Update runtime files.
diff --git a/runtime/syntax/debchangelog.vim b/runtime/syntax/debchangelog.vim
index 2d61206..eb82613 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: 2019 Sep 07
+" Last Change: 2019 Oct 20
" URL: https://salsa.debian.org/vim-team/vim-debian/blob/master/syntax/debchangelog.vim
" Standard syntax initialization
@@ -17,11 +17,33 @@
let s:urgency='urgency=\(low\|medium\|high\|emergency\|critical\)\( [^[:space:],][^,]*\)\='
let s:binNMU='binary-only=yes'
+let s:cpo = &cpo
+set cpo-=C
+let s:supported = [
+ \ 'oldstable', 'stable', 'testing', 'unstable', 'experimental',
+ \ 'wheezy', 'jessie', 'stretch', 'buster', 'bullseye', 'bookworm',
+ \ 'sid', 'rc-buggy',
+ \
+ \ 'trusty', 'xenial', 'bionic', 'disco', 'eoan', 'focal', 'devel'
+ \ ]
+let s:unsupported = [
+ \ 'frozen', 'buzz', 'rex', 'bo', 'hamm', 'slink', 'potato',
+ \ 'woody', 'sarge', 'etch', 'lenny', 'squeeze',
+ \
+ \ 'warty', 'hoary', 'breezy', 'dapper', 'edgy', 'feisty',
+ \ 'gutsy', 'hardy', 'intrepid', 'jaunty', 'karmic', 'lucid',
+ \ 'maverick', 'natty', 'oneiric', 'precise', 'quantal', 'raring', 'saucy',
+ \ 'utopic', 'vivid', 'wily', 'yakkety', 'zesty', 'artful', 'cosmic'
+ \ ]
+let &cpo=s:cpo
+
" Define some common expressions we can use later on
syn match debchangelogName contained "^[[:alnum:]][[:alnum:].+-]\+ "
exe 'syn match debchangelogFirstKV contained "; \('.s:urgency.'\|'.s:binNMU.'\)"'
exe 'syn match debchangelogOtherKV contained ", \('.s:urgency.'\|'.s:binNMU.'\)"'
-syn match debchangelogTarget contained "\v %(frozen|unstable|sid|%(testing|%(old)=stable)%(-proposed-updates|-security)=|experimental|%(squeeze|wheezy|jessie)-%(backports%(-sloppy)=|lts|security)|stretch%(-backports%(-sloppy)=|-security)=|buster%(-backports|-security)=|bullseye|bookworm|%(devel|precise|trusty|vivid|wily|xenial|yakkety|zesty|artful|bionic|cosmic|disco|eoan)%(-%(security|proposed|updates|backports|commercial|partner))=)+"
+exe 'syn match debchangelogTarget contained "\%( \%('.join(s:supported, '\|').'\)\>[-[:alnum:]]*\)\+"'
+exe 'syn match debchangelogUnsupportedTarget contained "\%( \%('.join(s:unsupported, '\|').'\)\>[-[:alnum:]]*\)\+"'
+syn keyword debchangelogUnreleased contained UNRELEASED
syn match debchangelogVersion contained "(.\{-})"
syn match debchangelogCloses contained "closes:\_s*\(bug\)\=#\=\_s\=\d\+\(,\_s*\(bug\)\=#\=\_s\=\d\+\)*"
syn match debchangelogLP contained "\clp:\s\+#\d\+\(,\s*#\d\+\)*"
@@ -29,7 +51,7 @@
syn match debchangelogEmail contained "<.\{-}>"
" Define the entries that make up the changelog
-syn region debchangelogHeader start="^[^ ]" end="$" contains=debchangelogName,debchangelogFirstKV,debchangelogOtherKV,debchangelogTarget,debchangelogVersion,debchangelogBinNMU oneline
+syn region debchangelogHeader start="^[^ ]" end="$" contains=debchangelogName,debchangelogFirstKV,debchangelogOtherKV,debchangelogTarget,debchangelogUnsupportedTarget,debchangelogUnreleased,debchangelogVersion,debchangelogBinNMU oneline
syn region debchangelogFooter start="^ [^ ]" end="$" contains=debchangelogEmail oneline
syn region debchangelogEntry start="^ " end="$" contains=debchangelogCloses,debchangelogLP oneline
@@ -44,6 +66,8 @@
hi def link debchangelogName Comment
hi def link debchangelogVersion Identifier
hi def link debchangelogTarget Identifier
+hi def link debchangelogUnsupportedTarget Identifier
+hi def link debchangelogUnreleased WarningMsg
hi def link debchangelogEmail Special
let b:current_syntax = 'debchangelog'