v5.15.0

We'd like to offer a big thanks to the 6 contributors who made this release possible. Here are some highlights ✨:

• 🎁 Introduce aggregation (#5592) @flaviendelangle

  Premium users can now aggregate data in the grid.
  Extract information like sum, average, count, and others with a couple of clicks.

  summary-row.mp4

  To enable this feature, add experimentalFeatures={{ aggregation: true }}.
  Aggregation functions are customizable and they combine well with row grouping.
  See the documentation to explore everything it has to offer.

• 🚀 Introduce row pinning (#4863) @cherniavskii

  Pro users can now pin rows on top or bottom of the grid.

  row-pinning.mp4

  To do so, enable the feature with experimentalFeatures={{ rowPinning: true }} and provide the pinned rows data to the pinnedRows prop.
  For more details, see the documentation.

• 🌍 Add simplified Chinese (zh-CN) locale to pickers (#5584) @gamecss

• 📚 Documentation improvements

@mui/x-data-grid@v5.15.0 / @mui/x-data-grid-pro@v5.15.0 / @mui/x-data-grid-premium@v5.15.0

Changes

• [DataGrid] Add prop to keep modifications while processing props (#5309) @m4theushw
• [DataGrid] Fix container width change on React 18 (#5566) @m4theushw
• [DataGrid] Fix ellipsis style convention (#5587) @oliviertassinari
• [DataGridPro] Implement row pinning (#4863) @cherniavskii
• [DataGridPremium] Make aggregation public (#5592) @cherniavskii
• [l10n] Improve simplified Chinese (zh-CN) locale (#5584) @gamecss

@mui/x-date-pickers@v5.0.0-beta.3 / @mui/x-date-picker-pro@5.0.0-beta.3

Changes

• [l10n] Add simplified Chinese (zh-CN) locale (#5584) @gamecss

Docs

• [docs] Split docs page about rows (#5195) @flaviendelangle
• [docs] Add warning clarifications (#5399) @alexfauquette
• [docs] Correct slot CSS classes for Pro and Premium components (#5452) @alexfauquette
• [docs] Fix internal link to valueParser (#5450) @alexfauquette

Core

• [core] Upgrade monorepo (#5560) @m4theushw