diff -ruN /Applications/Xcode_26.5.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/UserNotifications.framework/Headers/UNError.h /Applications/Xcode_27.0.0-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/UserNotifications.framework/Headers/UNError.h
--- /Applications/Xcode_26.5.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/UserNotifications.framework/Headers/UNError.h	2026-04-18 20:40:33
+++ /Applications/Xcode_27.0.0-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/UserNotifications.framework/Headers/UNError.h	2026-05-23 15:30:03
@@ -18,6 +18,7 @@
     UNErrorCodeAttachmentNotInDataStore,
     UNErrorCodeAttachmentMoveIntoDataStoreFailed,
     UNErrorCodeAttachmentCorrupt,
+    UNErrorCodeAttachmentUnsupportedType,
     
     UNErrorCodeNotificationInvalidNoDate = 1400,
     UNErrorCodeNotificationInvalidNoContent,