Copilot CLI v1.0.12: MCP Fixes & Session Improvements

TL;DR

• MCP servers now load correctly from git root and persist across /clear commands
• Plugin hooks gain CLAUDE_PROJECT_DIR and CLAUDE_PLUGIN_DATA environment variables
• Terminal rendering fixes: Windows clipboard, emoji selection, OSC 8 hyperlinks, and high-volume output handling
• Session management improvements: auto-generated names, custom agent restoration, stale session cleanup fixes

New

• Plugin hook environment variables — hooks now receive CLAUDE_PROJECT_DIR and CLAUDE_PLUGIN_DATA, plus {{project_dir}} and {{plugin_data_dir}} template variable support
• Model picker full-screen view — reasoning effort adjustment via ← / → arrow keys inline
• /session rename auto-generation — generates session name from conversation history when called without arguments
• /allow-all subcommands — on, off, and show subcommands for granular allow-all mode control
• Reasoning effort display — model header now shows active reasoning level (e.g., "(high)") next to model name
• Ctrl+Y research report shortcut — opens most recent research report in plan mode when no plan exists

Fixed

• MCP server startup from git root — .mcp.json servers now start correctly when working directory is the git root
• Workspace MCP server loading — workspace MCP servers are now correctly loaded and visible to the agent
• /clear preserves MCP servers — MCP servers persist in new sessions after /clear
• Windows clipboard shadowing — clipboard copy works correctly when non-system clip.exe shadows system one in PATH
• /diff intra-line highlighting — /diff view correctly renders all lines when intra-line highlighting is present
• Windows OneDrive trusted folder prompts — no longer appear incorrectly on OneDrive paths and case-insensitive filesystems
• PowerShell flag arguments — /flag arguments (e.g., /all, /enum-devices) no longer mistakenly treated as file paths
• OSC 8 hyperlinks — now clickable in VS Code terminals
• Emoji selection in terminals — emoji characters are selected and highlighted correctly in terminal text selection
• Terminal resize scroll position — scroll position stays in place when terminal is resized
• High-volume shell output — CLI no longer crashes with out-of-memory errors when running shell commands with high-volume output
• Autopilot cancellation hang — pressing Escape multiple times during cancellation no longer leaves session stuck
• Stale session cleanup — sessions with active work are no longer cleaned up by the stale session reaper
• Custom agent restoration — resume session restores the previously selected custom agent
• /yolo path permissions — permissions persist after using /clear to start a new session
• @ file picker .git filtering — no longer shows .git directory contents
• User prompt immediate display — user prompt appears in conversation immediately after pressing Enter
• OTEL trace clutter — hook executions now recorded as span events instead of child spans

Changed

• Alt screen always enabled — removed --alt-screen flag and alt_screen setting; alt screen is now always enabled
• Config file sources — now reads .claude/settings.json and .claude/settings.local.json as additional repo config sources
• Status line payload — includes session_name field alongside session_id

Update with: npm install -g @github/copilot-cli@latest or check the release page for platform-specific instructions.

Source: Copilot CLI