Preview release: v0.57.0-preview.0

Released: August 19, 2026

Our preview release includes the latest, new, and experimental features. This release may not be as stable as our latest weekly release.

To install the preview release:

npm install -g @google/gemini-cli@preview

Highlights

• TUI & UX Enhancements: Prevented indefinite TUI hangs by adding execution timeouts, improved autocomplete suggestions with trailing spaces, forced terminal buffer rerenders when exiting external editors, and clarified privacy notice selection options.
• Improved Evals & Testing: Added a new tool call formatter and integrated failure summaries into evals, improving visibility and test validation.
• Core Reliability & Resilience: Implemented context-aware silent retries and availability TTL for capacity errors, rolled back entire multi-turn requests on cancellation or abort, and dynamically resolved Cloud Workstations proxy redirect URIs for OAuth flows.
• Sub-agent & Guardrail Fixes: Formatted the cli_help subagent output as Markdown, prevented subagents from running when agents mode is disabled, and resolved a subagent handoff token regression on startup.

What's Changed

• fix(core): dynamically resolve Cloud Workstations proxy redirect URI for OAuth flows by @amelidev in #28688
• fix(core): resolve swallowed directory mismatch in IDE connections by @amelidev in #28729
• Feat/eval validate by @ved015 in #28344
• feat(evals): add tool call formatter and integrate failure summaries by @ved015 in #28305
• Changelog for v0.55.1 by @gemini-cli-robot in #28779
• test(e2e): stabilize file-system-interactive test on slow runners by @DavidAPierce in #28793
• fix(core): implement context-aware silent retries and availability TTL for capacity errors (#28761) by @DavidAPierce in #28790
• fix(core): rollback entire multi-turn request on cancellation or abort by @amelidev in #28801
• fix(core): normalize git environment and resolve workspace state mismatch by @luisfelipe-alt in #28792
• [SSR Agent] Issue Fix (19826): Migrate process.env to vi.stubEnv in a2a-server tests by @joneba-google in #28811
• [SSR Agent] Issue Fix (21911): Add composite flag to packages/cli tsconfig by @joneba-google in #28813
• [SSR Agent] Issue Fix (26120): Clarify privacy notice wording and selection options by @joneba-google in #28820
• [SSR Agent] Issue Fix (21919): Fix TypeScript strict-null errors in integration tests by @joneba-google in #28814
• [SSR Agent] Issue Fix (21477): Prevent indefinite TUI hang by adding execution timeouts by @joneba-google in #28812
• [SSR Agent] Issue Fix (19239): Update /clear command docs to include context reset by @joneba-google in #28847
• [SSR Agent] Issue Fix (24587): Fix misleading admin error for personal accounts by @joneba-google in #28819
• [SSR Agent] Issue Fix (19463): Format cli_help subagent output as markdown by @joneba-google in #28864
• [SSR Agent] Issue Fix (28050): Add Vertex AI locations documentation link by @joneba-google in #28865
• [SSR Agent] Issue Fix (22093): Prevent subagents from running when agents mode is disabled by @joneba-google in #28867
• [SSR Agent] Issue Fix (23954): Add trailing space to autocomplete suggestions by @joneba-google in #28868
• [SSR Agent] Issue Fix (24935): Force terminal buffer rerender after exiting external editors by @joneba-google in #28880
• [SSR Agent] Issue Fix (28518): Fix sub-agent handoff token regression on startup by @joneba-google in #28882
• fix(core): preserve empty text turns with tools or media by @DavidAPierce in #28892

Full Changelog: https://github.com/google-gemini/gemini-cli/compare/v0.56.0-preview.1...v0.57.0-preview.0