diff --git a/runtime/syntax/awk.vim b/runtime/syntax/awk.vim
index 40491ee..ae0f217 100644
--- a/runtime/syntax/awk.vim
+++ b/runtime/syntax/awk.vim
@@ -1,15 +1,15 @@
 " Vim syntax file
 " Language:	awk, nawk, gawk, mawk
 " Maintainer:	Antonio Colombo <azc100@gmail.com>
-" Last Change:	2014 Oct 21
+" Last Change:	2016 Jul 15
 
-" AWK  ref.  is: Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
+" AWK  ref. is: Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
 " The AWK Programming Language, Addison-Wesley, 1988
 
 " GAWK ref. is: Arnold D. Robbins
 " Effective AWK Programming, Third Edition, O'Reilly, 2001
 " Effective AWK Programming, Fourth Edition, O'Reilly, 2015
-" (also available with the gawk source distribution)
+" (also available and updated with the gawk source distribution)
 
 " MAWK is a "new awk" meaning it implements AWK ref.
 " mawk conforms to the Posix 1003.2 (draft 11.3)
@@ -19,11 +19,8 @@
 " TODO:
 " Dig into the commented out syntax expressions below.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" Quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -35,13 +32,13 @@
 syn keyword awkStatement	break continue delete exit
 syn keyword awkStatement	function getline next
 syn keyword awkStatement	print printf return
-" GAWK ref. Chapter 7
-syn keyword awkStatement	nextfile
+" GAWK ref. Chapter 7-9
+syn keyword awkStatement	switch nextfile
+syn keyword awkStatement	func
 "
 " GAWK ref. Chapter 9, Functions
-"
 " Numeric Functions
-syn keyword awkFunction	atan2 cos div exp int log rand sin sqrt srand
+syn keyword awkFunction	atan2 cos exp int intdiv log rand sin sqrt srand
 " String Manipulation Functions
 syn keyword awkFunction	asort asort1 gensub gsub index length match 
 syn keyword awkFunction	patsplit split sprintf strtonum sub substr
@@ -52,17 +49,17 @@
 syn keyword awkFunction	mktime strftime systime
 " Bit Manipulation Functions
 syn keyword awkFunction	and compl lshift or rshift xor
-" Getting Type Function
-syn keyword awkFunction	isarray
+" Getting Type Functions
+syn keyword awkFunction	isarray typeof
 " String-Translation Functions
 syn keyword awkFunction	bindtextdomain dcgettext dcngetext
 
 syn keyword awkConditional	if else
-syn keyword awkRepeat	while for
+syn keyword awkRepeat	while for do
 
-syn keyword awkTodo		contained TODO
+syn keyword awkTodo	contained TODO
 
-syn keyword awkPatterns	BEGIN END
+syn keyword awkPatterns	BEGIN END BEGINFILE ENDFILE
 
 " GAWK ref. Chapter 7
 " Built-in Variables That Control awk
@@ -74,20 +71,18 @@
 syn keyword awkVariables	FNR NF FUNCTAB NR PROCINFO RLENGTH RSTART 
 syn keyword awkVariables	RT SYMTAB
 
-syn keyword awkRepeat	do
 
 " Octal format character.
 syn match   awkSpecialCharacter display contained "\\[0-7]\{1,3\}"
-syn keyword awkStatement	func nextfile
 " Hex   format character.
 syn match   awkSpecialCharacter display contained "\\x[0-9A-Fa-f]\+"
 
 syn match   awkFieldVars	"\$\d\+"
 
-"catch errors caused by wrong parenthesis
-syn region	awkParen	transparent start="(" end=")" contains=ALLBUT,awkParenError,awkSpecialCharacter,awkArrayElement,awkArrayArray,awkTodo,awkRegExp,awkBrktRegExp,awkBrackets,awkCharClass
+" catch errors caused by wrong parenthesis
+syn region	awkParen	transparent start="(" end=")" contains=ALLBUT,awkParenError,awkSpecialCharacter,awkArrayElement,awkArrayArray,awkTodo,awkRegExp,awkBrktRegExp,awkBrackets,awkCharClass,awkComment
 syn match	awkParenError	display ")"
-syn match	awkInParen	display contained "[{}]"
+"syn match	awkInParen	display contained "[{}]"
 
 " 64 lines for complex &&'s, and ||'s in a big "if"
 syn sync ccomment awkParen maxlines=64
@@ -141,7 +136,7 @@
 syn keyword awkExpression	in
 
 " Boolean Logic (OR, AND, NOT)
-"syn match  awkBoolLogic	"||\|&&\|\!"
+syn match  awkBoolLogic	"||\|&&\|\!"
 
 " This is overridden by less-than & greater-than.
 " Put this above those to override them.
@@ -171,63 +166,42 @@
 " (for the few instances where it would be more than "oneline")
 syn sync ccomment awkArray maxlines=10
 
-" define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_awk_syn_inits")
-  if version < 508
-    let did_awk_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-
-  HiLink awkConditional		Conditional
-  HiLink awkFunction		Function
-  HiLink awkRepeat		Repeat
-  HiLink awkStatement		Statement
-
-  HiLink awkString		String
-  HiLink awkSpecialPrintf	Special
-  HiLink awkSpecialCharacter	Special
-
-  HiLink awkSearch		String
-  HiLink awkBrackets		awkRegExp
-  HiLink awkBrktRegExp		awkNestRegExp
-  HiLink awkCharClass		awkNestRegExp
-  HiLink awkNestRegExp		Keyword
-  HiLink awkRegExp		Special
-
-  HiLink awkNumber		Number
-  HiLink awkFloat		Float
-
-  HiLink awkFileIO		Special
-  HiLink awkOperator		Special
-  HiLink awkExpression		Special
-  HiLink awkBoolLogic		Special
-
-  HiLink awkPatterns		Special
-  HiLink awkVariables		Special
-  HiLink awkFieldVars		Special
-
-  HiLink awkLineSkip		Special
-  HiLink awkSemicolon		Special
-  HiLink awkComma		Special
-  "HiLink awkIdentifier		Identifier
-
-  HiLink awkComment		Comment
-  HiLink awkTodo		Todo
-
-  " Change this if you want nested array names to be highlighted.
-  HiLink awkArrayArray		awkArray
-  HiLink awkArrayElement	Special
-
-  HiLink awkParenError		awkError
-  HiLink awkInParen		awkError
-  HiLink awkError		Error
-
-  delcommand HiLink
-endif
+" Define the default highlighting.
+" Only used when an item doesn't have highlighting yet
+hi def link awkConditional	Conditional
+hi def link awkFunction		Function
+hi def link awkRepeat		Repeat
+hi def link awkStatement	Statement
+hi def link awkString		String
+hi def link awkSpecialPrintf	Special
+hi def link awkSpecialCharacter	Special
+hi def link awkSearch		String
+hi def link awkBrackets		awkRegExp
+hi def link awkBrktRegExp	awkNestRegExp
+hi def link awkCharClass	awkNestRegExp
+hi def link awkNestRegExp	Keyword
+hi def link awkRegExp		Special
+hi def link awkNumber		Number
+hi def link awkFloat		Float
+hi def link awkFileIO		Special
+hi def link awkOperator		Special
+hi def link awkExpression	Special
+hi def link awkBoolLogic	Special
+hi def link awkPatterns		Special
+hi def link awkVariables	Special
+hi def link awkFieldVars	Special
+hi def link awkLineSkip		Special
+hi def link awkSemicolon	Special
+hi def link awkComma		Special
+hi def link awkIdentifier	Identifier
+hi def link awkComment		Comment
+hi def link awkTodo		Todo
+" Change this if you want nested array names to be highlighted.
+hi def link awkArrayArray	awkArray
+hi def link awkArrayElement	Special
+hi def link awkParenError	awkError
+hi def link awkInParen		awkError
+hi def link awkError		Error
 
 let b:current_syntax = "awk"