master
[code-infra] Remove React import requirement for jsx (#47146)
[code-infra] Enable undefined addition to optional properties (#47750)
[material-ui] Merge `CssVarsProvider` into `ThemeProvider` (#43115)
[code-infra] Vitest test migration (#44325)
Bump prettier to v3.9.5 (#48808)
[code-infra] Update package layout for better ESM support (#43264)
[core] Rename directories to match the new package names (#28185)
[core] Remove GridLegacy component (#47956)
[system] Fix toolbar media query mixin getting merged in wrong order (#32713)
[core] Remove unnecessary `spacing` parameter from `createMixins` method (#32690)
[transitions] Support `prefers-reduced-motion` (#48357)
[material-ui][system] Use direct import (#40851)
[material-ui] Replace JS color manipulation with native color syntax (#43942)
[TypeScript] Add CSS vars type augmentation for Material UI (#33211)
[core] Replace Material-UI with MUI (#28243)
[button] Remove deprecated classes (#48012)
[theme] Do not create channel tokens for custom colors when `nativeColor` is used (#47765)
Bump eslint-plugin-import to ^2.28.0 (#38226)
[core] Prepend "use-client" directive + add docs and examples for using MUI libraries with Next.js App Router (#37656)
[theme] Add HighContrast theme enhancer (#48319)
[material-ui][Paper] Fix wrong background-image on Paper when elevation is 0 (#43723)
[material-ui] Refine `extendTheme` and `CssVarsProvider` API (#42839)
[material-ui] Fix getOverlayAlpha type (#41995)
[system] Introduce theme scope for using multiple design systems (#36664)
[system] Enable configuring the `sx` prop in the `theme` (#35150)
[code-infra] Move MuiError babel macro to babel plugin (#43904)
[material-ui] Support `CssVarsTheme` in `responsiveFontSizes` return type (#42786)
[typography] Fix `h4` variant when using `responsiveFontSizes()` (#48314)
[Slider][material-ui] Make it zero-runtime compatible (#41201)
[code-infra] Port codebase to use tsgo (#48616)
[core] Fix some issues reported by eslint-plugin-react-compiler (#43117)
[code-infra] Fix type shadowing (#48389)
[code-infra] a few fixes uncovered during ESM updates (#45031)
[Fab] Add z-index (#30842)