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fix changelog #3886

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T4rk1n merged 1 commit into from
Jul 9, 2026
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fix changelog #3886

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2 changes: 1 addition & 1 deletion CHANGELOG.md
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Expand Up @@ -6,6 +6,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).

### Added
- [#3826](https://github.com/plotly/dash/pull/3826) WebSocket callback dispatch no longer lets long-lived callbacks limit the number of concurrent users. Async callbacks (including session-persistent ones) run directly on the connection event loop instead of occupying a worker thread, and synchronous callbacks run on a shared `ThreadPoolExecutor` whose size is configurable via the new `websocket_max_workers` argument to `Dash` (default `4`). A synchronous persistent (no-output) callback now warns at registration since it would tie up a worker thread.
- [#3852](https://github.com/plotly/dash/pull/3852) Added support for Plotly hoveranywhere and clickanywhere events in `dcc.Graph` by adding `xvals` and `yvals` to `hoverData` and `clickData`.

## Fixed
- [#3861](https://github.com/plotly/dash/issues/3861) Fix synchronous WebSocket callbacks not inheriting `ContextVar` values bound by ASGI middleware. `copy_context()` is now captured on the event-loop thread before the callback is submitted to the thread pool, instead of inside the worker thread where only default values were visible.
Expand All @@ -23,7 +24,6 @@ This project adheres to [Semantic Versioning](https://semver.org/).

## Added
- [#3796](https://github.com/plotly/dash/pull/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.
- [#3852](https://github.com/plotly/dash/pull/3852) Added support for Plotly hoveranywhere and clickanywhere events in `dcc.Graph` by adding `xvals` and `yvals` to `hoverData` and `clickData`.

## Changed
- [#3796](https://github.com/plotly/dash/pull/3796) MCP: Remove the `mcp_expose_docstrings` `Dash()` constructor argument; callback docstring exposure is now controlled via `configure_mcp_server(expose_callback_docstrings=...)`.
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