plotly/dash v4.3.0 on GitHub

Added

#3796 MCP: Add configure_mcp_server() to toggle which content the MCP server exposes (include_layout, include_callbacks, include_clientside_callbacks, include_pages, expose_callback_docstrings). Only the parameters explicitly passed are updated; omitted parameters retain their current value.
#3710 MCP: Framework utilities, types for interacting with layout
#3711 MCP: CallbackAdapter for representing callback-related data in MCP-friendly format
#3712 MCP: Resources for exposing app layout, components, and pages
#3731 MCP: Expose callbacks as Tools
#3747 MCP: Support pattern-matching callbacks in Tools
#3748 MCP: Format callback results for LLM consumption (rendered graphs, markdown tables)
#3749 MCP: get_dash_component Tool and callback execution
#3750 MCP: Server routes, mcp_enabled function decorator, and Streamable HTTP transport
#3766 MCP: Support background callbacks in Tools

#3796 MCP: Remove the mcp_expose_docstrings Dash() constructor argument; callback docstring exposure is now controlled via configure_mcp_server(expose_callback_docstrings=...).

#3817 Fix background callback context serialisation for non-dict request args on the FastAPI and Quart backends. Fixes #3816.
#3805 Fix FastAPI POST routes deadlock caused by middleware consuming request body. Fixes #3801.
#3813 Fix websockets using incorrect path when deployed behind a proxy
#3830 MCP: Respond to the Streamable HTTP GET (SSE) request with an empty event stream instead of 405 Method Not Allowed