Update release notes

_locales/en/messages.json

@@ -12024,5 +12024,9 @@
   "icu:WhatsNew__8.26--0": {
     "messageformat": "Finding yourself can be a lifelong process, but now you'll appear as “You” in the group member search to make it a little easier.",
     "description": "Release notes for 8.26"
+  },
+  "icu:WhatsNew__8.27--0": {
+    "messageformat": "This update introduces more granular settings to give you significantly more control over your Signal notifications. Now you can choose what appears on the app badge, adjust notification preferences for muted threads, and more! We also added a convenient button to restore the default notification settings if you ever make so many changes that you don't even know how to get ahold of yourself anymore.",
+    "description": "Release notes for 8.27"
   }
 }

ts/components/WhatsNewModal.dom.tsx

@@ -29,7 +29,7 @@ export function WhatsNewModal({
     // oxlint-disable-next-line react/purity
     date: new Date(window.getBuildCreation?.() || Date.now()),
     version: window.getVersion?.(),
-    features: [<I18n i18n={i18n} id="icu:WhatsNew__8.26--0" />],
+    features: [<I18n i18n={i18n} id="icu:WhatsNew__8.27--0" />],
   };
 
   if (releaseNotes.features.length === 1 && !releaseNotes.header) {