diff --git a/app/src/main/java/com/gatecontrol/android/chat/ChatUpdateHint.kt b/app/src/main/java/com/gatecontrol/android/chat/ChatUpdateHint.kt
index bcc28292..ae96e3ea 100644
--- a/app/src/main/java/com/gatecontrol/android/chat/ChatUpdateHint.kt
+++ b/app/src/main/java/com/gatecontrol/android/chat/ChatUpdateHint.kt
@@ -16,11 +16,17 @@ import javax.inject.Singleton
  * Pure, unit-tested.
  */
 object ChatFeatureHint {
-    /** Every key of the `features` object this app knows (Messenger ≤ 1.4.0). */
+    /** Every key of the `features` object this app knows (Messenger ≤ 1.11.0). */
     val KNOWN: Set<String> = setOf(
         "direct", "groups", "voice", "files", "location", "reactions", "edit", "search", "disappearing",
         "bridges", "e2e",
         ChatFeatures.VIDEO_META, ChatFeatures.FILE_THUMBS,
+        // 1.5.0: Freigaben anfragen (approvers), „Am Ende ausschalten“
+        "action_requests", "grant_off",
+        // 1.6.0: „Wo Mitteilungen erscheinen“ (NotifyRoutesScreen)
+        "notice_routes",
+        // 1.11.0: Virenscan an Dateien (`media.scan`, MediaScan)
+        "scan",
     ) + ChatFeatures14.ALL
 
     /** The keys the server switches on that this app does not know. */
diff --git a/app/src/test/java/com/gatecontrol/android/chat/ChatMessenger14Test.kt b/app/src/test/java/com/gatecontrol/android/chat/ChatMessenger14Test.kt
index ddc08d87..e8810803 100644
--- a/app/src/test/java/com/gatecontrol/android/chat/ChatMessenger14Test.kt
+++ b/app/src/test/java/com/gatecontrol/android/chat/ChatMessenger14Test.kt
@@ -36,6 +36,22 @@ class ChatMessenger14Test {
         assertEquals(emptySet<String>(), ChatFeatureHint.unknown(f), "all 1.4 keys are known to this app")
     }
 
+    /** Everything Messenger 1.11.0 can switch on (GET me features, all options on): no update hint. */
+    @Test
+    fun `no update hint for the full feature set of messenger 1_11`() {
+        val all = listOf(
+            "direct", "groups", "voice", "files", "location", "reactions", "edit", "search", "disappearing",
+            "video_meta", "file_thumbs", "scan",
+            "status", "stories", "story_duration", "polls", "events", "arrival", "msg_tools", "privacy2",
+            "actions", "action_requests", "grant_off", "notices", "notice_routes",
+        )
+        val f = ChatJson.features(json(all.joinToString(",", "{", "}") { "\"$it\":true" }))
+        assertEquals(emptySet<String>(), ChatFeatureHint.unknown(f))
+        assertFalse(ChatFeatureHint.show(f, null))
+        val newer = ChatJson.features(json(all.joinToString(",", "{", ",\"later\":true}") { "\"$it\":true" }))
+        assertEquals(setOf("later"), ChatFeatureHint.unknown(newer), "a key of a newer messenger still shows the hint")
+    }
+
     // ─── polls ──────────────────────────────────────────────────────
 
     @Test