CHANGELOG
August 27, 2026
Cosmos Week 35 Release Notes
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Improvements
- Teammates joining an existing workspace get a shorter onboarding that focuses on connecting their own accounts.
- 28 more vendor-hosted MCP servers are available, including Mixpanel, Pendo, BugSnag, Swagger, and Zephyr.
- Retired models no longer appear in model pickers, and Experts using a retired model switch to its replacement automatically.
- Cloud sessions start and resume faster.
- The Expert integrations picker shows a Connect button for Jira and Confluence when they aren't connected.
- File comments now open in a panel on the right.
- "Back to app" is now at the top of the Settings sidebar.
Bug fixes
- Resumed conversations keep their extended reasoning instead of losing it.
- Sent messages no longer stay stuck in the queue.
- File attachment details no longer appear inside your messages while they stream.
- Diffs now load for sessions that don't clone a repository.
- MCP reconnects now save correctly.
- Workers started by an Expert stay in the same Space and use the model the Expert specifies.
- Built-in Expert templates now scope Bitbucket triggers to the intended events; reapply existing Bitbucket Experts to stop unwanted sessions.
- Onboarding no longer shows a blank page after checkout.
- EU links no longer get stuck in a redirect loop.
- GitHub links on iOS no longer open an empty browser tab.