Merge pull request syphon-org#733 from syphon-org/fix/spec-private-re…

…ad-receipts

fix: Private Read Receipts have hit a spec version!

lib/store/settings/actions.dart

@@ -242,19 +242,23 @@ ThunkAction<AppState> incrementLanguage() {
   };
 }
 
+///Supported since Spec v1.4
+///https://spec.matrix.org/v1.4/client-server-api/#private-read-receipts
 Future<bool> homeserverSupportsPrivateReadReceipts(
     Store<AppState> store) async {
   final version = await MatrixApi.checkVersion(
     protocol: store.state.authStore.protocol,
     homeserver: store.state.authStore.user.homeserver,
   );
 
+  final supportedVersions = version['versions'];
   final unstableFeatures = version['unstable_features'];
 
-  //TODO: update when this hits a spec version
-  return unstableFeatures != null &&
-      unstableFeatures.containsKey('org.matrix.msc2285.stable') &&
-      unstableFeatures['org.matrix.msc2285.stable'];
+  //TODO: deprecate unstableFeatures check
+  return (supportedVersions.contains('v1.4')) ||
+      unstableFeatures != null &&
+          unstableFeatures.containsKey('org.matrix.msc2285.stable') &&
+          unstableFeatures['org.matrix.msc2285.stable'];
 }
 
 @Deprecated('Due to be unsupported as of Synapse v1.67.0')