GitHub Copilot CLI — May 2026 Releases
16 releases in May 2026.
What's new in GitHub Copilot CLI, May 2026
GitHub Copilot CLI adds /autopilot, /fork, /rubber-duck and a customizable status line
GitHub Copilot CLI's May 2026 releases focused on session control, autopilot and MCP. New commands include /autopilot (with /autopilot <objective> and a /goal alias), /fork to branch a session, /rubber-duck for an independent critique of the agent's work, /security-review, and /chronicle subcommands for session search and cost tips. Sixteen releases shipped, from v1.0.40 to v1.0.56.
Sessions now resume in their saved working directory, with -C <dir> to override, and --session-id=<id> resumes or starts a session by UUID. MCP got clientcredentials OAuth for headless use, experimental MCP Tasks support, an auth.redirectPort option, and per-server token usage in /mcp and /context. Startup got faster, Alpine Linux (musl) is supported, and the permissions.disableBypassPermissionsMode setting blocks allow-all mode. A security fix protects against RCE from malicious bare repositories nested in a project. Claude Opus 4.8 support arrived in v1.0.55. The remaining releases were mostly terminal rendering, resume and Windows fixes.
- /autopilot toggles autopilot mode; /autopilot <objective> keeps it focused, with /goal as an alias (v1.0.45, v1.0.55)
- /fork creates an independent copy of the current session and accepts an optional name (v1.0.45, v1.0.47)
- /rubber-duck gets an independent critique of the agent's current work (v1.0.49)
- MCP: clientcredentials OAuth for headless auth, experimental MCP Tasks, per-server token usage in /mcp (v1.0.40, v1.0.41, v1.0.55)
- Security fix against RCE from malicious bare repositories nested in a project (v1.0.43)
- Added /security-review, a customizable status line, and permissions.disableBypassPermissionsMode (v1.0.51, v1.0.55)
Upgrading from v1.0.39? See every change through v1.0.56.
- v1.0.56 (May 29, 2026) — 2026-05-29 - Free and Student users can select models other than Auto in the model picker - ThemePicker side-by-side layout fits within a 120-column t
- v1.0.55 (May 28, 2026) — 2026-05-28 - Free and Student plan users on token-based billing are restricted to Auto model selection, with an explanation shown in the model picker
- v1.0.54 (May 24, 2026) — 2026-05-24 Fixes and changes
- v1.0.53 (May 24, 2026) — 2026-05-24 - Multiline prompts display fully without content clipping or selection offset - /skills picker now correctly honors --config-dir when savi
- v1.0.52 (May 23, 2026) — 2026-05-23 - Non-interactive subcommands (plugin list, mcp list, help, version) no longer consume stdin - Add vertical scrollbar with mouse drag suppo
- v1.0.51 (May 20, 2026) — 2026-05-20 - --session-id=<id> resumes known sessions or tasks, and starts new sessions with a specific UUID - /remote commands now respect organizati
- v1.0.49 (May 19, 2026) — 2026-05-18 - postToolUse hook additionalContext is now injected as a system message for the model instead of being silently discarded - Mouse clicks i
- v1.0.48 (May 14, 2026) — 2026-05-14 - Model picker displays actual token prices instead of dot indicators for token-based billing users - Instruction files with unquoted glob
- v1.0.47 (May 13, 2026) — 2026-05-13 - /fork accepts an optional name and forked sessions display their origin in the sessions dialog - Copilot Max subscribers see the correct
- v1.0.46 (May 12, 2026) — 2026-05-12 - Display a warning when the CLI version is deprecated and premium model access may be lost - PowerShell starts correctly when pwsh is inst
- v1.0.45 (May 11, 2026) — 2026-05-11 - Add /autopilot slash command to toggle between interactive and autopilot modes - Fall back to Windows PowerShell (powershell.exe) when Po
- v1.0.44 (May 8, 2026) — 2026-05-08 - Path completion in /add-dir no longer flickers or gets intercepted by @ and pickers - Slash commands can now appear mid-input, and multip
- v1.0.43 (May 6, 2026) — 2026-05-06 - Add username toggle to /statusline picker to display the active account in the footer - Auto mode uses server-side model routing for impr
- v1.0.42 (May 6, 2026) — 2026-05-06 - MCP server failure warning now suggests a directly runnable /mcp show command when the server name contains whitespace - MCP server failu
- v1.0.41 (May 5, 2026) — 2026-05-05 - CLI starts faster by rendering the UI immediately while authentication resolves in the background - Shell completions (bash, zsh, fish) a
- v1.0.40 (May 1, 2026) — 2026-05-01 - PR branch decoration displays correctly in the footer regardless of model name length - /clear and /new reset the active custom agent sel