diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index d8f44ddeed..4bb9c220df 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -10996,5 +10996,13 @@
   "icu:WhatsNew__8.16--0": {
     "messageformat": "We fixed a bug in the sticker creator that displayed the interface in the wrong language. Even though stickers are pictures (and therefore worth a thousand words) it's still important to get the words right too.",
     "description": "Release notes for 8.16"
+  },
+  "icu:WhatsNew__8.17--0": {
+    "messageformat": "Group admins can now delete recently sent messages in a group chat. If someone accidentally posts a spoiler in your Book Club group and then walks away from their phone, a group admin can delete it to keep the plot twist intact. You can easily see when a message was deleted and who removed it, just like the existing \"Delete for Everyone\" feature.",
+    "description": "Release notes for 8.17"
+  },
+  "icu:WhatsNew__8.17--1": {
+    "messageformat": "We also increased the maximum number of pinned chats from 4 to 10, so you can show 6 more people how much you love what they have to say.",
+    "description": "Release notes for 8.17"
   }
 }
diff --git a/ts/components/WhatsNewModal.dom.tsx b/ts/components/WhatsNewModal.dom.tsx
index eb1371cca4..5f6a906d06 100644
--- a/ts/components/WhatsNewModal.dom.tsx
+++ b/ts/components/WhatsNewModal.dom.tsx
@@ -28,7 +28,10 @@ export function WhatsNewModal({
   const releaseNotes: ReleaseNotesType = {
     date: new Date(window.getBuildCreation?.() || Date.now()),
     version: window.getVersion?.(),
-    features: [<I18n i18n={i18n} id="icu:WhatsNew__8.16--0" />],
+    features: [
+      <I18n i18n={i18n} id="icu:WhatsNew__8.17--0" />,
+      <I18n i18n={i18n} id="icu:WhatsNew__8.17--1" />,
+    ],
   };
 
   if (releaseNotes.features.length === 1 && !releaseNotes.header) {