--- title: v1.0.0-alpha.8 subtitle: Apr 17, 2025 description: v1.0.0-alpha.8 release notes. Apr 17, 2025. --- # v1.0.0-alpha.8 v1.0.0-alpha.8 release notes. Apr 17, 2025. ## Accordion - Recalculate panel dimensions on layout resize ([#1704](https://github.com/mui/base-ui/pull/1704)) - Rework animations and transitions ([#1601](https://github.com/mui/base-ui/pull/1601)) ## AlertDialog - **Breaking change:** Rename `data-has-nested-dialogs` to `data-nested-dialog-open` ([#1686](https://github.com/mui/base-ui/pull/1686)) - Fix `onOpenChange` types for `event`/`reason` passing ([#1721](https://github.com/mui/base-ui/pull/1721)) - Use consistent `inert` attr and map `[data-popup-open]` back to `open` ([#1650](https://github.com/mui/base-ui/pull/1650)) - Fix text selection & right-clicks ([#1702](https://github.com/mui/base-ui/pull/1702)) ## CheckboxGroup - Parent checkbox/nested demos ([#1610](https://github.com/mui/base-ui/pull/1610)) ## Collapsible - Fix ForwardedRef type of CollapsiblePanel ([#1595](https://github.com/mui/base-ui/pull/1595)) - Recalculate panel dimensions on layout resize ([#1704](https://github.com/mui/base-ui/pull/1704)) - Rework animations and transitions ([#1601](https://github.com/mui/base-ui/pull/1601)) ## Dialog - **Breaking change:** Rename `data-has-nested-dialogs` to `data-nested-dialog-open` ([#1686](https://github.com/mui/base-ui/pull/1686)) - **Breaking change:** Add new `trap-focus` value to `modal` prop. Dialogs with `modal=false` no longer trap focus. ([#1571](https://github.com/mui/base-ui/pull/1571)) - Fix `onOpenChange` types for `event`/`reason` passing ([#1721](https://github.com/mui/base-ui/pull/1721)) - Use consistent `inert` attr and map `[data-popup-open]` back to `open` ([#1650](https://github.com/mui/base-ui/pull/1650)) - Fix text selection & right-clicks ([#1702](https://github.com/mui/base-ui/pull/1702)) - Allow document to slide input into view on iOS when keyboard opens ([#1735](https://github.com/mui/base-ui/pull/1735)) ## Field - Fix forwarding of `name` and `disabled` props ([#1616](https://github.com/mui/base-ui/pull/1616)) ## Menu - Add missing item data attributes docs ([#1691](https://github.com/mui/base-ui/pull/1691)) - Fix `inert` prop compatibility in React \<19 ([#1618](https://github.com/mui/base-ui/pull/1618)) - Fix stuck highlight on submenu trigger when submenu opens with keyboard ([#1698](https://github.com/mui/base-ui/pull/1698)) - Fix `onOpenChange` types for `event`/`reason` passing ([#1721](https://github.com/mui/base-ui/pull/1721)) - Use consistent `inert` attr and map `[data-popup-open]` back to `open` ([#1650](https://github.com/mui/base-ui/pull/1650)) - Fix text selection & right-clicks ([#1702](https://github.com/mui/base-ui/pull/1702)) ## Meter - New Meter component ([#1435](https://github.com/mui/base-ui/pull/1435)) ## NumberField - Correct percentage parse handling ([#1676](https://github.com/mui/base-ui/pull/1676)) - New `snapOnStep` prop ([#1560](https://github.com/mui/base-ui/pull/1560)) ## Popover - **Breaking change:** Add new `trap-focus` value to `modal` prop ([#1571](https://github.com/mui/base-ui/pull/1571)) - Fix `inert` prop compatibility in React \<19 ([#1618](https://github.com/mui/base-ui/pull/1618)) - Fix `onOpenChange` types for `event`/`reason` passing ([#1721](https://github.com/mui/base-ui/pull/1721)) - Use consistent `inert` attr and map `[data-popup-open]` back to `open` ([#1650](https://github.com/mui/base-ui/pull/1650)) - Fix text selection & right-clicks ([#1702](https://github.com/mui/base-ui/pull/1702)) ## Progress - **Breaking change:** Add `Progress.Label` and `locale` prop. The `getAriaLabel` prop was removed as `` should be used to provide an accessible name. ([#1666](https://github.com/mui/base-ui/pull/1666)) ## Radio - Fix value forwarding and null handling ([#1697](https://github.com/mui/base-ui/pull/1697)) ## ScrollArea - **Breaking change:** Add `Content` part. It is now required to include the `` within `` part when the content is horizontally scrollable. ([#1607](https://github.com/mui/base-ui/pull/1607)) - Handle visibility change and nesting ([#1598](https://github.com/mui/base-ui/pull/1598)) - Correct thumb sizing with scrollbar margins ([#1606](https://github.com/mui/base-ui/pull/1606)) ## Select - **Breaking change:** Improve item highlight performance. The highlighted state is now removed. It's not possible to customize the `data-highlighted` attribute anymore. ([#1570](https://github.com/mui/base-ui/pull/1570)) - Avoid double commit on value change ([#1597](https://github.com/mui/base-ui/pull/1597)) - Reset `selectedIndex` when set to `null` ([#1596](https://github.com/mui/base-ui/pull/1596)) - Add missing item data attributes docs ([#1691](https://github.com/mui/base-ui/pull/1691)) - Fix `onOpenChange` types for `event`/`reason` passing ([#1721](https://github.com/mui/base-ui/pull/1721)) - Use consistent `inert` attr and map `[data-popup-open]` back to `open` ([#1650](https://github.com/mui/base-ui/pull/1650)) - Fix text selection & right-clicks ([#1702](https://github.com/mui/base-ui/pull/1702)) ## Slider - Correct thumb positioning when control has padding ([#1661](https://github.com/mui/base-ui/pull/1661)) - Prevent range slider thumbs from being dragged past each other ([#1612](https://github.com/mui/base-ui/pull/1612)) - Fix incorrect CSS position on vertical slider indicator ([#1599](https://github.com/mui/base-ui/pull/1599)) - Fix overlapping slider thumbs stuck at min or max ([#1732](https://github.com/mui/base-ui/pull/1732/)) ## Toast - New Toast component ([#1467](https://github.com/mui/base-ui/pull/1467)) ## Tooltip - Avoid re-rendering unrelated consumers ([#1677](https://github.com/mui/base-ui/pull/1677)) - Add `disabled` prop ([#1682](https://github.com/mui/base-ui/pull/1682)) - Fix `onOpenChange` types for `event`/`reason` passing ([#1721](https://github.com/mui/base-ui/pull/1721)) - Use consistent `inert` attr and map `[data-popup-open]` back to `open` ([#1650](https://github.com/mui/base-ui/pull/1650)) - Fix text selection & right-clicks ([#1702](https://github.com/mui/base-ui/pull/1702))