Copilot CLI Updates & Release Notes

2026-09-30

• Add support for GPT-6.1 Sol in model selection
• Add --mcp-github-auth to scope GitHub account auth to approved MCP server origins
• Add session-scoped read-only directory approvals to path access prompts
• Permission prompts remain answerable after resuming interrupted sessions.
• Auto-approval now takes into account messages you type while the agent is working, as it already did for prompts sent while it was idle
• Compaction now returns a summary even when instructions ask for tool use.
• Copying selected text on Wayland now finishes as soon as wl-copy accepts it, instead of timing out and falling back to the in-process clipboard that can print "Somebody else owns the clipboard now" over the UI
• A narrow Sessions sidebar drops keyboard hints that do not fit instead of cutting one off mid-word
• MCP tools recover after transient discovery failures without restarting the session; unchanged catalogs remain available during recovery.
• "No supported model available" is no longer shown on launch or in the model picker when a configured provider already supplies a model
• MCP tool calls complete even when servers keep sending progress updates after responding
• A fresh launch no longer prints "Failed to read model provider attribution" errors while it signs in
• MCP OAuth sign-in to servers such as Datadog reuses a still-valid cached token
• Withdrawn running prompts stay removed after session resume …

Added

• Add support for GPT-6.1 Sol in model selection

Improved

• Click anywhere on expanded tool calls in compact timeline to collapse them
• Holding Space and Ctrl+X V explain when voice mode is off or still getting ready

Fixed

• Permission prompts remain answerable after resuming interrupted sessions.
• Auto-approval now takes into account messages you type while the agent is working, as it already did for prompts sent while it was idle
• Compaction now returns a summary even when instructions ask for tool use.
• Copying selected text on Wayland now finishes as soon as wl-copy accepts it, instead of timing out and falling back to the in-process clipboard that can print "Somebody else owns the clipboard now" over the UI
• A narrow Sessions sidebar drops keyboard hints that do not fit instead of cutting one off mid-word
• MCP tools recover after transient discovery failures without restarting the session; unchanged catalogs remain available during recovery.

2026-09-28

• Left-clicking supported ask_user and elicitation form inputs focuses them and places the cursor at the clicked position
• Add support for Claude Code rule files in .claude/rules as custom instructions
• Sessions in the sidebar show a blue dot when they finished a turn you have not opened yet
• Auto suggests a routing tier and lets you switch with a shortcut or click
• Auto shows a quick feedback prompt after switching away to a manually selected model
• MCP pre-registered OAuth clients honor configured oauthScopes.
• In local sessions, Esc Esc in an empty chat input takes back a prompt whose turn the model has not started answering and removes it from the conversation
• Add GPT-6 Sol and GPT-6 Luna to the model picker when available
• Adding support for claude-opus-5.5
• Shell output no longer shows trailing command completion metadata.
• Timeline output stops auto-following while text selection is active
• server/tool and server/* tool filters now match MCP tool names that contain a slash
• Queue exit commands while an agent response is still running
• Extensions no longer fail to load under enterprise managed settings while managed MCP policy is still being applied
• Fixed Git failures in applications launched from CLI shells when empty environment variables are dropped, on Git 2.36 or newer.
• Sessions sidebar saves opened and closed tabs as they change, rather than only on exit
• Agent shell commands in sandbox can access session files and logs …

Added

• Left-clicking supported ask_user and elicitation form inputs focuses them and places the cursor at the clicked position
• Add support for Claude Code rule files in .claude/rules as custom instructions
• Sessions in the sidebar show a blue dot when they finished a turn you have not opened yet

Fixed

• Extensions no longer fail to load under enterprise managed settings while managed MCP policy is still being applied
• Fixed Git failures in applications launched from CLI shells when empty environment variables are dropped, on Git 2.36 or newer.
• Sessions sidebar saves opened and closed tabs as they change, rather than only on exit
• Agent shell commands in sandbox can access session files and logs

Added

• Auto suggests a routing tier and lets you switch with a shortcut or click
• Auto shows a quick feedback prompt after switching away to a manually selected model

Improved

• Direct plugin installs can now be enabled and disabled. One already recorded as disabled now stops loading; re-enable it with copilot plugin enable

Fixed

• Fix Auto tier selection to cycle correctly in /model and remove the unsupported Fast profile; a previously stored, exported, or resumed Fast preference now falls back to Balance instead of routing on it
• Run wrapped gh and git commands, such as timeout 60 gh ..., correctly in sandboxed sessions
• ACP sessions stay connected when clients pause reading large responses
• Gemini models no longer fail every request with 400 invalid request body when an MCP server exposes a tool whose schema puts a type or properties beside anyOf, such as a nullable discriminated union
• GitHub MCP tools connect correctly on first CLI startup after sign-in

Added

• MCP pre-registered OAuth clients honor configured oauthScopes.
• In local sessions, Esc Esc in an empty chat input takes back a prompt whose turn the model has not started answering and removes it from the conversation

Improved

• Sandboxed commands on supported Windows versions can access localhost when Local network access is on
• Autocomplete model IDs in /model and /model plan argument pickers

Fixed

• MCP config loading keeps valid workspace servers when sibling entries are invalid
• Delete old sessions succeeds when run directly in the CLI
• Claude requests above attachment size limits now recover automatically before sending.
• Listing shells shows running shells first, so a shell still running in the background is no longer hidden behind a long list of finished ones