GitHub Copilot 1.0.16 download

What's new in v1.0.16

Highlights
- Selecting multiple projects when starting a new chat now starts a single orchestration chat across those repositories, with the sidebar grouping the spawned sessions together.
- Right-click a sidebar session to create a nested session or detach it.
- Mentioning a session with & in the composer now shows a removable pill, and pasted session IDs are automatically recognized the same way.
- When archiving or deleting a session with nested sessions, you're now prompted to also archive or delete them so they don't become orphaned.
- Added a copy button to the slash command and additional instructions sections of the system prompt detail dialog.

Added
- Added a copy button to the slash command and additional instructions sections of the system prompt detail dialog.
- Mentioning a session with & in the composer now shows a removable pill, and pasted session IDs are automatically recognized and shown the same way.
- Right-click a sidebar session to create a nested session or detach the session.
- Selecting multiple projects when starting a new chat now starts a single orchestration chat across those repositories, and the sidebar groups the sessions it spawns together.
- When archiving or deleting a session that has nested sessions, you're now prompted to also archive or delete them, so they no longer become orphaned in the sidebar.

Changed
- Refined the look of file attachment chips in the composer with rounded pill shapes and clearer, more consistent file type icons.
- The account chip in the sidebar now shows the account a project actually bills against, so opening a session switches it to the right account instead of showing your default.
- The agent merge status in the conversation now updates at minute-level granularity instead of ticking every second.
- Updated the theme search placeholder and label to say "palettes" instead of "themes".
- Updated v3 diff notices for files without textual differences to use a muted, padded treatment.

Fixed
- Fixed a crash in the message composer that could occur when replacing its content.
- Fixed a crash that could occur in the message composer's formatting toolbar and when using select all with certain keyboard input.
- Fixed a crash that could occur when hovering table cells while editing a markdown table.
- Fixed a slight vertical misalignment between typed text and the placeholder in the message composer.
- Fixed connected Copilot Free accounts showing as "Copilot Pro" in Accounts settings.
- Fixed git operations failing on Linux AppImage builds after the app self-updated and restarted.
- Fixed inconsistent spacing between labels and inputs in project settings
- Fixed MCP server connection status getting stuck on "authenticating" for third-party OAuth servers even when the server was actually connected and its tools were working.
- Fixed screen readers announcing incomplete or missing information for the automation name and breadcrumb navigation in the automation details view.
- Fixed sessions using your own model (BYOK) getting silently switched to Auto when you hit a Copilot rate limit.
- Fixed tab strips that overflow now clip cleanly at the panel edge with a subtle fade, instead of cutting off scrolled tabs mid-label.
- Fixed the "Browse catalog" button in model provider settings not showing a tooltip on hover
- Fixed the Agent Merge status note so it no longer says "active" after Agent Merge has been turned off.
- Fixed the conversation view occasionally drifting away from the bottom as new messages arrived while scrolled to the end.
- Fixed the Hours and Day of week menu buttons in workflow scheduling so screen readers announce the full list of selected values, not just a summary count.
- Fixed the sidebar showing no projects when one project failed to load, so healthy projects now still appear even if another project has an error.
- Fixed third-party MCP servers requiring sign-in (like Slack) getting stuck on a failed status with no way to authenticate; they now show a Sign in button in MCP settings.
- Screen readers now announce the correct label and description for each control in the New automation dialog, and its field labels are clickable.
- Screen readers now announce when the composer mode changes via keyboard shortcut or slash command.