Chainlit

Added

- `cl.on_app_startup` and `cl.on_app_shutdown`
- Configuration option for chat history default open state
- Configuration option for login page background image and filter
- Most commonly customized ui elements now have specific IDs

Fixed

- App should no longer flicker on load
- Attachments icons for microsoft files should now correctly display
- Pasting should no longer be duplicated

Added

- Add thinking token support to langchain callback handler

Fixed

- Pasting issues in the chat input
- Rename nl-NL.json to nl.json

Fixed

- Mcp button should not be displayed if `on_mcp_connect` is not defined

Added

- Canvas mode for the element side bar if title == `canvas`
- Allow list for MCP stdio commands
- `key` parameter to `ElementSidebar.set_elements` method

Fixed

- Literal AI should now correctly store custom elements props
- Element should correctly load from azure storage
- Plotly elements should now take full width

Added

- Hide commands button if all commands are specified as button.

Fixed

- Chat profiles tooltip should no longer freeze is hover rapidly

Added

- The user message auto scroll behavior is now a feature `config.features.user_message_autoscroll`
- Stdio MCP commands now support environment variables

Fixed

- Submounting a Chainlit app to a FastAPI app with a root path should now work