diff --git a/runtime/syntax/fortran.vim b/runtime/syntax/fortran.vim
index 019a0bf..2b62226 100644
--- a/runtime/syntax/fortran.vim
+++ b/runtime/syntax/fortran.vim
@@ -1,7 +1,8 @@
 " Vim syntax file
 " Language:	Fortran 2008 (and older: Fortran 2003, 95, 90, and 77)
 " Version:	102
-" Last Change:	2019 Dec. 14
+" Last Change:	2020 Apr 20
+" Patched By:	Eisuke Kawashima
 " Maintainer:	Ajit J. Thakkar <ajit@unb.ca>; <http://www2.unb.ca/~ajit/>
 " Usage:	For instructions, do :help fortran-syntax from Vim
 " Credits:
@@ -53,10 +54,10 @@
   elseif exists("fortran_fixed_source")
     " User guarantees fixed source form for all fortran files
     let b:fortran_fixed_source = 1
-  elseif expand("%:e") ==? "f\<90\|95\|03\|08\>"
+  elseif expand("%:e") =~? '^f\%(90\|95\|03\|08\)$'
     " Free-form file extension defaults as in Intel ifort, gcc(gfortran), NAG, Pathscale, and Cray compilers
     let b:fortran_fixed_source = 0
-  elseif expand("%:e") ==? "f\|f77\|for"
+  elseif expand("%:e") =~? '^\%(f\|f77\|for\)$'
     " Fixed-form file extension defaults
     let b:fortran_fixed_source = 1
   else
diff --git a/runtime/syntax/man.vim b/runtime/syntax/man.vim
index 77675c5..5bdba86 100644
--- a/runtime/syntax/man.vim
+++ b/runtime/syntax/man.vim
@@ -3,7 +3,7 @@
 " Maintainer:	SungHyun Nam <goweol@gmail.com>
 " Previous Maintainer:	Gautam H. Mudunuri <gmudunur@informatica.com>
 " Version Info:
-" Last Change:	2015 Nov 24
+" Last Change:	2020 Apr 15
 
 " Additional highlighting by Johannes Tanzler <johannes.tanzler@aon.at>:
 "	* manSubHeading
@@ -18,8 +18,11 @@
 runtime! syntax/ctrlh.vim
 
 syn case ignore
+
+syn match manHeader '\%1l.*'
+exe 'syn match manFooter ''\%' . line('$') . 'l.*'''
+
 syn match  manReference       "\f\+([1-9][a-z]\=)"
-syn match  manTitle	      "^\f\+([0-9]\+[a-z]\=).*"
 syn match  manSectionHeading  "^[a-z][a-z -]*[a-z]$"
 syn match  manSubHeading      "^\s\{3\}[a-z][a-z -]*[a-z]$"
 syn match  manOptionDesc      "^\s*[+-][a-z0-9]\S*"
@@ -36,7 +39,9 @@
 " Define the default highlighting.
 " Only when an item doesn't have highlighting yet
 
-hi def link manTitle	    Title
+hi def link manHeader Title
+hi def link manFooter PreProc
+
 hi def link manSectionHeading  Statement
 hi def link manOptionDesc	    Constant
 hi def link manLongOptionDesc  Constant
diff --git a/runtime/syntax/perl.vim b/runtime/syntax/perl.vim
index 6ac28f6..f4f9520 100644
--- a/runtime/syntax/perl.vim
+++ b/runtime/syntax/perl.vim
@@ -1,9 +1,9 @@
 " Vim syntax file
 " Language:      Perl 5
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
-" Homepage:      http://github.com/vim-perl/vim-perl/tree/master
-" Bugs/requests: http://github.com/vim-perl/vim-perl/issues
-" Last Change:   2017-09-12
+" Homepage:      https://github.com/vim-perl/vim-perl/tree/master
+" Bugs/requests: https://github.com/vim-perl/vim-perl/issues
+" Last Change:   2020 Apr 15
 " Contributors:  Andy Lester <andy@petdance.com>
 "                Hinrik Örn Sigurðsson <hinrik.sig@gmail.com>
 "                Lukas Mai <l.mai.web.de>
diff --git a/runtime/syntax/perl6.vim b/runtime/syntax/perl6.vim
index 3bcd9ff..62ddc45 100644
--- a/runtime/syntax/perl6.vim
+++ b/runtime/syntax/perl6.vim
@@ -1,9 +1,9 @@
 " Vim syntax file
 " Language:      Perl 6
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
-" Homepage:      http://github.com/vim-perl/vim-perl/tree/master
-" Bugs/requests: http://github.com/vim-perl/vim-perl/issues
-" Last Change:   2013-07-21
+" Homepage:      https://github.com/vim-perl/vim-perl/tree/master
+" Bugs/requests: https://github.com/vim-perl/vim-perl/issues
+" Last Change:   2020 Apr 15
 
 " Contributors:  Luke Palmer <fibonaci@babylonia.flatirons.org>
 "                Moritz Lenz <moritz@faui2k3.org>
diff --git a/runtime/syntax/synload.vim b/runtime/syntax/synload.vim
index ab918c6..f373161 100644
--- a/runtime/syntax/synload.vim
+++ b/runtime/syntax/synload.vim
@@ -1,6 +1,6 @@
 " Vim syntax support file
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2016 Nov 04
+" Last Change:	2020 Apr 13
 
 " This file sets up for syntax highlighting.
 " It is loaded from "syntax.vim" and "manual.vim".
@@ -52,9 +52,11 @@
 
   if s != ""
     " Load the syntax file(s).  When there are several, separated by dots,
-    " load each in sequence.
+    " load each in sequence.  Skip empty entries.
     for name in split(s, '\.')
-      exe "runtime! syntax/" . name . ".vim syntax/" . name . "/*.vim"
+      if !empty(name)
+	exe "runtime! syntax/" . name . ".vim syntax/" . name . "/*.vim"
+      endif
     endfor
   endif
 endfun
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index d99dc12..22947bf 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
 " Language:	Vim 8.0 script
 " Maintainer:	Charles E. Campbell <NdrOchipS@PcampbellAfamily.Mbiz>
-" Last Change:	March 11, 2020
-" Version:	8.0-30
+" Last Change:	Apr 15, 2020
+" Version:	8.0-33
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_VIM
 " Automatically generated keyword lists: {{{1
 
@@ -224,7 +224,7 @@
 
 " Operators: {{{2
 " =========
-syn cluster	vimOperGroup	contains=vimEnvvar,vimFunc,vimFuncVar,vimOper,vimOperParen,vimNumber,vimString,vimRegister,vimContinue
+syn cluster	vimOperGroup	contains=vimEnvvar,vimFunc,vimFuncVar,vimOper,vimOperParen,vimNumber,vimString,vimRegister,vimContinue,vim9Comment
 syn match	vimOper	"\%#=1\(==\|!=\|>=\|<=\|=\~\|!\~\|>\|<\|=\)[?#]\{0,2}"	skipwhite nextgroup=vimString,vimSpecFile
 syn match	vimOper	"\(\<is\|\<isnot\)[?#]\{0,2}\>"			skipwhite nextgroup=vimString,vimSpecFile
 syn match	vimOper	"||\|&&\|[-+.!]"				skipwhite nextgroup=vimString,vimSpecFile
@@ -265,7 +265,7 @@
 
 " User-Specified Commands: {{{2
 " =======================
-syn cluster	vimUserCmdList	contains=vimAddress,vimSyntax,vimHighlight,vimAutoCmd,vimCmplxRepeat,vimComment,vimCtrlChar,vimEscapeBrace,vimFunc,vimFuncName,vimFunction,vimFunctionError,vimIsCommand,vimMark,vimNotation,vimNumber,vimOper,vimRegion,vimRegister,vimLet,vimSet,vimSetEqual,vimSetString,vimSpecFile,vimString,vimSubst,vimSubstRep,vimSubstRange,vimSynLine
+syn cluster	vimUserCmdList	contains=vimAddress,vimSyntax,vimHighlight,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimCtrlChar,vimEscapeBrace,vimFunc,vimFuncName,vimFunction,vimFunctionError,vimIsCommand,vimMark,vimNotation,vimNumber,vimOper,vimRegion,vimRegister,vimLet,vimSet,vimSetEqual,vimSetString,vimSpecFile,vimString,vimSubst,vimSubstRep,vimSubstRange,vimSynLine
 syn keyword	vimUserCommand	contained	com[mand]
 syn match	vimUserCmd	"\<com\%[mand]!\=\>.*$"	contains=vimUserAttrb,vimUserAttrbError,vimUserCommand,@vimUserCmdList
 syn match	vimUserAttrbError	contained	"-\a\+\ze\s"
@@ -295,6 +295,12 @@
 syn match	vimComment	+\<endif\s\+".*$+lc=5	contains=@vimCommentGroup,vimCommentString
 syn match	vimComment	+\<else\s\+".*$+lc=4	contains=@vimCommentGroup,vimCommentString
 syn region	vimCommentString	contained oneline start='\S\s\+"'ms=e	end='"'
+" Vim9 comments - TODO: might be highlighted while they don't work
+syn match	vimComment	excludenl +\s#[^{].*$+lc=1	contains=@vimCommentGroup,vimCommentString
+syn match	vimComment	+\<endif\s\+#[^{].*$+lc=5	contains=@vimCommentGroup,vimCommentString
+syn match	vimComment	+\<else\s\+#[^{].*$+lc=4	contains=@vimCommentGroup,vimCommentString
+" Vim9 comment inside expression
+syn match	vim9Comment	+\s\zs#[^{].*$+	contains=@vimCommentGroup,vimCommentString
 
 " Environment Variables: {{{2
 " =====================
@@ -372,7 +378,7 @@
 syn match	vimCmplxRepeat	'@[0-9a-z".=@:]\ze\($\|[^a-zA-Z]\>\)'
 
 " Set command and associated set-options (vimOptions) with comment {{{2
-syn region	vimSet		matchgroup=vimCommand start="\<\%(setl\%[ocal]\|setg\%[lobal]\|se\%[t]\)\>" skip="\%(\\\\\)*\\." end="$" end="|" matchgroup=vimNotation end="<[cC][rR]>" keepend oneline contains=vimSetEqual,vimOption,vimErrSetting,vimComment,vimSetString,vimSetMod
+syn region	vimSet		matchgroup=vimCommand start="\<\%(setl\%[ocal]\|setg\%[lobal]\|se\%[t]\)\>" skip="\%(\\\\\)*\\." end="$" end="|" matchgroup=vimNotation end="<[cC][rR]>" keepend oneline contains=vimSetEqual,vimOption,vimErrSetting,vimComment,vim9Comment,vimSetString,vimSetMod
 syn region	vimSetEqual	contained	start="[=:]\|[-+^]=" skip="\\\\\|\\\s" end="[| \t]\|$"me=e-1	contains=vimCtrlChar,vimSetSep,vimNotation,vimEnvvar oneline
 syn region	vimSetString	contained	start=+="+hs=s+1	skip=+\\\\\|\\"+  end=+"+		contains=vimCtrlChar
 syn match	vimSetSep	contained	"[,:]" skipwhite nextgroup=vimCommand
@@ -381,7 +387,7 @@
 " Let: {{{2
 " ===
 syn keyword	vimLet	let	unl[et]	skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
-VimFoldh syn region vimLetHereDoc	matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\>\)\=\s*\z(\L\S*\)'	matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'	contains=vimComment
+VimFoldh syn region vimLetHereDoc	matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\>\)\=\s*\z(\L\S*\)'	matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'	contains=vimComment,vim9Comment
 
 " Abbreviations: {{{2
 " =============
@@ -427,7 +433,7 @@
 syn match	vimMenuNameMore	"\c\\\s\|<tab>\|\\\."	contained nextgroup=vimMenuName,vimMenuNameMore contains=vimNotation
 syn match	vimMenuMod    contained	"\c<\(script\|silent\)\+>"  skipwhite contains=vimMapModKey,vimMapModErr nextgroup=@vimMenuList
 syn match	vimMenuMap	"\s"	contained skipwhite nextgroup=vimMenuRhs
-syn match	vimMenuRhs	".*$"	contained contains=vimString,vimComment,vimIsCommand
+syn match	vimMenuRhs	".*$"	contained contains=vimString,vimComment,vim9Comment,vimIsCommand
 syn match	vimMenuBang	"!"	contained skipwhite nextgroup=@vimMenuList
 
 " Angle-Bracket Notation: (tnx to Michael Geddes) {{{2
@@ -477,8 +483,8 @@
 syn match	vimSynKeyContainedin	contained	"\<containedin="	nextgroup=vimGroupList
 syn match	vimSynNextgroup	contained	"nextgroup="	nextgroup=vimGroupList
 
-syn match	vimSyntax	"\<sy\%[ntax]\>"	contains=vimCommand skipwhite nextgroup=vimSynType,vimComment
-syn match	vimAuSyntax	contained	"\s+sy\%[ntax]"	contains=vimCommand skipwhite nextgroup=vimSynType,vimComment
+syn match	vimSyntax	"\<sy\%[ntax]\>"	contains=vimCommand skipwhite nextgroup=vimSynType,vimComment,vim9Comment
+syn match	vimAuSyntax	contained	"\s+sy\%[ntax]"	contains=vimCommand skipwhite nextgroup=vimSynType,vimComment,vim9Comment
 syn cluster vimFuncBodyList add=vimSyntax
 
 " Syntax: case {{{2
@@ -515,7 +521,7 @@
 syn cluster vimFuncBodyList add=vimSynType
 
 " Syntax: match {{{2
-syn cluster	vimSynMtchGroup	contains=vimMtchComment,vimSynContains,vimSynError,vimSynMtchOpt,vimSynNextgroup,vimSynRegPat,vimNotation
+syn cluster	vimSynMtchGroup	contains=vimMtchComment,vimSynContains,vimSynError,vimSynMtchOpt,vimSynNextgroup,vimSynRegPat,vimNotation,vim9Comment
 syn keyword	vimSynType	contained	match	skipwhite nextgroup=vimSynMatchRegion
 syn region	vimSynMatchRegion	contained keepend	matchgroup=vimGroupName start="\h\w*" matchgroup=vimSep end="|\|$" contains=@vimSynMtchGroup
 syn match	vimSynMtchOpt	contained	"\%#=1\<\(conceal\|transparent\|contained\|excludenl\|keepend\|skipempty\|skipwhite\|display\|extend\|skipnl\|fold\)\>"
@@ -569,7 +575,7 @@
 
 " Highlighting: {{{2
 " ============
-syn cluster	vimHighlightCluster		contains=vimHiLink,vimHiClear,vimHiKeyList,vimComment
+syn cluster	vimHighlightCluster		contains=vimHiLink,vimHiClear,vimHiKeyList,vimComment,vim9Comment
 if !exists("g:vimsyn_noerror") && !exists("g:vimsyn_novimhictermerror")
  syn match	vimHiCtermError	contained	"\D\i*"
 endif
@@ -624,6 +630,7 @@
 " Beginners - Patterns that involve ^ {{{2
 " =========
 syn match	vimLineComment	+^[ \t:]*".*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
+syn match	vim9LineComment	+^[ \t:]\+#.*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
 syn match	vimCommentTitle	'"\s*\%([sS]:\|\h\w*#\)\=\u\w*\(\s\+\u\w*\)*:'hs=s+1	contained contains=vimCommentTitleLeader,vimTodo,@vimCommentGroup
 syn match	vimContinue	"^\s*\\"
 syn region	vimString	start="^\s*\\\z(['"]\)" skip='\\\\\|\\\z1' end="\z1" oneline keepend contains=@vimStringGroup,vimContinue
@@ -738,10 +745,10 @@
  unlet! b:current_syntax
  syn cluster vimFuncBodyList	add=vimPythonRegion
  exe "syn include @vimPythonScript ".s:pythonpath
- VimFoldP syn region vimPythonRegion matchgroup=vimScriptDelim start=+py\%[thon]3\=\s*<<\s*\z(\S*\)\ze\(\s*#.*\)\=$+ end=+^\z1\ze\(\s*".*\)\=$+	contains=@vimPythonScript
- VimFoldP syn region vimPythonRegion matchgroup=vimScriptDelim start=+py\%[thon]3\=\s*<<\s*$+ end=+\.$+			contains=@vimPythonScript
+ VimFoldP syn region vimPythonRegion matchgroup=vimScriptDelim start=+py\%[thon][3x]\=\s*<<\s*\z(\S*\)\ze\(\s*#.*\)\=$+ end=+^\z1\ze\(\s*".*\)\=$+	contains=@vimPythonScript
+ VimFoldP syn region vimPythonRegion matchgroup=vimScriptDelim start=+py\%[thon][3x]\=\s*<<\s*$+ end=+\.$+				contains=@vimPythonScript
  VimFoldP syn region vimPythonRegion matchgroup=vimScriptDelim start=+Py\%[thon]2or3\s*<<\s*\z(\S*\)\ze\(\s*#.*\)\=$+ end=+^\z1\ze\(\s*".*\)\=$+	contains=@vimPythonScript
- VimFoldP syn region vimPythonRegion matchgroup=vimScriptDelim start=+Py\%[thon]2or3\=\s*<<\s*$+ end=+\.$+			contains=@vimPythonScript
+ VimFoldP syn region vimPythonRegion matchgroup=vimScriptDelim start=+Py\%[thon]2or3\=\s*<<\s*$+ end=+\.$+				contains=@vimPythonScript
  syn cluster vimFuncBodyList	add=vimPythonRegion
 else
  syn region vimEmbedError start=+py\%[thon]3\=\s*<<\s*\z(.*\)$+ end=+^\z1$+
@@ -857,6 +864,7 @@
  hi def link vimCmplxRepeat	SpecialChar
  hi def link vimCommand	Statement
  hi def link vimComment	Comment
+ hi def link vim9Comment	Comment
  hi def link vimCommentString	vimString
  hi def link vimCommentTitle	PreProc
  hi def link vimCondHL	vimCommand
@@ -906,6 +914,7 @@
  hi def link vimLetHereDocStart	Special
  hi def link vimLetHereDocStop	Special
  hi def link vimLineComment	vimComment
+ hi def link vim9LineComment	vimComment
  hi def link vimMapBang	vimCommand
  hi def link vimMapModKey	vimFuncSID
  hi def link vimMapMod	vimBracket