MailKit macOS xcode16.0 b2

#MailKit.framework

diff -ruN /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEComposeSession.h /Applications/Xcode_16.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEComposeSession.h
--- /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEComposeSession.h	2024-06-01 03:52:29
+++ /Applications/Xcode_16.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEComposeSession.h	2024-06-15 15:56:10
@@ -49,6 +49,7 @@
 
 /// @brief Methods in this protocol can be used by a mail app extension to keep track of new messages composed by the user and to make changes to the recipeint email address tokens.
 API_AVAILABLE(macos(12.0)) API_UNAVAILABLE(ios, watchos, macCatalyst) API_UNAVAILABLE(tvos)
+NS_SWIFT_UI_ACTOR
 @protocol MEComposeSessionHandler <NSObject>
 
 /// @brief This is invoked when a new message compose window is created.
diff -ruN /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEExtension.h /Applications/Xcode_16.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEExtension.h
--- /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEExtension.h	2024-06-01 03:52:29
+++ /Applications/Xcode_16.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEExtension.h	2024-06-15 15:56:10
@@ -18,6 +18,7 @@
 
 /// @brief A protocol which must be adopted by the class set as extension's `NSExtensionPrincipalClass`.
 API_AVAILABLE(macos(12.0)) API_UNAVAILABLE(ios, watchos, macCatalyst) API_UNAVAILABLE(tvos)
+NS_SWIFT_UI_ACTOR
 @protocol MEExtension <NSObject>
 
 @optional
diff -ruN /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEMessageSecurityHandler.h /Applications/Xcode_16.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEMessageSecurityHandler.h
--- /Applications/Xcode_16.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEMessageSecurityHandler.h	2024-06-01 03:52:29
+++ /Applications/Xcode_16.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/MailKit.framework/Headers/MEMessageSecurityHandler.h	2024-06-15 15:56:10
@@ -19,6 +19,7 @@
 } API_AVAILABLE(macos(12.0)) API_UNAVAILABLE(ios, watchos, macCatalyst) API_UNAVAILABLE(tvos);
 
 API_AVAILABLE(macos(12.0)) API_UNAVAILABLE(ios, watchos, macCatalyst) API_UNAVAILABLE(tvos)
+NS_SWIFT_UI_ACTOR
 @protocol MEMessageSecurityHandler <MEMessageEncoder, MEMessageDecoder>
 
 #if !TARGET_OS_WATCH