Blocked image attachments now explain what to do — enable vision via the "Editor preview features" policy, switch to a vision-capable model, or try a different image — instead of showing a confusing error.
Options in --help output sort alphabetically, including options that have two long flags
Auth validation errors (e.g., VPN or IP allowlist failures) are now shown in the sign-in banner with guidance to check network access
Show fork-based pull requests in /pr and the branch PR badge
Resume remote sessions when the local and remote repository names differ only by case
Show the spill file path when read_bash output is too large
Include recent local sessions in /chronicle standup
Restore /responses WebSocket connections
Retry transient 401 auth failures in HMAC and OAuth modes
Press w in /diff to hide whitespace-only changes
Add deferTools option to MCP server config to keep a server's tools always available, even when tool search is enabled
Agent mode is tracked per session, so it no longer carries over when you create, clear, or switch sessions
Pressing Enter opens the highlighted issue details
Plan review menus work on strict OpenAI-compatible backends
Prevent Windows crashes when the native runtime addon loads in a corrupted host process heap
Recover from unreadable native document attachments by falling back to file-path uploads
Keep reverse search aligned in the input footer while you search command history
PostToolUse hook matchers (e.g. Edit|Write) are now honored instead of silently dropped, so formatters and linters run only after the tools they target
Improve reliability of OpenAI, Anthropic, and Azure OpenAI requests
Experimental: /rewind no longer requires git and restores only the files Copilot changed (leaving your own edits intact), with a conversation-only or conversation + files choice