Version Packages (next)

packages/theme/CHANGELOG.md

@@ -1,5 +1,22 @@
 # @backstage/theme
 
+## 0.4.0-next.0
+
+### Minor Changes
+
+- 1fd38bc4141a: **MUI v5 Support:** Adding platform-wide support for MUI v5 allowing a transition phase for migrating central plugins & components over. We still support v4 instances & plugins by adding a
+
+  To allow the future support of plugins & components using MUI v5 you want to upgrade your `AppTheme`'s to using the `UnifiedThemeProvider`
+
+  ```diff
+       Provider: ({ children }) => (
+  -    <ThemeProvider theme={lightTheme}>
+  -      <CssBaseline>{children}</CssBaseline>
+  -    </ThemeProvider>
+  +    <UnifiedThemeProvider theme={builtinThemes.light} children={children} />
+       ),
+  ```
+
 ## 0.3.0
 
 ### Minor Changes

packages/theme/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@backstage/theme",
   "description": "material-ui theme for use with Backstage.",
-  "version": "0.3.0",
+  "version": "0.4.0-next.0",
   "publishConfig": {
     "access": "public",
     "main": "dist/index.esm.js",