Index: vim/syntax/objc.vim
==================================================================
--- vim/syntax/objc.vim
+++ vim/syntax/objc.vim
@@ -35,12 +35,14 @@
 syn keyword objcTypeModifier	bycopy in out inout oneway OF_GENERIC OF_INLINE
 syn keyword objcTypeModifier	OF_KINDOF OF_CONST_FUNC OF_NO_RETURN
 syn keyword objcTypeModifier	OF_RETURNS_INNER_POINTER OF_NULLABLE_PROPERTY
 syn keyword objcTypeModifier	OF_NULL_RESETTABLE_PROPERTY OF_UNAVAILABLE
 syn keyword objcTypeModifier	OF_DESIGNATED_INITIALIZER OF_METHOD_FAMILY
+syn keyword objcTypeModifier	OF_REQUIRES_SUPER OF_ALIGNOF OF_ALIGNAS
+syn keyword objcTypeModifier	OF_SENTINEL
 syn keyword objcTypeModifier	_Nonnull _Nullable _Null_unspecified __kindof
-syn keyword objcConstant	nil Nil
+syn keyword objcConstant	nil Nil OF_NOT_FOUND
 
 " Match the ObjC #import directive (like C's #include)
 syn region objcImported display contained start=+"+  skip=+\\\\\|\\"+  end=+"+
 syn match  objcImported display contained "<[-_0-9a-zA-Z.\/]*>"
 syn match  objcImport display "^\s*\(%:\|#\)\s*import\>\s*["<]" contains=objcImported
@@ -124,16 +126,18 @@
 syn match objcDirective '@synthesize\|@dynamic\|@property' display
 syn match objcDirective '@optional\|@required\|@autoreleasepool' display
 syn keyword objcType IBOutlet IBAction Method __block instancetype
 syn keyword objcType __unsafe_unretained __bridge __bridge_retained __bridge_transfer __autoreleasing __strong __weak
 syn keyword objcType of_unichar_t of_char16_t of_char32_t of_comparison_result_t
-syn keyword objcType of_byte_order_t of_range_t of_point_t of_dimension_t
-syn keyword objcType of_mutex_t of_rmutex_t of_rectangle_t of_string_encoding_t
-syn keyword objcType of_time_interval_t of_resolver_result_t
-syn keyword objcType of_udp_socket_address_t of_offset_t of_stat_t of_socket_t
-syn keyword objcType of_spinlock_t of_options_parser_option_t
-syn keyword objcType of_http_request_method_t of_http_request_protocol_version_t
+syn keyword objcType of_comparator_t of_byte_order_t of_range_t of_point_t
+syn keyword objcType of_dimension_t of_mutex_t of_rmutex_t of_rectangle_t
+syn keyword objcType of_string_encoding_t of_time_interval_t
+syn keyword objcType of_resolver_result_t of_udp_socket_address_t of_offset_t
+syn keyword objcType of_stat_t of_socket_t of_spinlock_t
+syn keyword objcType of_options_parser_option_t of_http_request_method_t
+syn keyword objcType of_http_request_protocol_version_t
+syn keyword objcType of_file_attribute_key_t of_file_type_t of_file_attributes_t
 syn keyword objcConstant YES NO TRUE FALSE
 
 syn region objcImp start='@implementation' end='@end' transparent
 syn region objcHeader start='@interface' end='@end' transparent