gemini-cli/docs/changelogs/preview.md

Preview release: Release v0.24.0-preview.0

Released: January 6, 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

What's changed

• chore(core): refactor model resolution and cleanup fallback logic by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/15228
• Add Folder Trust Support To Hooks by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15325
• Record timestamp with code assist metrics. by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/15439
• feat(policy): implement dynamic mode-aware policy evaluation by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15307
• fix(core): use debugLogger.debug for startup profiler logs by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15443
• feat(ui): Add security warning and improve layout for Hooks list by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/15440
• fix #15369, prevent crash on unhandled EIO error in readStdin cleanup by @ElecTwix in https://github.com/google-gemini/gemini-cli/pull/15410
• chore: improve error messages for --resume by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/15360
• chore: remove clipboard file by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/15447
• Implemented unified secrets sanitization and env. redaction options by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/15348
• feat: automatic /model persistence across Gemini CLI sessions by @niyasrad in https://github.com/google-gemini/gemini-cli/pull/13199
• refactor(core): remove deprecated permission aliases from BeforeToolHookOutput by @StoyanD in https://github.com/google-gemini/gemini-cli/pull/14855
• fix: add missing type field to MCPServerConfig by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/15465
• Make schema validation errors non-fatal by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/15487
• chore: limit MCP resources display to 10 by default by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/15489
• Add experimental in-CLI extension install and uninstall subcommands by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/15178
• feat: Add A2A Client Manager and tests by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/15485
• feat: terse transformations of image paths in text buffer by @psinha40898 in https://github.com/google-gemini/gemini-cli/pull/4924
• Security: Project-level hook warnings by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15470
• Added modifyOtherKeys protocol support for tmux by @ved015 in https://github.com/google-gemini/gemini-cli/pull/15524
• chore(core): fix comment typo by @Mapleeeeeeeeeee in https://github.com/google-gemini/gemini-cli/pull/15558
• feat: Show snowfall animation for holiday theme by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15494
• do not persist the fallback model by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15483
• Resolve unhandled promise rejection in ide-client.ts by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/15587
• fix(core): handle checkIsRepo failure in GitService.initialize by @Mapleeeeeeeeeee in https://github.com/google-gemini/gemini-cli/pull/15574
• fix(cli): add enableShellOutputEfficiency to settings schema by @Mapleeeeeeeeeee in https://github.com/google-gemini/gemini-cli/pull/15560
• Manual nightly version bump to 0.24.0-nightly.20251226.546baf993 by @galz10 in https://github.com/google-gemini/gemini-cli/pull/15594
• refactor(core): extract static concerns from CoreToolScheduler by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15589
• fix(core): enable granular shell command allowlisting in policy engine by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15601
• chore/release: bump version to 0.24.0-nightly.20251227.37be16243 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/15612
• refactor: deprecate legacy confirmation settings and enforce Policy Engine by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15626
• Migrate console to coreEvents.emitFeedback or debugLogger by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/15219
• Exponential back-off retries for retryable error without a specified … by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15684
• feat(agents): add support for remote agents and multi-agent TOML files by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/15437
• Update wittyPhrases.ts by @segyges in https://github.com/google-gemini/gemini-cli/pull/15697
• refactor(auth): Refactor non-interactive mode auth validation & refresh by @skeshive in https://github.com/google-gemini/gemini-cli/pull/15679
• Revert "Update wittyPhrases.ts (#15697)" by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15719
• fix(hooks): deduplicate agent hooks and add cross-platform integration tests by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15701
• Implement support for tool input modification by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/15492
• Add instructions to the extensions update info notification by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/14907
• Add extension settings info to /extensions list by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/14905
• Agent Skills: Implement Core Skill Infrastructure & Tiered Discovery by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15698
• chore: remove cot style comments by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15735
• feat(agents): Add remote agents to agent registry by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15711
• feat(hooks): implement STOP_EXECUTION and enhance hook decision handling by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/15685
• Fix build issues caused by year-specific linter rule by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/15780
• fix(core): handle unhandled promise rejection in mcp-client-manager by @kamja44 in https://github.com/google-gemini/gemini-cli/pull/14701
• log fallback mode by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15817
• Agent Skills: Implement Autonomous Activation Tool & Context Injection by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15725
• fix(core): improve shell command with redirection detection by @galz10 in https://github.com/google-gemini/gemini-cli/pull/15683
• Add security docs by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15739
• feat: add folder suggestions to /dir add command by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/15724
• Agent Skills: Implement Agent Integration and System Prompt Awareness by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15728
• chore: cleanup old smart edit settings by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15832
• Agent Skills: Status Bar Integration for Skill Counts by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15741
• fix(core): mock powershell output in shell-utils test by @galz10 in https://github.com/google-gemini/gemini-cli/pull/15831
• Agent Skills: Unify Representation & Centralize Loading by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15833
• Unify shell security policy and remove legacy logic by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15770
• feat(core): restore MessageBus optionality for soft migration (Phase 1) by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15774
• feat(core): Standardize Tool and Agent Invocation constructors (Phase 2) by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15775
• feat(core,cli): enforce mandatory MessageBus injection (Phase 3 Hard Migration) by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15776
• Agent Skills: Extension Support & Security Disclosure by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15834
• feat(hooks): implement granular stop and block behavior for agent hooks by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/15824
• Agent Skills: Add gemini skills CLI management command by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15837
• refactor: consolidate EditTool and SmartEditTool by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15857
• fix(cli): mock fs.readdir in consent tests for Windows compatibility by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15904
• refactor(core): Extract and integrate ToolExecutor by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15900
• Fix terminal hang when user exits browser without logging in by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/15748
• fix: avoid SDK warning by not accessing .text getter in logging by @ved015 in https://github.com/google-gemini/gemini-cli/pull/15706
• Make default settings apply by @devr0306 in https://github.com/google-gemini/gemini-cli/pull/15354
• chore: rename smart-edit to edit by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15923
• Opt-in to persist model from /model by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15820
• fix: prevent /copy crash on Windows by skipping /dev/tty by @ManojINaik in https://github.com/google-gemini/gemini-cli/pull/15657
• Support context injection via SessionStart hook. by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/15746
• Fix order of preflight by @scidomino in https://github.com/google-gemini/gemini-cli/pull/15941
• Fix failing unit tests by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/15940
• fix(cli): resolve paste issue on Windows terminals. by @scidomino in https://github.com/google-gemini/gemini-cli/pull/15932
• Agent Skills: Implement /skills reload by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15865
• Add setting to support OSC 52 paste by @scidomino in https://github.com/google-gemini/gemini-cli/pull/15336
• remove manual string when displaying manual model in the footer by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15967
• fix(core): use correct interactive check for system prompt by @ppergame in https://github.com/google-gemini/gemini-cli/pull/15020
• Inform user of missing settings on extensions update by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/15944
• feat(policy): allow 'modes' in user and admin policies by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15977
• fix: default folder trust to untrusted for enhanced security by @galz10 in https://github.com/google-gemini/gemini-cli/pull/15943
• Add description for each settings item in /settings by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/15936
• Use GetOperation to poll for OnboardUser completion by @ishaanxgupta in https://github.com/google-gemini/gemini-cli/pull/15827
• Agent Skills: Add skill directory to WorkspaceContext upon activation by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15870
• Fix settings command fallback by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/15926
• fix: writeTodo construction by @scidomino in https://github.com/google-gemini/gemini-cli/pull/16014
• properly disable keyboard modes on exit by @scidomino in https://github.com/google-gemini/gemini-cli/pull/16006
• Add workflow to label child issues for rollup by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/16002
• feat(ui): add visual indicators for hook execution by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/15408
• fix: image token estimation by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/16004
• feat(hooks): Add a hooks.enabled setting. by @joshualitt in https://github.com/google-gemini/gemini-cli/pull/15933
• feat(admin): Introduce remote admin settings & implement secureModeEnabled/mcpEnabled by @skeshive in https://github.com/google-gemini/gemini-cli/pull/15935
• Remove trailing whitespace in yaml. by @joshualitt in https://github.com/google-gemini/gemini-cli/pull/16036
• feat(agents): add support for remote agents by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/16013
• fix: limit scheduled issue triage queries to prevent argument list too long error by @jerop in https://github.com/google-gemini/gemini-cli/pull/16021
• ci(github-actions): triage all new issues automatically by @jerop in https://github.com/google-gemini/gemini-cli/pull/16018
• Fix test. by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/16011
• fix: hide broken skills object from settings dialog by @korade-krushna in https://github.com/google-gemini/gemini-cli/pull/15766
• Agent Skills: Initial Documentation & Tutorial by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/15869

Full changelog: https://github.com/google-gemini/gemini-cli/compare/v0.23.0-preview.6...v0.24.0-preview.0