Fixed
- [2087](https://github.com/plotly/dash/pull/2087) Fix bug [#2086](https://github.com/plotly/dash/issues/2086) in which using id as a key within a component's id breaks the new callback context's `args_grouping` function.
- [2084](https://github.com/plotly/dash/pull/2084) In dash 2.5.0, a default viewport meta tag was added as recommended for mobile-optimized sites by [mdn](https://developer.mozilla.org/en-US/docs/Web/HTML/Viewport_meta_tag)
This feature can be disabled by providing an empty viewport meta tag. e.g. `app = Dash(meta_tags=[{"name": "viewport"}])`
- [2090](https://github.com/plotly/dash/pull/2090), [#2092](https://github.com/plotly/dash/pull/2092). Fixed bug where the `path` to the `pages_folder` was incorrect on Windows.
Removed
- [2087](https://github.com/plotly/dash/pull/2087) Removed the undocumented callback context `args_grouping_values` property which was incompatible with pattern-matching callbacks.