Release v0.28.0-preview.0

What's Changed

• feat(commands): add /prompt-suggest slash command by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/17264
• feat(cli): align hooks enable/disable with skills and improve completion by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/16822
• docs: add CLI reference documentation by @leochiu-a in https://github.com/google-gemini/gemini-cli/pull/17504
• chore(release): bump version to 0.28.0-nightly.20260128.adc8e11bb by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/17725
• feat(skills): final stable promotion cleanup by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17726
• test(core): mock fetch in OAuth transport fallback tests by @jw409 in https://github.com/google-gemini/gemini-cli/pull/17059
• feat(cli): include auth method in /bug by @erikus in https://github.com/google-gemini/gemini-cli/pull/17569
• Add a email privacy note to bug_report template by @nemyung in https://github.com/google-gemini/gemini-cli/pull/17474
• Rewind documentation by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17446
• fix: verify audio/video MIME types with content check by @maru0804 in https://github.com/google-gemini/gemini-cli/pull/16907
• feat(core): add support for positron ide (#15045) by @kapsner in https://github.com/google-gemini/gemini-cli/pull/15047
• /oncall dedup - wrap texts to nextlines by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17782
• fix(admin): rename advanced features admin setting by @skeshive in https://github.com/google-gemini/gemini-cli/pull/17786
• [extension config] Make breaking optional value non-optional by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/17785
• Fix docs-writer skill issues by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17734
• fix(core): suppress duplicate hook failure warnings during streaming by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17727
• test: add more tests for AskUser by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/17720
• feat(cli): enable activity logging for non-interactive mode and evals by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17703
• feat(core): add support for custom deny messages in policy rules by @allenhutchison in https://github.com/google-gemini/gemini-cli/pull/17427
• Fix unintended credential exposure to MCP Servers by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17311
• feat(extensions): add support for custom themes in extensions by @spencer426 in https://github.com/google-gemini/gemini-cli/pull/17327
• fix: persist and restore workspace directories on session resume by @korade-krushna in https://github.com/google-gemini/gemini-cli/pull/17454
• Update release notes pages for 0.26.0 and 0.27.0-preview. by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17744
• feat(ux): update cell border color and created test file for table rendering by @devr0306 in https://github.com/google-gemini/gemini-cli/pull/17798
• Change height for the ToolConfirmationQueue. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17799
• feat(cli): add user identity info to stats command by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17612
• fix(ux): fixed off-by-some wrapping caused by fixed-width characters by @devr0306 in https://github.com/google-gemini/gemini-cli/pull/17816
• feat(cli): update undo/redo keybindings to Cmd+Z/Alt+Z and Shift+Cmd+Z/Shift+Alt+Z by @scidomino in https://github.com/google-gemini/gemini-cli/pull/17800
• fix(evals): use absolute path for activity log directory by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17830
• test: add integration test to verify stdout/stderr routing by @ved015 in https://github.com/google-gemini/gemini-cli/pull/17280
• fix(cli): list installed extensions when update target missing by @tt-a1i in https://github.com/google-gemini/gemini-cli/pull/17082
• fix(cli): handle PAT tokens and credentials in git remote URL parsing by @afarber in https://github.com/google-gemini/gemini-cli/pull/14650
• fix(core): use returnDisplay for error result display by @Nubebuster in https://github.com/google-gemini/gemini-cli/pull/14994
• Fix detection of bun as package manager by @Randomblock1 in https://github.com/google-gemini/gemini-cli/pull/17462
• feat(cli): show hooksConfig.enabled in settings dialog by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17810
• feat(cli): Display user identity (auth, email, tier) on startup by @yunaseoul in https://github.com/google-gemini/gemini-cli/pull/17591
• fix: prevent ghost border for AskUserDialog by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/17788
• docs: mark A2A subagents as experimental in subagents.md by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/17863
• Resolve error thrown for sensitive values by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/17826
• fix(admin): Rename secureModeEnabled to strictModeDisabled by @skeshive in https://github.com/google-gemini/gemini-cli/pull/17789
• feat(ux): update truncate dots to be shorter in tables by @devr0306 in https://github.com/google-gemini/gemini-cli/pull/17825
• fix(core): resolve DEP0040 punycode deprecation via patch-package by @ATHARVA262005 in https://github.com/google-gemini/gemini-cli/pull/17692
• feat(plan): create generic Checklist component and refactor Todo by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17741
• Cleanup post delegate_to_agent removal by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/17875
• fix(core): use GIT_CONFIG_GLOBAL to isolate shadow git repo configuration - Fixes #17877 by @cocosheng-g in https://github.com/google-gemini/gemini-cli/pull/17803
• Disable mouse tracking e2e by @alisa-alisa in https://github.com/google-gemini/gemini-cli/pull/17880
• fix(cli): use correct setting key for Cloud Shell auth by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17884
• chore: revert IDE specific ASCII logo by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/17887
• Revert "fix(core): resolve DEP0040 punycode deprecation via patch-package" by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17898
• Refactoring of disabling of mouse tracking in e2e tests by @alisa-alisa in https://github.com/google-gemini/gemini-cli/pull/17902
• feat(core): Add GOOGLE_GENAI_API_VERSION environment variable support by @deyim in https://github.com/google-gemini/gemini-cli/pull/16177
• feat(core): Isolate and cleanup truncated tool outputs by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17594
• Create skills page, update commands, refine docs by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17842
• feat: preserve EOL in files by @Thomas-Shephard in https://github.com/google-gemini/gemini-cli/pull/16087
• Fix HalfLinePaddedBox in screenreader mode. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17914
• bug(ux) vim mode fixes. Start in insert mode. Fix bug blocking F12 and ctrl-X in vim mode. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17938
• feat(core): implement interactive and non-interactive consent for OAuth by @ehedlund in https://github.com/google-gemini/gemini-cli/pull/17699
• perf(core): optimize token calculation and add support for multimodal tool responses by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17835
• refactor(hooks): remove legacy tools.enableHooks setting by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17867
• feat(ci): add npx smoke test to verify installability by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/17927
• feat(core): implement dynamic policy registration for subagents by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17838
• feat: Implement background shell commands by @galz10 in https://github.com/google-gemini/gemini-cli/pull/14849
• feat(admin): provide actionable error messages for disabled features by @skeshive in https://github.com/google-gemini/gemini-cli/pull/17815
• Fix bugs where Rewind and Resume showed Ugly and 100X too verbose content. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17940
• Fix broken link in docs by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/17959
• feat(plan): reuse standard tool confirmation for AskUser tool by @jerop in https://github.com/google-gemini/gemini-cli/pull/17864
• feat(core): enable overriding CODE_ASSIST_API_VERSION with env var by @lottielin in https://github.com/google-gemini/gemini-cli/pull/17942
• run npx pointing to the specific commit SHA by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17970
• Add allowedExtensions setting by @kevinjwang1 in https://github.com/google-gemini/gemini-cli/pull/17695
• feat(plan): refactor ToolConfirmationPayload to union type by @jerop in https://github.com/google-gemini/gemini-cli/pull/17980
• lower the default max retries to reduce contention by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17975
• fix(core): ensure YOLO mode auto-approves complex shell commands when parsing fails by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17920
• Fix broken link. by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17972
• Support ctrl-C and Ctrl-D correctly Refactor so InputPrompt has priority over AppContainer for input handling. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17993
• Fix truncation for AskQuestion by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/18001
• fix(workflow): update maintainer check logic to be inclusive and case-insensitive by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18009
• Fix Esc cancel during streaming by @LyalinDotCom in https://github.com/google-gemini/gemini-cli/pull/18039
• feat(acp): add session resume support by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18043
• fix(ci): prevent stale PR closer from incorrectly closing new PRs by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18069
• chore: delete autoAccept setting unused in production by @victorvianna in https://github.com/google-gemini/gemini-cli/pull/17862
• feat(plan): use placeholder for choice question "Other" option by @jerop in https://github.com/google-gemini/gemini-cli/pull/18101
• docs: update clearContext to hookSpecificOutput by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/18024
• docs-writer skill: Update docs writer skill by @jkcinouye in https://github.com/google-gemini/gemini-cli/pull/17928
• Sehoon/oncall filter by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/18105
• feat(core): add setting to disable loop detection by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/18008
• Docs: Revise docs/index.md by @jkcinouye in https://github.com/google-gemini/gemini-cli/pull/17879
• Fix up/down arrow regression and add test. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/18108
• fix(ui): prevent content leak in MaxSizedBox bottom overflow by @jerop in https://github.com/google-gemini/gemini-cli/pull/17991
• refactor: migrate checks.ts utility to core and deduplicate by @jerop in https://github.com/google-gemini/gemini-cli/pull/18139
• feat(core): implement tool name aliasing for backward compatibility by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17974
• docs: fix help-wanted label spelling by @pavan-sh in https://github.com/google-gemini/gemini-cli/pull/18114
• feat(cli): implement automatic theme switching based on terminal background by @Abhijit-2592 in https://github.com/google-gemini/gemini-cli/pull/17976
• fix(ide): no-op refactoring that moves the connection logic to helper functions by @skeshive in https://github.com/google-gemini/gemini-cli/pull/18118
• feat: update review-frontend-and-fix slash command to review-and-fix by @galz10 in https://github.com/google-gemini/gemini-cli/pull/18146
• fix: improve Ctrl+R reverse search by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/18075
• feat(plan): handle inconsistency in schedulers by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17813
• feat(plan): add core logic and exit_plan_mode tool definition by @jerop in https://github.com/google-gemini/gemini-cli/pull/18110
• feat(core): rename search_file_content tool to grep_search and add legacy alias by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/18003
• fix(core): prioritize detailed error messages for code assist setup by @gsquared94 in https://github.com/google-gemini/gemini-cli/pull/17852
• fix(cli): resolve environment loading and auth validation issues in ACP mode by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18025
• feat(core): add .agents/skills directory alias for skill discovery by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/18151
• chore(core): reassign telemetry keys to avoid server conflict by @mattKorwel in https://github.com/google-gemini/gemini-cli/pull/18161
• Add link to rewind doc in commands.md by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17961
• feat(core): add draft-2020-12 JSON Schema support with lenient fallback by @afarber in https://github.com/google-gemini/gemini-cli/pull/15060
• refactor(core): robust trimPreservingTrailingNewline and regression test by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/18196
• Remove MCP servers on extension uninstall by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18121
• refactor: localize ACP error parsing logic to cli package by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18193
• feat(core): Add A2A auth config types by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/18205
• Set default max attempts to 3 and use the common variable by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/18209
• feat(plan): add exit_plan_mode ui and prompt by @jerop in https://github.com/google-gemini/gemini-cli/pull/18162
• fix(test): improve test isolation and enable subagent evaluations by @cocosheng-g in https://github.com/google-gemini/gemini-cli/pull/18138
• feat(plan): use custom deny messages in plan mode policies by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/18195
• Match on extension ID when stopping extensions by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18218
• fix(core): Respect user's .gitignore preference by @xyrolle in https://github.com/google-gemini/gemini-cli/pull/15482
• docs: document GEMINI_CLI_HOME environment variable by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/18219
• chore(core): explicitly state plan storage path in prompt by @jerop in https://github.com/google-gemini/gemini-cli/pull/18222
• A2a admin setting by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/17868
• feat(a2a): Add pluggable auth provider infrastructure by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/17934
• Fix handling of empty settings by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18131
• Reload skills when extensions change by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18225
• feat: Add markdown rendering to ask_user tool by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/18211
• Add telemetry to rewind by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/18122
• feat(admin): add support for MCP configuration via admin controls (pt1) by @skeshive in https://github.com/google-gemini/gemini-cli/pull/18223
• feat(core): require user consent before MCP server OAuth by @ehedlund in https://github.com/google-gemini/gemini-cli/pull/18132
• fix(sandbox): propagate GOOGLE_GEMINI_BASE_URL&GOOGLE_VERTEX_BASE_URL env vars by @skeshive in https://github.com/google-gemini/gemini-cli/pull/18231
• feat(ui): move user identity display to header by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/18216
• fix: enforce folder trust for workspace settings, skills, and context by @galz10 in https://github.com/google-gemini/gemini-cli/pull/17596

New Contributors

• @leochiu-a made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17504
• @erikus made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17569
• @nemyung made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17474
• @Randomblock1 made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17462
• @ATHARVA262005 made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17692
• @deyim made their first contribution in https://github.com/google-gemini/gemini-cli/pull/16177
• @lottielin made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17942
• @victorvianna made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17862
• @pavan-sh made their first contribution in https://github.com/google-gemini/gemini-cli/pull/18114
• @Abhijit-2592 made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17976

Full Changelog: https://github.com/google-gemini/gemini-cli/compare/v0.27.0-preview.8...v0.28.0-preview.0