Release 1.13.0-beta.4 as unstable

Author: GarboMuffin

docs/index.html

@@ -807,7 +807,7 @@ <h1 class="header">
       <!-- when there is no beta update, leave this hidden instead of removing so we don't lose the l10n string -->
       <div>
         <b class="beta-badge" l10n="beta" l10n-description="Followed by a version number eg. v1.7.2-beta.1 that is a link to learn more about the current beta release.">Beta version available:</b>
-        <a href="https://github.com/TurboWarp/desktop/releases/tag/v1.13.0-beta.3">v1.13.0 beta 3</a>
+        <a href="https://github.com/TurboWarp/desktop/releases/tag/v1.13.0-beta.4">v1.13.0 beta 4</a>
       </div>
     </div>
 

docs/version.json

@@ -1,5 +1,5 @@
 {
   "latest": "1.12.3",
-  "latest_unstable": "1.13.0-beta.3",
+  "latest_unstable": "1.13.0-beta.4",
   "oldest_safe": "1.8.0"
 }