docs: update the migration page

exampleSite/content/docs/migration/index.md

@@ -20,13 +20,28 @@ Track and review changes to the theme source files and documentation to help you
 
 <!--more-->
 
+> If you're not sure how to upgrade, see the [Upgradation]({{< ref "/docs/getting-started/upgradation" >}}) guide.
+
 ## v1.0
 
+> The older UI design are freezen on `v0` branch that only accepts bug fixes. You can keep using the older UI design with that branch.
+
+### Dependencies
+
+- Bumped Bootstrap from `v5.1` to `v5.2`.
+
+### UI
+
+- Removed the setting panel from top app bar.
+- Added the social links on top app bar.
+- Placed Docs navigation toggle on top app bar on small screen.
+
 ### Layouts
 
 - Removed `layouts/_default/archive.html`, please replace the `layout = archive` with `layout = archives` in front matter.
+- Renamed `layouts/partials/docs/catalog.html` to `layouts/partials/docs/nav.html`.
 
 ### SCSS
 
 - Deprecated `$variable-prefix`, please use `$prefix` instead.
-- Use Bootstrap built-in CSS variables instead of previous theme-defined CSS variables.
+- Use Bootstrap built-in CSS variables instead of theme-defined CSS variables.