts a keys array. Self-update verification checks the active binary so a PATH-shadowed older install is less likely to report a false success. A banner states that Gemini CLI is not optimized for Gemini 4—a compatibility notice, not a claim of native Gemini 4 support. Related reading: Gemini 4 Argon Usage Limits in the Gemini App, Antigravity and API (October 2026).
Secondary notes in the same cut include Windows openDiff argument quoting, formatDuration rounding, non-interactive git credential／SSH prompts in getSafeGitEnv, slash-command conflict dedupe, bootstrap signal forwarding, and assorted MCP／auth／docs cleanups. For rate-limit errors on the site, see Gemini CLI Says "429 Resource Exhausted"? Here's What Google's Docs Say and What to Try.
This build has not been installed or exercised on this site. Product details can change; the latest GitHub Release wording applies. For reference only.