diff --git a/runtime/syntax/debchangelog.vim b/runtime/syntax/debchangelog.vim
index 8d09af0..2efd919 100644
--- a/runtime/syntax/debchangelog.vim
+++ b/runtime/syntax/debchangelog.vim
@@ -3,7 +3,7 @@
 " Maintainer:  Debian Vim Maintainers
 " Former Maintainers: Gerfried Fuchs <alfie@ist.org>
 "                     Wichert Akkerman <wakkerma@debian.org>
-" Last Change: 2022 Mar 28
+" Last Change: 2022 May 01
 " URL: https://salsa.debian.org/vim-team/vim-debian/blob/master/syntax/debchangelog.vim
 
 " Standard syntax initialization
@@ -24,7 +24,7 @@
       \ 'jessie', 'stretch', 'buster', 'bullseye', 'bookworm',
       \ 'trixie', 'sid', 'rc-buggy',
       \
-      \ 'trusty', 'xenial', 'bionic', 'focal', 'impish', 'jammy',
+      \ 'trusty', 'xenial', 'bionic', 'focal', 'impish', 'jammy', 'kinetic',
       \ 'devel'
       \ ]
 let s:unsupported = [
diff --git a/runtime/syntax/debcontrol.vim b/runtime/syntax/debcontrol.vim
index 8b65ece..4c7fb5d 100644
--- a/runtime/syntax/debcontrol.vim
+++ b/runtime/syntax/debcontrol.vim
@@ -3,7 +3,7 @@
 " Maintainer:  Debian Vim Maintainers
 " Former Maintainers: Gerfried Fuchs <alfie@ist.org>
 "                     Wichert Akkerman <wakkerma@debian.org>
-" Last Change: 2021 Nov 26
+" Last Change: 2022 May 11
 " URL: https://salsa.debian.org/vim-team/vim-debian/blob/master/syntax/debcontrol.vim
 
 " Standard syntax initialization
@@ -17,7 +17,7 @@
 " Should match case except for the keys of each field
 syn case match
 
-syn iskeyword @,48-57,-,/
+syn iskeyword @,48-57,-
 
 " Everything that is not explicitly matched by the rules below
 syn match debcontrolElse "^.*$"
diff --git a/runtime/syntax/debsources.vim b/runtime/syntax/debsources.vim
index d79ce4b..e3ec6e6 100644
--- a/runtime/syntax/debsources.vim
+++ b/runtime/syntax/debsources.vim
@@ -2,7 +2,7 @@
 " Language:     Debian sources.list
 " Maintainer:   Debian Vim Maintainers
 " Former Maintainer: Matthijs Mohlmann <matthijs@cacholong.nl>
-" Last Change: 2022 Mar 28
+" Last Change: 2022 May 01
 " URL: https://salsa.debian.org/vim-team/vim-debian/blob/master/syntax/debsources.vim
 
 " Standard syntax initialization
@@ -26,7 +26,7 @@
       \ 'jessie', 'stretch', 'buster', 'bullseye', 'bookworm',
       \ 'trixie', 'sid', 'rc-buggy',
       \
-      \ 'trusty', 'xenial', 'bionic', 'focal', 'impish', 'jammy',
+      \ 'trusty', 'xenial', 'bionic', 'focal', 'impish', 'jammy', 'kinetic',
       \ 'devel'
       \ ]
 let s:unsupported = [
diff --git a/runtime/syntax/help.vim b/runtime/syntax/help.vim
index f5a50bf..14777f8 100644
--- a/runtime/syntax/help.vim
+++ b/runtime/syntax/help.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	Vim help file
 " Maintainer:	Bram Moolenaar (Bram@vim.org)
-" Last Change:	2022 May 01
+" Last Change:	2022 May 12
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -215,7 +215,7 @@
 hi def link helpTodo		Todo
 hi def link helpURL		String
 
-if expand('%:p') == $VIMRUNTIME .. '/doc/syntax.txt'
+if expand('%:p') =~ escape($VIMRUNTIME, '\') .. '[/\\]doc[/\\]syntax.txt'
   " highlight groups with their respective color
   import 'dist/vimhelp.vim'
   call vimhelp.HighlightGroups()
diff --git a/runtime/syntax/scdoc.vim b/runtime/syntax/scdoc.vim
index 25c9c54..0180f35 100644
--- a/runtime/syntax/scdoc.vim
+++ b/runtime/syntax/scdoc.vim
@@ -1,6 +1,7 @@
 " Syntax file for scdoc files
-" Maintainer: Gregory Anders <greg@gpanders.com>
-" Last Updated: 2021-08-04
+" Maintainer: Gregory Anders <contact@gpanders.com>
+" Last Updated: 2022-05-09
+" Upstream: https://github.com/gpanders/vim-scdoc
 
 if exists('b:current_syntax')
     finish
@@ -20,33 +21,43 @@
 
 syntax match scdocLineBreak "++$"
 
-syntax match scdocOrderedListMarker "^\s*\.\%(\s\+\S\)\@="
-syntax match scdocListMarker "^\s*-\%(\s\+\S\)\@="
+syntax region scdocOrderedListItem matchgroup=scdocOrderedListMarker start="^\z(\s*\)\." skip="^\z1  .*$" end="^" contains=scdocBold,scdocUnderline
+syntax region scdocListItem matchgroup=scdocListMarker start="^\z(\s*\)-" skip="^\z1  .*$" end="^" contains=scdocBold,scdocUnderline
 
-syntax match scdocTableStartMarker "^[\[|\]][\[\-\]]"
-syntax match scdocTableMarker "^[|:][\[\-\] ]"
+" Tables cannot start with a column
+syntax match scdocTableError "^:"
+
+syntax region scdocTable matchgroup=scdocTableEntry start="^[\[|\]][\[\-\]<=>]" end="^$" contains=scdocTableEntry,scdocTableError,scdocTableContinuation,scdocBold,scdocUnderline,scdocPre
+syntax match scdocTableError "^.*$" contained
+syntax match scdocTableContinuation "^   \+\S\+" contained
+syntax match scdocTableEntry "^[|:][\[\-\]<=> ]" contained
+syntax match scdocTableError "^[|:][\[\-\]<=> ]\S.*$" contained
 
 syntax region scdocBold concealends matchgroup=scdocBoldDelimiter start="\\\@<!\*" end="\\\@<!\*"
 syntax region scdocUnderline concealends matchgroup=scdocUnderlineDelimiter start="\<\\\@<!_" end="\\\@<!_\>"
 syntax region scdocPre matchgroup=scdocPreDelimiter start="^\t*```" end="^\t*```"
 
-hi link scdocFirstLineValid     Comment
-hi link scdocComment            Comment
-hi link scdocHeader             Title
-hi link scdocOrderedListMarker  Statement
-hi link scdocListMarker         scdocOrderedListMarker
-hi link scdocLineBreak          Special
-hi link scdocTableMarker        Statement
-hi link scdocTableStartMarker   scdocTableMarker
+syntax sync minlines=50
 
-hi link scdocFirstLineError     Error
-hi link scdocCommentError       Error
-hi link scdocHeaderError        Error
-hi link scdocIndentError        Error
+hi default link scdocFirstLineValid     Comment
+hi default link scdocComment            Comment
+hi default link scdocHeader             Title
+hi default link scdocOrderedListMarker  Statement
+hi default link scdocListMarker         scdocOrderedListMarker
+hi default link scdocLineBreak          Special
+hi default link scdocTableSpecifier     Statement
+hi default link scdocTableEntry         Statement
 
-hi link scdocPreDelimiter       Delimiter
+hi default link scdocFirstLineError        Error
+hi default link scdocCommentError          Error
+hi default link scdocHeaderError           Error
+hi default link scdocIndentError           Error
+hi default link scdocTableError            Error
+hi default link scdocTableError Error
 
-hi scdocBold term=bold cterm=bold gui=bold
-hi scdocUnderline term=underline cterm=underline gui=underline
-hi link scdocBoldDelimiter scdocBold
-hi link scdocUnderlineDelimiter scdocUnderline
+hi default link scdocPreDelimiter       Delimiter
+
+hi default scdocBold term=bold cterm=bold gui=bold
+hi default scdocUnderline term=underline cterm=underline gui=underline
+hi default link scdocBoldDelimiter scdocBold
+hi default link scdocUnderlineDelimiter scdocUnderline