gemini-cli/docs/changelogs/preview.md

Preview release: v0.38.0-preview.0

Released: April 08, 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

• Context Management: Introduced a Context Compression Service to optimize context window usage and landed a background memory service for skill extraction.
• Enhanced Security: Implemented context-aware persistent policy approvals for smarter tool permissions and enabled web_fetch in plan mode with user confirmation.
• Workflow Monitoring: Added background process monitoring and inspection tools for better visibility into long-running tasks.
• UI/UX Refinements: Enhanced the tool confirmation UI, selection layout, and added support for selective topic expansion and click-to-expand.
• Core Stability: Improved sandbox reliability on Linux and Windows, resolved shebang compatibility issues, and fixed various crashes in the CLI and core services.

What's Changed

• fix(cli): refresh slash command list after /skills reload by @NTaylorMullen in #24454
• Update README.md for links. by @g-samroberts in #22759
• fix(core): ensure complete_task tool calls are recorded in chat history by @abhipatel12 in #24437
• feat(policy): explicitly allow web_fetch in plan mode with ask_user by @Adib234 in #24456
• fix(core): refactor linux sandbox to fix ARG_MAX crashes by @ehedlund in #24286
• feat(config): add experimental.adk.agentSessionNoninteractiveEnabled setting by @adamfweidman in #24439
• Changelog for v0.36.0-preview.8 by @gemini-cli-robot in #24453
• feat(cli): change default loadingPhrases to 'off' to hide tips by @keithguerin in #24342
• fix(cli): ensure agent stops when all declinable tools are cancelled by @NTaylorMullen in #24479
• fix(core): enhance sandbox usability and fix build error by @galz10 in #24460
• Terminal Serializer Optimization by @jacob314 in #24485
• Auto configure memory. by @jacob314 in #24474
• Unused error variables in catch block are not allowed by @alisa-alisa in #24487
• feat(core): add background memory service for skill extraction by @SandyTao520 in #24274
• feat: implement high-signal PR regression check for evaluations by @alisa-alisa in #23937
• Fix shell output display by @jacob314 in #24490
• fix(ui): resolve unwanted vertical spacing around various tool output treatments by @jwhelangoog in #24449
• revert(cli): bring back input box and footer visibility in copy mode by @sehoon38 in #24504
• fix(cli): prevent crash in AnsiOutputText when handling non-array data by @sehoon38 in #24498
• feat(cli): support default values for environment variables by @ruomengz in #24469
• Implement background process monitoring and inspection tools by @cocosheng-g in #23799
• docs(browser-agent): update stale browser agent documentation by @gsquared94 in #24463
• fix: enable browser_agent in integration tests and add localhost fixture tests by @gsquared94 in #24523
• fix(browser): handle computer-use model detection for analyze_screenshot by @gsquared94 in #24502
• feat(core): Land ContextCompressionService by @joshualitt in #24483
• feat(core): scope subagent workspace directories via AsyncLocalStorage by @SandyTao520 in #24445
• Update ink version to 6.6.7 by @jacob314 in #24514
• fix(acp): handle all InvalidStreamError types gracefully in prompt by @sripasg in #24540
• Fix crash when vim editor is not found in PATH on Windows by @Nagajyothi-tammisetti in #22423
• fix(core): move project memory dir under tmp directory by @SandyTao520 in #24542
• Enable 'Other' option for yesno question type by @ruomengz in #24545
• fix(cli): clear stale retry/loading state after cancellation (#21096) by @Aaxhirrr in #21960
• Changelog for v0.37.0-preview.0 by @gemini-cli-robot in #24464
• feat(core): implement context-aware persistent policy approvals by @jerop in #23257
• docs: move agent disabling instructions and update remote agent status by @jackwotherspoon in #24559
• feat(cli): migrate nonInteractiveCli to LegacyAgentSession by @adamfweidman in #22987
• fix(core): unsafe type assertions in Core File System #19712 by @aniketsaurav18 in #19739
• fix(ui): hide model quota in /stats and refactor quota display by @danzaharia1 in #24206
• Changelog for v0.36.0 by @gemini-cli-robot in #24558
• Changelog for v0.37.0-preview.1 by @gemini-cli-robot in #24568
• docs: add missing .md extensions to internal doc links by @ishaan-arora-1 in #24145
• fix(ui): fixed table styling by @devr0306 in #24565
• fix(core): pass includeDirectories to sandbox configuration by @galz10 in #24573
• feat(ui): enable "TerminalBuffer" mode to solve flicker by @jacob314 in #24512
• docs: clarify release coordination by @scidomino in #24575
• fix(core): remove broken PowerShell translation and fix native __write in Windows sandbox by @scidomino in #24571
• Add instructions for how to start react in prod and force react to prod mode by @jacob314 in #24590
• feat(cli): minimalist sandbox status labels by @galz10 in #24582
• Feat/browser agent metrics by @kunal-10-cloud in #24210
• test: fix Windows CI execution and resolve exposed platform failures by @ehedlund in #24476
• feat(core,cli): prioritize summary for topics (#24608) by @Abhijit-2592 in #24609
• show color by @jacob314 in #24613
• feat(cli): enable compact tool output by default (#24509) by @jwhelangoog in #24510
• fix(core): inject skill system instructions into subagent prompts if activated by @abhipatel12 in #24620
• fix(core): improve windows sandbox reliability and fix integration tests by @ehedlund in #24480
• fix(core): ensure sandbox approvals are correctly persisted and matched for proactive expansions by @galz10 in #24577
• feat(cli) Scrollbar for input prompt by @jacob314 in #21992
• Do not run pr-eval workflow when no steering changes detected by @alisa-alisa in #24621
• Fix restoration of topic headers. by @gundermanc in #24650
• feat(core): discourage update topic tool for simple tasks by @Samee24 in #24640
• fix(core): ensure global temp directory is always in sandbox allowed paths by @galz10 in #24638
• fix(core): detect uninitialized lines by @jacob314 in #24646
• docs: update sandboxing documentation and toolSandboxing settings by @galz10 in #24655
• feat(cli): enhance tool confirmation UI and selection layout by @galz10 in #24376
• feat(acp): add support for /about command by @sripasg in #24649
• feat(cli): add role specific metrics to /stats by @cynthialong0-0 in #24659
• split context by @jacob314 in #24623
• fix(cli): remove -S from shebang to fix Windows and BSD execution by @scidomino in #24756
• Fix issue where topic headers can be posted back to back by @gundermanc in #24759
• fix(core): handle partial llm_request in BeforeModel hook override by @krishdef7 in #22326
• fix(ui): improve narration suppression and reduce flicker by @gundermanc in #24635
• fix(ui): fixed auth race condition causing logo to flicker by @devr0306 in #24652
• fix(browser): remove premature browser cleanup after subagent invocation by @gsquared94 in #24753
• Revert "feat(core,cli): prioritize summary for topics (#24608)" by @Abhijit-2592 in #24777
• relax tool sandboxing overrides for plan mode to match defaults. by @DavidAPierce in #24762
• fix(cli): respect global environment variable allowlist by @scidomino in #24767
• fix(cli): ensure skills list outputs to stdout in non-interactive environments by @spencer426 in #24566
• Add an eval for and fix unsafe cloning behavior. by @gundermanc in #24457
• fix(policy): allow complete_task in plan mode by @abhipatel12 in #24771
• feat(telemetry): add browser agent clearcut metrics by @gsquared94 in #24688
• feat(cli): support selective topic expansion and click-to-expand by @Abhijit-2592 in #24793
• temporarily disable sandbox integration test on windows by @ehedlund in #24786
• Remove flakey test by @scidomino in #24837
• Alisa/approve button by @alisa-alisa in #24645
• feat(hooks): display hook system messages in UI by @mbleigh in #24616
• fix(core): propagate BeforeModel hook model override end-to-end by @krishdef7 in #24784
• chore: fix formatting for behavioral eval skill reference file by @abhipatel12 in #24846
• fix: use directory junctions on Windows for skill linking by @enjoykumawat in #24823
• fix(cli): prevent multiple banner increments on remount by @sehoon38 in #24843
• feat(acp): add /help command by @sripasg in #24839
• fix(core): remove tmux alternate buffer warning by @jackwotherspoon in #24852
• Improve sandbox error matching and caching by @DavidAPierce in #24550
• feat(core): add agent protocol UI types and experimental flag by @mbleigh in #24275
• feat(core): use experiment flags for default fetch timeouts by @yunaseoul in #24261
• Revert "fix(ui): improve narration suppression and reduce flicker (#2… by @gundermanc in #24857
• refactor(cli): remove duplication in interactive shell awaiting input hint by @JayadityaGit in #24801
• refactor(core): make LegacyAgentSession dependencies optional by @mbleigh in #24287
• Changelog for v0.37.0-preview.2 by @gemini-cli-robot in #24848
• fix(cli): always show shell command description or actual command by @jacob314 in #24774
• Added flag for ept size and increased default size by @devr0306 in #24859
• fix(core): dispose Scheduler to prevent McpProgress listener leak by @Anjaligarhwal in #24870
• fix(cli): switch default back to terminalBuffer=false and fix regressions introduced for that mode by @jacob314 in #24873
• feat(cli): switch to ctrl+g from ctrl-x by @jacob314 in #24861
• fix: isolate concurrent browser agent instances by @gsquared94 in #24794
• docs: update MCP server OAuth redirect port documentation by @adamfweidman in #24844

Full Changelog: https://github.com/google-gemini/gemini-cli/compare/v0.37.0-preview.2...v0.38.0-preview.0