Add release notes for 6.38

_locales/en/messages.json

@@ -6903,13 +6903,10 @@
     "messageformat": "Small tweaks, bug fixes, and performance enhancements. Thanks for using Signal!",
     "description": "Release notes for releases that only include bug fixes"
   },
-  "icu:WhatsNew__v6.36--0": {
-    "messageformat": "We updated the user interface to better indicate when a group video call is reconnecting. Now you'll see blurred thumbnails instead of what used to look like an elaborate prank where everyone pretended to freeze at the same time."
-  },
-  "icu:WhatsNew__v6.36--1": {
-    "messageformat": "The system tray icon will no longer appear pixelated on Ubuntu Linux, unless you've managed to get Ubuntu Linux running on an old smart refrigerator with a low-res screen."
-  },
   "icu:WhatsNew__v6.37--0": {
     "messageformat": "We've added a new way to keep your Signal contacts nice and tidy. This Halloween season, remove the ghost of an old contact. Just click on the three dots next to their name in the contact list on the New Chat screen and select \"Remove.\""
+  },
+  "icu:WhatsNew__v6.38--0": {
+    "messageformat": "This release includes an updated design for Signal voice and video calls. Now the calling user interface will still look fantastic even if your camera isn't on and you can't stare at your own beautiful reflection."
   }
 }

ts/components/WhatsNewModal.tsx

@@ -29,7 +29,7 @@ export function WhatsNewModal({
   const releaseNotes: ReleaseNotesType = {
     date: new Date(window.getBuildCreation?.() || Date.now()),
     version: window.getVersion?.(),
-    features: [<Intl i18n={i18n} id="icu:WhatsNew__v6.37--0" />],
+    features: [<Intl i18n={i18n} id="icu:WhatsNew__v6.38--0" />],
   };
 
   if (releaseNotes.features.length === 1) {