Add 8.4 docs

apps/frontpage/content/releases/8.4.md

@@ -0,0 +1,20 @@
+---
+title: 'Storybook 8.4 - October 2024'
+---
+
+Storybook 8.4 comes with a ton of exciting new features designed to give you the best experience developing, testing, and debugging tests in the browser!
+
+▶️ Unified UI for component testing
+5️⃣ Svelte 5 and Svelte CSF support
+⚛️ React Native Storybook 8 release
+🏷️ Tags-based filtering to organize your Storybook
+🫧 Dependency cleanup to reduce install footprint
+💯 Hundreds more improvements
+
+Browse the [changelogs](https://github.com/storybookjs/storybook/blob/next/CHANGELOG.md) for the full list of changes.
+
+---
+
+There are no breaking changes, but you can refer to our
+[Migration guide](https://storybook.js.org/docs/migration-guide) to upgrade from
+pre-8.0 of Storybook.

packages/utils/src/docs-versions.tsx

@@ -28,16 +28,16 @@ export interface DocsVersion {
  **/
 export const docsVersions: DocsVersion[] = [
   {
-    label: 'Version 8.3',
-    id: '8.3',
+    label: 'Version 8.4',
+    id: '8.4',
     branch: 'main',
   },
-  // {
-  //   label: 'Version 8.4 (beta)',
-  //   id: '8.4',
-  //   branch: 'next',
-  //   preRelease: true,
-  // },
+  {
+    label: 'Version 8.5 (alpha)',
+    id: '8.5',
+    branch: 'next',
+    preRelease: true,
+  },
   {
     label: 'Version 7',
     id: '7.6',