Foundation tvOS xcode27.3 b1

#Foundation.framework

diff -ruN /Applications/Xcode_27.2.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSAttributedString.h /Applications/Xcode_27.3.0-beta1.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSAttributedString.h
--- /Applications/Xcode_27.2.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSAttributedString.h	2026-10-04 00:49:25
+++ /Applications/Xcode_27.3.0-beta1.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSAttributedString.h	2026-11-04 09:32:01
@@ -639,6 +639,11 @@
     NS_SWIFT_NAME(inflectionAlternative)
     API_AVAILABLE(macos(12.0), ios(15.0), watchos(8.0), tvos(15.0));
 
+/// An attribute key whose value specifies the grammatical possessor's morphology
+FOUNDATION_EXPORT NSAttributedStringKey const NSPossessorMorphologyAttributeName
+    NS_SWIFT_NAME(possessorMorphology)
+    API_AVAILABLE(macos(27.3), ios(27.3), watchos(27.3), tvos(27.3), visionos(27.3));
+
 /// An attribute key whose value specifies a localized number format.
 FOUNDATION_EXPORT NSAttributedStringKey const NSLocalizedNumberFormatAttributeName
     NS_SWIFT_NAME(localizedNumberFormat)
diff -ruN /Applications/Xcode_27.2.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSMorphology.h /Applications/Xcode_27.3.0-beta1.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSMorphology.h
--- /Applications/Xcode_27.2.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSMorphology.h	2026-10-04 01:29:09
+++ /Applications/Xcode_27.3.0-beta1.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSMorphology.h	2026-11-04 09:32:01
@@ -88,7 +88,8 @@
     NSGrammaticalCaseEssive,
     NSGrammaticalCaseInessive,
     NSGrammaticalCaseLocative,
-    NSGrammaticalCaseTranslative
+    NSGrammaticalCaseTranslative,
+    NSGrammaticalCaseInstrumental API_AVAILABLE(macos(27.3), ios(27.3), watchos(27.3), tvos(27.3), visionos(27.3))
 } API_AVAILABLE(macos(14.0), ios(17.0), tvos(17.0), watchos(10.0));
 
 typedef NS_ENUM(NSInteger, NSGrammaticalPronounType) {