We'd like to offer a big thanks to the 14 contributors who made this release possible. Here are some highlights ✨:

• 📚 Updated "What's new" page giving more detailed overview of the latest new features and other highlights
• 📚 New collapsible column groups demo for the Data Grid component
• 📚 New Tree Item Customization documentation to learn how to use the new APIs to create custom Tree Items. The old APIs (props.ContentComponent and props.ContentProps) have been deprecated and will be removed in the new major version of the Tree View component.
• 🌍 Improve Japanese (ja-JP) locale on the Data Grid component
• 🐞 Bugfixes
• 📚 Other documentation improvements

Special thanks go out to the community contributors who have helped make this release possible: @k-rajat19, @kalyan90, @uma-neko, @vfbiby. Following are all team members who have contributed to this release: @alelthomas, @arminmeh, @arthurbalduini, @cherniavskii, @flaviendelangle, @JCQuintas, @MBilalShafi, @noraleonte, @oliviertassinari, @samuelsycamore, @siriwatknp.

Data Grid

@mui/x-data-grid@7.20.0

• [DataGrid] Add onColumnHeaderContextMenu event (#14734) @vfbiby
• [DataGrid] Avoid row spanning computation of outdated rows (#14902) @MBilalShafi
• [DataGrid] Fix scrollbar position not being updated after scrollToIndexes (#14888) @arminmeh
• [DataGrid] Pass rowId param to processRowUpdate (#14821) @k-rajat19
• [l10n] Improve Japanese (ja-JP) locale (#14870) @uma-neko

@mui/x-data-grid-pro@7.20.0

Same changes as in @mui/x-data-grid@7.20.0, plus:

• [DataGridPro] Fix wording on the rowSelectionPropagation JSDoc and doc section (#14907) @flaviendelangle

@mui/x-data-grid-premium@7.20.0

Same changes as in @mui/x-data-grid-pro@7.20.0.

Date and Time Pickers

@mui/x-date-pickers@7.20.0

• [pickers] Add PageUp and PageDown support for time components (#14812) @arthurbalduini
• [pickers] Fix regression on PickerValidDate (#14896) @flaviendelangle
• [pickers] Move the DateFieldInPickerProps interface to the DatePicker folder and rename it DatePickerFieldProps (same for time and date time) (#14828) @flaviendelangle

@mui/x-date-pickers-pro@7.20.0

Same changes as in @mui/x-date-pickers@7.20.0.

Charts

@mui/x-charts@7.20.0

No changes since @mui/x-charts@v7.19.0.

@mui/x-charts-pro@7.0.0-beta.4

Same changes as in @mui/x-charts@7.20.0.

Tree View

@mui/x-tree-view@7.20.0

• [TreeItem] Deprecate the ContentComponent and ContentProps props (#14908) @flaviendelangle
• [TreeView] Rework how items are being rendered in Rich Tree View components (#14749) @flaviendelangle

Docs

• [docs] Update "What's new" page (#14858) @cherniavskii
• [docs] Add collapsible column groups demo (#14818) @cherniavskii
• [docs] Add custom columns panel demo (#14825) @cherniavskii
• [docs] Capitalize all instances of "Data Grid" (#14884) @samuelsycamore
• [docs] Divide charts tooltip and highlighting pages (#14824) @JCQuintas
• [docs] Document the TreeItem2 component and the useTreeItem2 hook (#14551) @noraleonte
• [docs] Fix column pinning for "Disable detail panel content scroll" section (#14854 and #14885) @kalyan90
• [docs] Fix detail panel demo not working well with pinned columns (#14883) @cherniavskii
• [docs] New recipe of a read-only field (#14606) @flaviendelangle
• [docs] Change demo name example (#14822) @alelthomas

Core

• [core] Support @mui/utils v6 (#14867) @siriwatknp
• [code-infra] Remove deprecated data-mui-test in favour of data-testid (#14882) @JCQuintas
• [code-infra] Update renovate config and add a vitest group (#14856) @JCQuintas
• [test] Replace waitFor() with act() (#14851) @oliviertassinari
• [test] Restore "pnpm tc" CLI (#14852) @oliviertassinari