2026-02-19
- Improve quick help accessibility: screen reader-friendly tab labels, reordered layout, and grouped
help commandsoutput - Hide custom agents with
user-invocable: falsefrom the/agentspicker - Config file syntax errors now show a warning instead of silently crashing
- Sign Windows native prebuilds with Authenticode to prevent antivirus quarantine of native modules
- Allow
/reset-allowed-toolsto run during agent execution - MCP servers with invalid tool schemas no longer lose all tools
- Alt-screen mode no longer consumes increasing memory over long sessions
- Add
/mcp reloadcommand to reload MCP configuration - Skills support
disable-model-invocationfrontmatter field - /fleet orchestrator validates subagent work
- Deprecate gpt-5 model
- Windows slash flags (e.g.,
xcopy /E /I) are no longer treated as file paths - Show a warning in the timeline when skills fail to load at startup, with a prompt to run /skills for details
- Eliminate banner character flash on startup when banner is disabled
- Edit plan in terminal editor with ctrl+y
- Terminal editor is now supported on Windows
- Configure LSP server request timeouts in lsp.json
- Add
/updatecommand to view changelog and update instructions - Add exit_plan_mode tool with plan approval dialog for reviewing and accepting plans
- Support ~/.copilot/instructions/*.instructions.md files for user-level instructions across all repositories
- Add double-click word and triple-click line selection in alt-screen text selection
- Edit the prompt in your preferred terminal editor with ctrl+x ctrl+e
- Prevents spurious error messages from appearing in terminal on Windows
- Typing
?in an AskUser prompt no longer triggers the quick help overlay - Improve SQL tool timeline entries
- Reduce memory usage in alt-screen mode during long sessions
- /fleet mode dispatches more subagents in parallel for faster execution
- Instructions picker opens as a full-screen alt-screen view when alt-screen mode is enabled
- Skills picker opens as a full-screen alt-screen view when alt-screen mode is enabled
- Command files no longer require YAML frontmatter — plain markdown files work with name and description derived automatically
- Session picker opens instantly without a loading flash when multiple sessions exist
- Mouse event coordinate fragments no longer appear in input field
- Add cross-session memory: ask about past work, files, and PRs across sessions (experimental)
- Add
--bash-envflag to source BASH_ENV in shell sessions - Restore
ctrl+x /as alternate shortcut to run commands while preserving input - /clear preserves agent mode (autopilot, plan, or interactive)
- MCP error messages include the server name
- Text selection in timeline no longer spills into prompt area when dragging