Add vertical scrollbar with mouse drag support to the main conversation view
Switching to Autopilot mode no longer triggers unexpected permission prompts for tool, path, or URL access
copilot --continue from a session's saved directory now refreshes the saved branch and git context instead of leaving them stale
Kill command safety filter no longer rejects valid commands that contain shell redirection like kill -0 <PID> 2>/dev/null.
Sessions now resume in their saved working directory; pass -C to override. Flags whose values are relative paths (e.g. --attachment, --log-dir) resolve from the saved cwd.
Context window tier selection (default ~200K vs 1M tokens) is now enforced end-to-end, so picking a tier actually constrains compaction, truncation, and token display
AI Credits usage correctly displays after sessions using the Responses API
Rendering no longer stutters when using tmux on Cygwin or mintty
Slash command picker keeps (experimental) and (staff) labels orange when the row is selected
Reasoning tokens display as a parenthetical on output token count in the token usage summary
Sessions containing events with non-URL strings in URL/URI fields resume without a 'Session file is corrupted' error
Requests that time out due to an HTTP/2 upload stall automatically retry over HTTP/1.1
Sessions no longer fail to load on Windows when a process exits with a high-bit exit code (e.g., .NET unhandled exceptions)
Timeline entry connector color matches surrounding elements when expanded
Gray background bar no longer appears behind user messages on terminals without truecolor support
Status line command supports plain shell commands in addition to executable script paths
Automatically prune old process log files from ~/.copilot/logs/ at startup to prevent unbounded disk growth
Polish /statusline picker with cleaner item descriptions and better spacing
Picker checkboxes now use a single-cell ▣/▢ glyph for tighter, more consistent rows across pickers
Custom agents support opt-in deferred tool loading via deferred-tool-loading in agent frontmatter, enabling tool-search discovery for agents with large tool lists
Exit summary displays AI Credits label with correct spacing before the value
/restart and /update preserve the current session ID after restarting
Legacy nested oauth.clientId and oauth.callbackPort keys in MCP server configs are now migrated to the supported oauthClientId and auth.redirectPort keys instead of being silently dropped
MCP OAuth re-authentication honors the configured redirectPort
PowerShell division operator no longer triggers false 'Allow directory access' prompts on Windows
/compact accepts optional focus instructions to shape the compaction summary
General-purpose subagents use GPT-5.4 or GPT-5.5 when available
/usage shows quota progress bars for session and weekly limits
AI credits error messages updated with clearer language and a Manage budget link