chore(deps): update dependency @mui/x-tree-view to v9.1.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@mui/x-tree-view (source)	9.0.4 → 9.1.0

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Release Notes

mui/mui-x (@​mui/x-tree-view)

v9.1.0

Compare Source

May 8, 2026

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

• ⚡️ Add a WebGL renderer to the Scatter chart, and apply the same WebGL performance patterns to the candlestick and heatmap [Premium]
• 🐞 Bugfixes
• 📚 Documentation improvements

Special thanks go out to these community members for their valuable contributions:
@​Anexus5919, @​gaetanodanelli, @​imazizbohra, @​mustafajw07

The following team members contributed to this release:
@​alexfauquette, @​brijeshb42, @​flaviendelangle, @​JCQuintas, @​LukasTy, @​mapache-salvaje, @​MBilalShafi, @​michelengelen, @​oliviertassinari, @​rita-codes

Data Grid

@mui/x-data-grid@9.1.0

• [DataGrid] Fix accessibility violation in detail panel toggle column header (#​22178) @​michelengelen
• [DataGrid] Fix active filter detection for array values (#​22340) @​MBilalShafi
• [DataGrid] Fix crash when grouping/tree-data values match Object.prototype property names (#​22312) @​LukasTy
• [DataGrid] Position overlays below top pinned rows (#​22341) @​MBilalShafi
• [l10n] Improve Italian (it-IT) locale (#​22290) @​gaetanodanelli

@mui/x-data-grid-pro@9.1.0

Same changes as in @mui/x-data-grid@9.1.0, plus:

• [DataGridPro] Fix column unpin restoring stale position after reorder (#​22250) @​michelengelen

@mui/x-data-grid-premium@9.1.0

Same changes as in @mui/x-data-grid-pro@9.1.0, plus:

• [DataGridPremium] Fix aggregation column header title truncation without ellipsis (#​22248) @​michelengelen

Date and Time Pickers

@mui/x-date-pickers@9.1.0

• [pickers] Fix duplicate hour label in MultiSectionDigitalClock on DST day (#​22110) @​LukasTy
• [l10n] Improve Italian (it-IT) locale (#​22290) @​gaetanodanelli

@mui/x-date-pickers-pro@9.1.0

Same changes as in @mui/x-date-pickers@9.1.0.

Charts

@mui/x-charts@9.1.0

• [charts] Add ChartsAxisHighlightValue component (#​21803) @​Copilot
• [charts] Create ChartsRadialAxisHighlight (#​22241) @​alexfauquette
• [charts] Remove useless extends (#​22313) @​alexfauquette
• [charts] Use PolarAxisConfig in polar plugin internals (#​22315) @​alexfauquette

@mui/x-charts-pro@9.1.0

Same changes as in @mui/x-charts@9.1.0.

@mui/x-charts-premium@9.1.0

Same changes as in @mui/x-charts-pro@9.1.0, plus:

• [charts-premium] Add WebGL renderer to ScatterChartPremium (#​22157) @​JCQuintas
• [charts-premium] Add highlight to the RadialLineChart (#​22156) @​alexfauquette
• [charts-premium] Apply WebGL perf patterns to candlestick + heatmap (#​22223) @​JCQuintas
• [charts-premium] Introduce the RadialBarChart (#​22268) @​alexfauquette

Tree View

@mui/x-tree-view@9.1.0

• [tree view] Fix stale Tree View apiRef after keyed remount (#​22342) @​MBilalShafi

@mui/x-tree-view-pro@9.1.0

Same changes as in @mui/x-tree-view@9.1.0.

Scheduler

@mui/x-scheduler@9.0.0-alpha.5

• [scheduler] Make EventItem interactive by integrating button props for keyboard accessibility (#​22160) @​mustafajw07
• [scheduler] Migrate color switch to Base UI ToggleGroup (#​22254) @​flaviendelangle
• [scheduler] Rename Scheduler headless packages (#​22273) @​rita-codes
• [scheduler] Use TreeView for the resource sidebar (#​22261) @​flaviendelangle
• [scheduler] Use fieldset/legend instead of headings for form sections in the event dialog (#​22095) @​Anexus5919
• [scheduler] Added position: relative for consistent layout (#​22284) @​mustafajw07
• [l10n] Improve Italian (it-IT) locale (#​22290) @​gaetanodanelli

@mui/x-scheduler-premium@9.0.0-alpha.5

Same changes as in @mui/x-scheduler@9.0.0-alpha.5, plus:

• [scheduler] Replace per-view headers with a generic EventTimelinePremiumHeader in the EventTimeline (#​22222) @​rita-codes

Codemod

@mui/x-codemod@9.1.0

Internal changes.

Docs

• [docs] Migrate FlightPicker overview demo to v9 slotProps shape (#​22272) @​LukasTy
• [docs] Standardize Scheduler docs style and formatting (#​22161) @​mapache-salvaje
• [docs] Add feedback form to the scheduler docs (#​22237) @​rita-codes
• [docs] Fix GridToolbarCustom demo crash in DataGrid (#​21950) @​MBilalShafi
• [docs] Do not resolve axes in charts (#​22307) @​alexfauquette
• [docs] Fix no longer valid link (#​22371) @​LukasTy
• [docs] Replace broken CodeSandbox iframes in migration guides (#​22352) @​LukasTy

Core

• [code-infra] Bump browser testTimeout to absorb React 19 slowness (#​22236) @​LukasTy
• [code-infra] Use vale rules from code-infra package (#​22256) @​brijeshb42
• [code-infra] Fix broken valelint and docs build (#​22362) @​LukasTy
• [internal] Prepare renaming LICENSE file to LICENSE.md (#​22055) @​imazizbohra
• [internal] Remove outdated .woff files (#​22286) @​oliviertassinari
• [internal] Replace Codspeed with @mui/internal-benchmark for charts (#​22243) @​JCQuintas

Miscellaneous

• [internal-gestures] Add passive option to TurnWheelGesture (#​22349) @​JCQuintas
• [internal-gestures] Enforce pointer-type filter in ShadowRoot branch (#​22327) @​JCQuintas
• [internal-gestures] Improve passive event listener handling (#​22329) @​JCQuintas
• [internal-gestures] Inline wheel-delta clamp per axis (#​22331) @​JCQuintas
• [internal-gestures] Return read-only pointer map without copy (#​22330) @​JCQuintas
• [internal-gestures] Track multi-tap reset timeout to prevent leak (#​22326) @​JCQuintas

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