mui · silviuaavram · Mar 20, 2026 · Mar 19, 2026 · Mar 19, 2026 · Mar 19, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,159 @@
 # [Versions](https://mui.com/versions/)
 
+## 9.0.0-alpha.4
+
+<!-- generated comparing v9.0.0-alpha.3..master -->
+
+_Mar 20, 2026_
+
+A big thanks to the 11 contributors who made this release possible.
+
+### `@mui/material@9.0.0-alpha.4`
+
+#### 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](https://mui.com/material-ui/migration/upgrade-to-v9/).
+
+#### 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/codemod@9.0.0-alpha.4`
+
+- [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
+
 ## 9.0.0-alpha.3
 
 <!-- generated comparing v9.0.0-alpha.2..master -->

diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/monorepo",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "private": true,
   "scripts": {
     "preinstall": "npx only-allow pnpm",

diff --git a/packages-internal/scripts/package.json b/packages-internal/scripts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/internal-scripts",
-  "version": "3.0.4",
+  "version": "3.0.5",
   "author": "MUI Team",
   "description": "Utilities supporting MUI libraries build and docs generation. This is an internal package not meant for general use.",
   "exports": {

diff --git a/packages/markdown/package.json b/packages/markdown/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/internal-markdown",
-  "version": "3.0.3",
+  "version": "3.0.4",
   "author": "MUI Team",
   "description": "MUI markdown parser. This is an internal package not meant for general use.",
   "main": "./index.mjs",

diff --git a/packages/mui-codemod/package.json b/packages/mui-codemod/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/codemod",
-  "version": "9.0.0-alpha.1",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "Codemod scripts for Material UI.",
   "bin": "./src/codemod.js",

diff --git a/packages/mui-core-downloads-tracker/package.json b/packages/mui-core-downloads-tracker/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/core-downloads-tracker",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "Internal package to track number of downloads of our design system libraries.",
   "files": [],

diff --git a/packages/mui-docs/package.json b/packages/mui-docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/docs",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "MUI Docs - Documentation building blocks.",
   "keywords": [
@@ -58,11 +58,11 @@
     "@mui/icons-material": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^9.0.0 || ^9.0.0-alpha",
     "@mui/material": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^9.0.0 || ^9.0.0-alpha",
     "@mui/material-nextjs": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^9.0.0 || ^9.0.0-alpha",
+    "@mui/stylis-plugin-rtl": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^9.0.0 || ^9.0.0-alpha",
     "@mui/system": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^9.0.0 || ^9.0.0-alpha",
     "@mui/utils": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^9.0.0 || ^9.0.0-alpha",
     "@types/react": "^17.0.0 || ^18.0.0 || ^19.0.0",
     "@types/stylis": "^4.2.7",
-    "@mui/stylis-plugin-rtl": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^9.0.0 || ^9.0.0-alpha",
     "chai": "^6.0.1",
     "csstype": "^3.1.3",
     "next": "^13.5.1 || ^14 || ^15.0.0 || ^16.0.0",

diff --git a/packages/mui-icons-material/package.json b/packages/mui-icons-material/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/icons-material",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "Material Design icons distributed as SVG React components.",
   "main": "./src/index.js",

diff --git a/packages/mui-lab/package.json b/packages/mui-lab/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@mui/lab",
   "//": "version should be 'alpha' at all time",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "Laboratory for new Material UI modules.",
   "keywords": [

diff --git a/packages/mui-material-pigment-css/package.json b/packages/mui-material-pigment-css/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/material-pigment-css",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "A wrapper over Pigment CSS that provides the same styled and theming APIs as Material UI.",
   "keywords": [

diff --git a/packages/mui-material/package.json b/packages/mui-material/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/material",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "Material UI is an open-source React component library that implements Google's Material Design. It's comprehensive and can be used in production out of the box.",
   "keywords": [

diff --git a/packages/mui-private-theming/package.json b/packages/mui-private-theming/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/private-theming",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "Private - The React theme context to be shared between `@mui/styles` and `@mui/material`.",
   "keywords": [

diff --git a/packages/mui-stylis-plugin-rtl/package.json b/packages/mui-stylis-plugin-rtl/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/stylis-plugin-rtl",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "A plugin for Material UI that provides RTL (right-to-left) support.",
   "keywords": [

diff --git a/packages/mui-system/package.json b/packages/mui-system/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/system",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "MUI System is a set of CSS utilities to help you build custom designs more efficiently. It makes it possible to rapidly lay out custom designs.",
   "keywords": [

diff --git a/packages/mui-utils/package.json b/packages/mui-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mui/utils",
-  "version": "9.0.0-alpha.3",
+  "version": "9.0.0-alpha.4",
   "author": "MUI Team",
   "description": "Utility functions for React components.",
   "keywords": [