MUI Release Notes

Name: MUI
Brand: MUI

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12 release notes curated from 1 source by the Releasebot Team. Last updated: Jun 23, 2026

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12 release notes

Jun 23, 2026
Date parsed from source:
Jun 23, 2026

First seen by Releasebot:
Jun 23, 2026
Material UI by MUI

v9.1.2

Material UI ships updates across material, system, and docs, including an autocomplete fix for freeSolo Enter submissions, an ESM transitions import fix, and a Next.js 16 dev-mode script warning fix. It also refreshes tooling and stabilizes docs and tests.
A big thanks to the 5 contributors who made this release possible.

@mui/[email protected]

[autocomplete] Don't submit forms when committing freeSolo value with Enter key (#48679) @mj12albert

[transitions] Fix RTG import in ESM (#48645) @mj12albert

@mui/[email protected]

[InitColorSchemeScript] Fix script tag warning in Next.js 16 dev mode (#48671) @siriwatknp

Docs

Fix typos in release instructions (#48687) @brijeshb42

Update @mui/x-* packages to latest (#48661) @Janpot

Core

[code-infra] Convert leaf @mui/system .js+.d.ts pairs to TypeScript (part 1) (#48578) @Janpot

[code-infra] Bump to latest code-infra packages (#48672) @brijeshb42

[code-infra] Resolve remaining minimatch advisory (#48662) @Janpot

[code-infra] Bump nx to resolve minimatch advisory (#48658) @Janpot

[core] Drop @babel/* pnpm overrides (#48710) @Janpot

[docs-infra] Revert "Pin StackBlitz demo vite to v7 and plugin-react to v5" (#48709) @Janpot

[docs-infra] Fix code-block copy button broken on direct page load (#48653) @brijeshb42

[test] Stabilize Data Grid demo data in Argos screenshots (#48654) @LukasTy

All contributors of this release in alphabetical order: @brijeshb42, @Janpot, @LukasTy, @mj12albert, @siriwatknp
Original source
Jun 23, 2026
Date parsed from source:
Jun 23, 2026

First seen by Releasebot:
Jun 23, 2026
Material UI by MUI

v9.1.1

Material UI releases 9.1.1 with focused fixes across Autocomplete, ButtonBase, Transition, and styled-engine, plus updates to docs, testing, and core tooling. The release also improves build and security maintenance for a smoother developer experience.
A big thanks to the 9 contributors who made this release possible.

@mui/[email protected]

[Autocomplete] Update fullWidth prop documentation (#48626) @vipin8797

[ButtonBase] Fix focus ripple lingering after blur (#48650) @siriwatknp

[InitColorSchemeScript] Server-render in tests for React 19.3 (#48604) @Janpot

[Transition] Mount child in same commit when opening from unmounted (#48649) @siriwatknp

@mui/[email protected]

[styled-engine] Prevent enableCssLayer styles from being overridden by unlayered styles (#48603) @Janpot

Docs

Send SOURCE to Brevo on newsletter subscribe (#48633) @aemartos

fix TypeScript heading capitalization (#48619) @ifer47

Remove outdated security section (#48628) @oliviertassinari

[legal] Update EULA links on website (#48642) @rluzists1

Core

Update dependencies to resolve Dependabot security alerts (#48641) @Janpot

[core-docs] Pin StackBlitz demo vite to v7 and plugin-react to v5 (#48643) @Janpot

[code-infra] Port codebase to use tsgo (#48616) @brijeshb42

[docs-infra] Fix immutable cache headers for /_next/static assets (#48655) @brijeshb42

[docs-infra] Run link checker during docs build instead of as separate CI step (#48634) @Janpot

[docs-infra] Support turbopack for docs (#48569) @brijeshb42

[test] Cover docs landing-page composites with Argos (#48589) @LukasTy

All contributors of this release in alphabetical order: @aemartos, @brijeshb42, @ifer47, @Janpot, @LukasTy, @oliviertassinari, @rluzists1, @siriwatknp, @vipin8797
Original source
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Jun 11, 2026
Date parsed from source:
Jun 11, 2026

First seen by Releasebot:
Jun 11, 2026
Material UI by MUI

v9.1.1

Material UI releases version 9.1.1.

Version 9.1.1
Original source
Jun 8, 2026
Date parsed from source:
Jun 8, 2026

First seen by Releasebot:
May 17, 2026

Modified by Releasebot:
Jun 23, 2026
Material UI by MUI

v9.1.0

Material UI releases accessibility and usability upgrades, including prefers-reduced-motion support, better Windows High Contrast handling, and a broad set of fixes across autocomplete, select, tabs, dialogs, tooltips, transitions, and docs.
A big thanks to the 15 contributors who made this release possible. Here are some highlights ✨:

⚙️ Support for the prefers-reduced-motion setting.

♿️ Improved support for Windows High Contrast mode with the enhanceHighContrast theme wrapper.

@mui/[email protected]

[autocomplete] Enable clearing highlight when mouse leaves popup (#48354) @mj12albert

[autocomplete] Fix freeSolo controlled values cleared by initial null (#48611) @mj12albert

[autocomplete] Fix item removal when it receives focus from VoiceOver before using Backspace (#48572) @silviuaavram

[autocomplete] Fix resetHighlightOnMouseLeave JSdoc (#48536) @mj12albert

[autocomplete] Guard against null inputRef during unmount (#48617) @noam3127

[badge] Add aria-hidden to badge content and polish docs demos (#48471) @mj12albert

[badge] Use inline CSS variables for anchorOrigin/overlap positioning (#48549) @siriwatknp

[button] Fix customized flex gap styles (#48542) @mj12albert

[dialog] Fix unwanted DialogPaper focus ring (#48535) @mj12albert

[focus trap] Fix incorrect tab order when tabIndex >= 1 (#48546) @mj12albert

[progress] Show runtime errors only once (#48591) @silviuaavram

[select] Allow spacebar to select elements (#48615) @silviuaavram

[select] Support typeahead when closed (#48563) @mj12albert

[step button] Choose higher contrast ripple color for dark mode focus (#48612) @silviuaavram

[stepper] Include StepConnector inside Step element (#48492) @silviuaavram

[stepper] Proper support for vertical alternativeLabel (#48485) @silviuaavram

[tabs] Fix React 18 roving tabindex and dedupe invalid-value warning (#48605) @Janpot

[theme] Add HighContrast theme enhancer (#48319) @silviuaavram

[timeline item] Fix extra ::before spacing when TimelineOppositeContent is present (#46663) @tyalau

[tooltip] Prevent stuck-open tooltip when child becomes disabled (#48606) @Janpot

[transitions] Custom Transition component (#48325) @mj12albert

[transitions] Support prefers-reduced-motion (#48357) @mj12albert

@mui/[email protected]

[utils] Prevent prototype pollution in fastDeepAssign (#48580) @Janpot

Docs

[docs] Add function slotProps documentation (#48574) @mj12albert

[docs] Clarify styled-components version compatibility (#48533) @nightt5879

[docs] Fix broken URLs (#48520) @oliviertassinari

[docs] Fix invalid JSON in Zed MCP setup example (#48490) @pavan-sh

[docs] Mention release version for enhanceHighContrast (#48609) @silviuaavram

[docs] Remove outdated MUI X v8 notification (#48600) @cherniavskii

[docs] Remove redundant enhanceHighContrast information (#48632) @silviuaavram

[docs-infra] Decrease loaded bundle size on docs (#48584) @brijeshb42

[docs-infra] Drop multi-locale plumbing from API pages (#48370) @brijeshb42

[docs-infra] Fix Cookie banner heading (#48529) @oliviertassinari

[docs-infra] Infinitely cache all static assets (#48627) @brijeshb42

[docs-infra] Remove outdated noSEOadvantage entries (#48527) @oliviertassinari

[docs-infra] Restore build-only invariant throws via NEXT_RUNTIME guard (#48475) @Janpot

[docs-infra] Test HTML validation in broken links checker (#48088) @Janpot

[docs][icons] Fix Font Awesome Chip demo in dark mode (#48576) @siriwatknp

[docs][icons] Remove redundant font awesome demo (#48493) @ZeeshanTamboli

[docs][modal] Add nested modal guidance (#46507) @JakeSaterlay

[docs][stepper] Fix focus management in examples (#48494) @silviuaavram

Core

Eslint markdown (#48371) @Janpot

[agents] Fix some docs links (#48561) @silviuaavram

[blog] Copy editing improvement on v9 announcement blog posts (#48543) @joserodolfofreitas

[code-infra] Cleanup unused jss packages (#48590) @brijeshb42

[code-infra] Collapse canary workflows into nightly and nightly-cron (#48556) @Janpot

[code-infra] Convert @mui/private-theming to TypeScript (#48565) @Janpot

[code-infra] Convert @mui/styled-engine to TypeScript (#48544) @Janpot

[code-infra] Convert @mui/styled-engine-sc to TypeScript (#48577) @Janpot

[code-infra] Fix duplicate resource_class in test_regressions CI job (#48601) @LukasTy

[code-infra] Make @mui/internal-docs-utils compatible with TypeScript 6 (#48594) @Janpot

[code-infra] Migrate CircleCI jobs to Gen2 resource classes (#48593) @LukasTy

[code-infra] Parallelize visual regression screenshots (#48557) @Janpot

[code-infra] Run nightly-cron on v7.x (#48579) @Janpot

[core] Fix typescript@next typecheck (#48587) @Janpot

[pnpm] Add security settings to pnpm-workspace.yaml (#48582) @Janpot

[styled-engine-sc] Fix compatibility with Vite and Vitest (#48558) @mj12albert

[test] Add axe-core tests for mui-material (#48341) @siriwatknp

[test] Configure Tailwind CSS in the visual-regression app (#48575) @Janpot

All contributors of this release in alphabetical order: @brijeshb42, @cherniavskii, @JakeSaterlay, @Janpot, @joserodolfofreitas, @LukasTy, @mj12albert, @nightt5879, @noam3127, @oliviertassinari, @pavan-sh, @silviuaavram, @siriwatknp, @tyalau, @ZeeshanTamboli
Original source
May 7, 2026
Date parsed from source:
May 7, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v7.3.11

Material UI ships a maintenance release with autocomplete, button, checkbox, dialog, drawer, input, popper, and switch fixes, plus shadow DOM utilities and updated docs that announce v9.
A big thanks to the 5 contributors who made this release possible.

@mui/[email protected]

[autocomplete] Fix highlight sync and scroll preservation (#48350) @mj12albert

[autocomplete] Fix popper rendering issues (#48343) @mj12albert

[autocomplete] Improve highlight tracking and selection state (#48318) @mj12albert

[button] Fix startIcon alignment (#48339) @mj12albert

[button] Remove duplicated className entries (#48284) @silviuaavram

[checkbox] Set aria-checked=mixed when indeterminate (#48286) @mj12albert

[dialog][drawer][focus trap] Fix initial focus target (#48324) @mj12albert

[drawer] Fix transition jump (#48340) @mj12albert

[input] Fix layout shift with display: flex (#48359) @oliviertassinari

[inputs] Fix autofocus in SSR environment (#48307) @mj12albert

[popper] Persist positioning styles when popperOptions changes reference (#48302) @mj12albert

[switch] Fix incorrect role with slotProps.input (#48472) @mj12albert

[utils] Add shadow dom utils (#48309) @mj12albert

Docs

[docs] Update banner to announce v9 (#48299) @siriwatknp

[docs] Add v9 in the versions select in v7.mui.com (#48233) @alexfauquette

Core

[internal] Update some host-reference entries (#48225) @silviuaavram

All contributors of this release in alphabetical order: @alexfauquette, @mj12albert, @oliviertassinari, @silviuaavram, @siriwatknp
Original source
Similar to MUI with recent updates:
Apr 9, 2026
Date parsed from source:
Apr 9, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v9.0.0

Material UI releases v9.0, a stable major update that improves accessibility, boosts sx prop performance, and cleans up deprecated APIs. The release also includes pointer events, high contrast visibility improvements, and other fixes and internal updates.
🥳 We're excited to announce the stable release of Material UI v9.0! This major release focuses on accessibility improvements, sx prop performance, and cleanup of deprecated APIs. See the Material UI v9.0 announcement blog posts for more details. Also see the MUI v9 announcement blog posts for the broad ecosystem updates.

Check out the upgrade guide to see how you can move to this version.

@mui/[email protected]

[slider] Use pointer events instead of mouse events (#48164) @mj12albert

[switch] Add border to make it visible in high contrast mode (#48180) @silviuaavram

[transitions] Performance improvements & misc fixes (#48151) @mj12albert

Remove unnecessary overridesResolvers from styled components (#48204) @sai6855

Core

[code-infra] Setup workflow to publish internal packages (#47952) @brijeshb42

[core-docs] Add x-scheduler to MuiProductId type (#48185) @rita-codes

[docs-infra] Add scheduler to product switcher (#48208) @rita-codes

[internal] Prepare libraries for v9 stable release (#48206) @siriwatknp

🙇‍♂️ We'd like to extend a big thank you to everyone involved who made this major release possible.
Original source
Apr 8, 2026
Date parsed from source:
Apr 8, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v7.3.10

Material UI ships accessibility fixes, autocomplete and select improvements, Menubar docs, and several theme, slider, switch, and transitions updates, while also refreshing migration docs and other documentation across the release.
A big thanks to the 15 contributors who made this release possible. A few highlights ✨:

📖 Added the Menubar component page to the docs.

@mui/[email protected]

[alert][dialog] Accessibility improvements (#48161) @silviuaavram

[autocomplete] Add root slot (#47916) @GerardasB

[autocomplete] Fix helper text focusing input when clicked (#48162) @mj12albert

[autocomplete] Fix popup reopening on window focus regain with openOnFocus (#47914) @aman44444

[autocomplete] Optimize selected option lookup (#48027) @anchmelev

[autocomplete] Support full slots for clearIndicator and popupIndicator (#47913) @silviuaavram

[button-base] Fix native button detection (#47994) @mj12albert

[input] Fix high contrast cutoff on first character (#48160) @silviuaavram

[list item text][card header] Revert cleanup of duplicated CSS rules (#47938) @sai6855

[popper] Add missing classes export (#48033) @mj12albert

[select] Fix focus visible always set on menu item (#48022) @silviuaavram

[slider] Accept readonly array for the value prop (#47961) @pcorpet

[switch] Add border to make it visible in high contrast mode (#48210) @silviuaavram

[theme] Do not create channel tokens for custom colors when nativeColor is used (#48144) @ZeeshanTamboli

[transitions] Performance improvements & misc fixes (#48217) @mj12albert

Docs

[codemod] Add v7 migration docs for deprecated Autocomplete APIs and Autocomplete codemod (#47954) @ZeeshanTamboli

[menubar] Add Menubar component page (#47942) @siriwatknp

[progress] Label all demo components (#48168) @mj12albert

[system] Update styled API docs for easier understanding (#47969) @olivier-lxo

Fix the dark mode footer row shadow for the Data Grid on the advanced components page (#48152) @arminmeh

Fix MUI X redirects (#47917) @cherniavskii

Use direct palette vars in Tailwind v4 snippet (#47955) @Ahmad-Alaziz

Core

[blog] Blogpost for upcoming price changes for MUI X (#47820) @DanailH

[blog] Update the 2026 price changes blogpost (#47944) @DanailH

[code-infra] Add pkg-pr-new as dev dependency (#48023) @silviuaavram

[docs-infra] Update Release Instructions and Search Index v7 (#48109) @dav-is

All contributors of this release in alphabetical order: @Ahmad-Alaziz, @aman44444, @anchmelev, @arminmeh, @cherniavskii, @DanailH, @dav-is, @GerardasB, @mj12albert, @olivier-lxo, @pcorpet, @sai6855, @silviuaavram, @siriwatknp, @ZeeshanTamboli
Original source
Apr 2, 2026
Date parsed from source:
Apr 2, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v9.0.0-beta.1

Material UI ships a 9.0.0 beta release with breaking cleanup, accessibility and input fixes, a new nativeButton prop for ButtonBase, icon and grid updates, and broader docs and test improvements across the library.

A big thanks to the 11 contributors who made this release possible.

@mui/[email protected]

Breaking Changes

[grid] Remove 'column' and 'column-reverse' options from direction prop (#47564) @sai6855
[icons] Remove legacy *Outline icons (#48116) @mj12albert
[list-item-icon] Use theme spacing instead of hardcoded minWidth (#46597) @adiitxa

Changes

[all components] Fix slotProps.transition types (#48153) @mj12albert
[alert][dialog] Accessibility improvements (#48113) @silviuaavram
[autocomplete] Fix helper text focusing input when clicked (#48156) @mj12albert
[buttonbase] Add nativeButton prop (#47989) @mj12albert
[input] Fix high contrast cutoff on first character (#48150) @silviuaavram
[menu] Fix empty roving focus container (#48114) @mj12albert
[utils] Explicitly register roving tab items with parent (#48122) @mj12albert

Docs

Fix HTML validation errors (#48107) @Janpot
Fix duplicate IDs and HTML validation issues (#48095) @Janpot
Fix the dark mode footer row shadow for the Data Grid on the advanced components page (#48149) @arminmeh
Improve jsdom section (#48098) @oliviertassinari
Update "Deprecated APIs removed" section to h2 in "Upgrade to v9" docs (#48115) @ZeeshanTamboli
[progress] Label all demo components (#48143) @mj12albert
[docs-infra] Add x-scheduler to component API URL resolver (#48097) @rita-codes
[docs-infra] Resolve some redirects (#48165) @Janpot
[docs-infra] Update v9 Search Index (#48028) @dav-is

Core

[code-infra] Discover exports for bundle size report (#48170) @Janpot
[internal] Fix use of ellipsis (#48096) @oliviertassinari
[test] Add screenshot test for Virtualized Table (#47947) @mnajdova
[test] Remove componentsProp from describeConformance tests (#48142) @ZeeshanTamboli
[theme] Do not create channel tokens for custom colors when nativeColor is used (#47765) @ZeeshanTamboli

All contributors of this release in alphabetical order: @adiitxa, @arminmeh, @dav-is, @Janpot, @mj12albert, @mnajdova, @oliviertassinari, @rita-codes, @sai6855, @silviuaavram, @ZeeshanTamboli
Original source
Mar 26, 2026
Date parsed from source:
Mar 26, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v9.0.0-beta.0

Material UI ships a beta release for MUI Material with broad deprecation cleanup, removing old props and CSS classes across core components, plus a performance boost for the sx prop and updated codemod and upgrade guide links.

A big thanks to the 8 contributors who made this release possible.

@mui/[email protected]

Breaking Changes

[linear-progress] Remove deprecated CSS classes (#48068) @mj12albert
[list-item, list-item-text] Remove deprecated props (#48042) @siriwatknp
[button-group] Remove deprecated classes (#48043) @siriwatknp
[card] Remove deprecated CardHeader props (#47995) @silviuaavram
[checkbox][radio][switch] Remove deprecated inputProps and inputRef (#48059) @siriwatknp
[chip] Remove deprecated classes (#48046) @silviuaavram
[dialog][modal][drawer][swipeabledrawer] Remove deprecated props and classes (#48039) @silviuaavram
[divider] Remove deprecated CSS classes (#48075) @siriwatknp
[drawer] Remove deprecated CSS classes (#48077) @siriwatknp
[image-list-item-bar] Remove deprecated CSS classes (#48064) @siriwatknp
[inputs] Remove deprecated props & classes (#48071) @mj12albert
[material-ui] Remove unnecessary overridesResolvers from styled components (#48082) @ZeeshanTamboli
[material-ui][system] Remove deprecated system props from Box, Stack, Typography (#48072) @siriwatknp
[pagination-item] Remove deprecated CSS classes (#48076) @siriwatknp
[pagination-item] Remove deprecated props (#48038) @siriwatknp
[rating] Remove deprecated IconContainerComponent (#48019) @siriwatknp
[select] Remove deprecated CSS classes (#48065) @mj12albert
[slider] Remove deprecated CSS classes (#48074) @siriwatknp
[step-connector][step-content][step-label] Remove deprecated props and classes (#48058) @siriwatknp
[tabs][tab] Remove deprecated CSS classes (#48078) @siriwatknp
[table-pagination][table-sort-label] Remove deprecated props and classes (#48060) @siriwatknp
[toggle-button-group] Remove deprecated classes (#48061) @siriwatknp

Changes

[system] Improve performance when using sx prop (#44254) @romgrk

@mui/[email protected]

[codemod] Add missing codemod links in upgrade guide (#48069) @silviuaavram

Docs

Mention all breaking changes in changelog (#48091) @silviuaavram

Fix link to upgrade-to-v9 docs in release CHANGELOG (#48081) @ZeeshanTamboli

Core

Update browserslistrc (#48085) @silviuaavram

[code-infra] Prevent major version updates of bundler/framework packages in bundling fixtures (#48062) @Copilot
[code-infra][icons-material] Avoid material utils barrel in createSvgIcon (#48029) @anchmelev
[docs-infra] Migrate more leaf components to mui-docs (#48018) @brijeshb42

All contributors of this release in alphabetical order: @anchmelev, @brijeshb42, @Copilot, @mj12albert, @romgrk, @silviuaavram, @siriwatknp, @ZeeshanTamboli
Original source
Mar 25, 2026
Date parsed from source:
Mar 25, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v9.0.0-alpha.3

Material UI ships a new release with a Menubar component page, improved keyboard navigation and accessibility for Stepper, Tabs, and MenuList, plus Autocomplete updates, docs refinements, and core fixes.
A big thanks to the 10 contributors who made this release possible. Here are some highlights ✨:

📖 A new Menubar component page integrated with Base UI

♿️ Improved the Roving TabIndex keyboard navigation for the Stepper, Tabs and MenuList components.

@mui/[email protected]

Breaking Changes

[stepper][menulist][tabs] Improve accessibility (#47687) @silviuaavram

Changes

[autocomplete] Add root slot (#47852) @GerardasB

[autocomplete] Fix popup reopening on window focus regain with openOnFocus (#47790) @aman44444

[autocomplete] Support full slots for clearIndicator and popupIndicator (#47891) @silviuaavram

[material-ui] Partially revert "[material-ui] Clean up duplicated CSS rules (#47838)" (#47927) @sai6855

Docs

[docs][codemod] Add v7 migration docs for deprecated Autocomplete APIs and Autocomplete codemod (#47945) @ZeeshanTamboli

[docs] Update faq about vendor chunks (#47747) @Janpot

[docs] Use direct palette vars in Tailwind v4 snippet (#47940) @Ahmad-Alaziz

[docs][menubar] Add Menubar component page (#47616) @siriwatknp

Core

[core] Fix the release prepare steps (#47951) @silviuaavram

[core] Remove Joy UI code and docs (#47939) @mnajdova

[code-infra] Add previously missed export of themeCssVarsAugmentation (#47918) @brijeshb42

[docs-infra] Import font module for nextjs transpilation (#47935) @brijeshb42

[docs-infra] Migrate simpler modules from docs to mui-docs (#47897) @brijeshb42

[test] Fix detached anchorEl elements in tests (#47929) @Janpot

All contributors of this release in alphabetical order: @Ahmad-Alaziz, @aman44444, @brijeshb42, @GerardasB, @Janpot, @mnajdova, @sai6855, @silviuaavram, @siriwatknp, @ZeeshanTamboli
Original source
Mar 20, 2026
Date parsed from source:
Mar 20, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v9.0.0-alpha.4

Material UI ships an alpha release with major breaking changes, cleanup of deprecated props and CSS classes, plus fixes for buttons, sliders, selects, poppers, and text fields. It also refreshes docs, codemods, and core tooling for the v9 upgrade path.

A big thanks to the 11 contributors who made this release possible.

@mui/[email protected]

Breaking Changes

[accordion] Remove deprecated props (#47963) @silviuaavram

TransitionComponent

TransitionProps

[accordionsummary] Remove deprecated CSS class (#48006) @silviuaavram

contentGutters

[alert] Remove deprecated CSS classes (#48011) @silviuaavram

standardSuccess

standardInfo

standardWarning

standardError

outlinedSuccess

outlinedInfo

outlinedWarning

outlinedError

filledSuccess

filledInfo

filledWarning

filledError

[alert] Remove deprecated props (#47965) @silviuaavram

components

componentsProps

[autocomplete] Remove deprecated props (#47864) @ZeeshanTamboli

ChipProps

componentsProps

ListboxComponent

ListboxProps

PaperComponent

PopperComponent

renderTags

[avatar] Remove deprecated props (#47966) @silviuaavram

imgProps

[avatargroup] Remove deprecated props (#47968) @silviuaavram

componentsProps

[backdrop] Remove deprecated props (#47991) @silviuaavram

components

componentsProps

TransitionComponent

[badge] Remove deprecated props (#47993) @silviuaavram

components

componentsProps

[button] Remove deprecated CSS classes (#48012) @silviuaavram

Color variant classes: textInherit, outlinedPrimary, containedSecondary, etc.

Size classes: textSizeSmall, iconSizeMedium, etc.

[circularprogress] Remove deprecated CSS classes (#48014) @silviuaavram

circleDeterminate

circleIndeterminate

[divider] Remove deprecated prop (#48013) @atharva3333

light

[formcontrollabel] Remove deprecated props (#48032) @atharva3333

componentsProps

[menu] Remove deprecated props (#48021) @siriwatknp

MenuListProps

PaperProps

TransitionProps

[mobilestepper] Remove deprecated props (#48041) @siriwatknp

LinearProgressProps

[popover] Remove deprecated props (#48021) @siriwatknp

BackdropComponent

BackdropProps

PaperProps

TransitionComponent

TransitionProps

[popper] Remove deprecated props (#48020) @siriwatknp

components

componentsProps

[select] Remove deprecated props passed via MenuProps (#48021) @siriwatknp

MenuListProps

PaperProps

TransitionProps

[slider] Remove deprecated props (#47996) @siriwatknp

components

componentsProps

[speeddial] Remove deprecated props (#47998) @siriwatknp

TransitionComponent

TransitionProps

[speeddialaction] Remove deprecated props (#47998) @siriwatknp

FabProps

tooltipTitle

tooltipPlacement

tooltipOpen

TooltipClasses

[tabs] Remove deprecated props (#48017) @siriwatknp

ScrollButtonComponent

TabIndicatorProps

TabScrollButtonProps

slots.StartScrollButtonIcon

slots.EndScrollButtonIcon

[textfield] Remove deprecated props (#47878) @ZeeshanTamboli

InputProps

inputProps

SelectProps

InputLabelProps

FormHelperTextProps

[tooltip] Remove deprecated props (#47988) @siriwatknp

components

componentsProps

PopperComponent

PopperProps

TransitionComponent

TransitionProps

[typography] Remove deprecated prop (#47986) @siriwatknp

paragraph

[buttonbase] Key handlers should not run on a disabled non-native button (#48003) @mj12albert

[tablepagination] Format pagination numbers according to locale (#47803) @siriwatknp

[textfield] Use non-native label for <TextField select/> (#47958) @mj12albert

Check out the v9 upgrade guide.

Changes

[autocomplete] Optimize selected option lookup (#47953) @anchmelev

[buttonbase] Fix native button detection (#47985) @mj12albert

[inputbase] Fix test using removed InputProps on TextField (#48000) @siriwatknp

[popper] Add missing classes export (#48031) @mj12albert

[select] Fix focus visible always set on menu item (#47912) @silviuaavram

[slider] Fix focus visible styles incorrectly applied by pointer (#47894) @mj12albert

[slider] Accept readonly array for the value prop (#47936) @pcorpet

@mui/[email protected]

[codemod] Add slot key rename to tabs-props codemod and add to README (#48035) @siriwatknp

[codemod] Add card-header-props migration guide (#48005) @siriwatknp

Docs

[blog] Lowercase 2026-MUI-X-price-changes blog post URL (#47871) @Janpot

[docs] Wide docs layout (#47950) @noraleonte

[docs] Mention the list of props removed in upgrade guide (#48010) @silviuaavram

[docs] Update Autocomplete deprecated props removal migration guide docs (#47990) @ZeeshanTamboli

[docs-infra] Extract shared App component from _app into @mui/docs (#47933) @brijeshb42

[docs-infra] Expose global theme object (#47964) @Janpot

[docs][system] Update styled API docs for easier understanding (#47957) @olivier-lxo

Core

[code-infra] Add pkg-pr-new as dev dependency (#47992) @Janpot

[code-infra] Remove CI coverage collection and upload to Codecov (#47930) @Janpot

[core] Migrate to ESLint 10 (#47872) @brijeshb42

[core] Remove GridLegacy component (#47956) @siriwatknp

All contributors of this release in alphabetical order: @anchmelev, @atharva3333, @brijeshb42, @Janpot, @mj12albert, @noraleonte, @olivier-lxo, @pcorpet, @silviuaavram, @siriwatknp, @ZeeshanTamboli
Original source
Mar 5, 2026
Date parsed from source:
Mar 5, 2026

First seen by Releasebot:
May 17, 2026
Material UI by MUI

v9.0.0-alpha.2

Material UI ships alpha updates for Material UI and system, cleaning up duplicated CSS rules and refining container query sorting, while also moving shared components into the @mui/docs package and making a few docs and code-infra improvements.

A big thanks to the 4 contributors who made this release possible.

@mui/[email protected]

Clean up duplicated CSS rules (#47838) @sai6855

@mui/[email protected]

Refactor sortContainerQueries to define regex outside of sort function (#47817) @sai6855

Docs

Move shared components to @mui/docs package (#47672) @Janpot

Fix small typo in NumberField page (#47877) @arthur-plazanet

Core

[code-infra] Reduce paths for attw checks (#47896) @brijeshb42

[docs-infra] Run syncTeamMembers (#47900) @Janpot

All contributors of this release in alphabetical order: @arthur-plazanet, @brijeshb42, @Janpot, @sai6855
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MUI Release Notes

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v9.1.2

@mui/[email protected]

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v9.1.1

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v9.0.0-beta.0

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v9.0.0-alpha.3

@mui/[email protected]

Breaking Changes

Changes

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v9.0.0-alpha.4

Breaking Changes

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v9.0.0-alpha.2

@mui/[email protected]

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