diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index e2925c928a..0b14ce4b28 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -9212,5 +9212,9 @@
     "messageformat": "Small tweaks, bug fixes, and performance enhancements. Thanks for using Signal!",
     "description": "Release notes for releases that only include bug fixes",
     "ignoreUnused": true
+  },
+  "icu:WhatsNew__7.73": {
+    "messageformat": "This update introduces new performance optimizations to help improve battery life, so you'll have more charge available for emotionally charged conversations.",
+    "description": "Release notes for 7.73 release"
   }
 }
diff --git a/ts/components/WhatsNewModal.tsx b/ts/components/WhatsNewModal.tsx
index 7113347ad6..939adf495c 100644
--- a/ts/components/WhatsNewModal.tsx
+++ b/ts/components/WhatsNewModal.tsx
@@ -43,7 +43,7 @@ export function WhatsNewModal({
   const releaseNotes: ReleaseNotesType = {
     date: new Date(window.getBuildCreation?.() || Date.now()),
     version: window.getVersion?.(),
-    features: [<I18n i18n={i18n} id="icu:WhatsNew__bugfixes--6" />],
+    features: [<I18n i18n={i18n} id="icu:WhatsNew__7.73" />],
   };
 
   if (releaseNotes.features.length === 1 && !releaseNotes.header) {