diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index db17381..005f82e 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -3,7 +3,7 @@
 " Maintainer:	   Hirohito Higashi <h.east.727 ATMARK gmail.com>
 "	   Doug Kearns <dougkearns@gmail.com>
 " URL:	   https://github.com/vim-jp/syntax-vim-ex
-" Last Change:	   2024 Jul 12
+" Last Change:	   2024 Jul 17
 " Former Maintainer: Charles E. Campbell
 
 " DO NOT CHANGE DIRECTLY.
@@ -29,11 +29,11 @@
 " regular vim commands {{{2
 " GEN_SYN_VIM: vimCommand normal, START_STR='syn keyword vimCommand contained', END_STR=''
 syn keyword vimCommand contained abo[veleft] abs[tract] al[l] ar[gs] arga[dd] argd[elete] argdo argded[upe] arge[dit] argg[lobal] argl[ocal] argu[ment] as[cii] b[uffer] bN[ext] ba[ll] bad[d] balt bd[elete] bel[owright] bf[irst] bl[ast] bm[odified] bn[ext] bo[tright] bp[revious] br[ewind] brea[k] breaka[dd] breakd[el] breakl[ist] bro[wse] buffers bufd[o] bun[load] bw[ipeout] c[hange] cN[ext] cNf[ile] cabo[ve] cad[dbuffer] cadde[xpr] caddf[ile] caf[ter] cal[l] cb[uffer] cbe[fore] cbel[ow] cbo[ttom] cc ccl[ose] cd cdo ce[nter] cex[pr] cf[ile] cfd[o] cfir[st] cg[etfile] cgetb[uffer] cgete[xpr] chd[ir] changes che[ckpath] checkt[ime] chi[story] cl[ist] cla[st] class clo[se] cle[arjumps] cn[ext] cnew[er] cnf[ile] co[py] col[der] colo[rscheme] com[mand] comc[lear] comp[iler]
-syn keyword vimCommand contained con[tinue] conf[irm] cons[t] cope[n] cp[revious] cpf[ile] cq[uit] cr[ewind] cs[cope] cst[ag] cw[indow] d[elete] delm[arks] deb[ug] debugg[reedy] defc[ompile] defe[r] delc[ommand] delf[unction] di[splay] dif[fupdate] diffg[et] diffo[ff] diffp[atch] diffpu[t] diffs[plit] difft[his] dig[raphs] disa[ssemble] dj[ump] dli[st] dr[op] ds[earch] dsp[lit] e[dit] ea[rlier] el[se] elsei[f] em[enu] en[dif] endin[terface] endc[lass] ende[num] endfo[r] endt[ry] endw[hile] ene[w] enu[m] ev[al] ex exi[t] exp[ort] exu[sage] f[ile] files filet[ype] filt[er] fin[d] fina[l] finall[y] fini[sh] fir[st] fix[del] fo[ld] foldc[lose] foldd[oopen] folddoc[losed] foldo[pen] for g[lobal] go[to] gr[ep] grepa[dd] gu[i] gv[im] h[elp] helpc[lose] helpf[ind] helpg[rep]
-syn keyword vimCommand contained helpt[ags] ha[rdcopy] hi[ghlight] hid[e] his[tory] ho[rizontal] if ij[ump] il[ist] imp[ort] int[ro] inte[rface] is[earch] isp[lit] j[oin] ju[mps] k kee[pmarks] keepj[umps] keepp[atterns] keepa[lt] l[ist] lN[ext] lNf[ile] la[st] lab[ove] lan[guage] lad[dexpr] laddb[uffer] laddf[ile] laf[ter] lat[er] lb[uffer] lbe[fore] lbel[ow] lbo[ttom] lc[d] lch[dir] lcl[ose] lcs[cope] ld[o] le[ft] lefta[bove] let lex[pr] leg[acy] lf[ile] lfd[o] lfir[st] lg[etfile] lgetb[uffer] lgete[xpr] lgr[ep] lgrepa[dd] lh[elpgrep] lhi[story] ll lla[st] lli[st] lmak[e] lne[xt] lnew[er] lnf[ile] lo[adview] loadk[eymap] loc[kmarks] lockv[ar] lol[der] lop[en] lp[revious] lpf[ile] lr[ewind] lt[ag] lua luad[o] luaf[ile] lv[imgrep] lvimgrepa[dd] lw[indow] ls m[ove]
-syn keyword vimCommand contained ma[rk] mak[e] marks menut[ranslate] mes[sages] mk[exrc] mks[ession] mksp[ell] mkv[imrc] mkvie[w] mod[e] mz[scheme] mzf[ile] n[ext] nb[key] nbc[lose] nbs[tart] noa[utocmd] noh[lsearch] nos[wapfile] nu[mber] o[pen] ol[dfiles] on[ly] opt[ions] ow[nsyntax] p[rint] pa[ckadd] packl[oadall] pc[lose] pe[rl] perld[o] ped[it] po[p] pp[op] pre[serve] prev[ious] pro[mptfind] promptr[epl] prof[ile] profd[el] ps[earch] pt[ag] ptN[ext] ptf[irst] ptj[ump] ptl[ast] ptn[ext] ptp[revious] ptr[ewind] pts[elect] pu[t] pub[lic] pw[d] py[thon] pyd[o] pyf[ile] py3 py3d[o] python3 py3f[ile] pyx pyxd[o] pythonx pyxf[ile] q[uit] quita[ll] qa[ll] r[ead] rec[over] red[o] redi[r] redr[aw] redraws[tatus] redrawt[abline] reg[isters] res[ize] ret[ab] retu[rn]
-syn keyword vimCommand contained rew[ind] ri[ght] rightb[elow] ru[ntime] rub[y] rubyd[o] rubyf[ile] rund[o] rv[iminfo] sN[ext] sa[rgument] sal[l] san[dbox] sav[eas] sb[uffer] sbN[ext] sba[ll] sbf[irst] sbl[ast] sbm[odified] sbn[ext] sbp[revious] sbr[ewind] sc[riptnames] scripte[ncoding] scriptv[ersion] scs[cope] setf[iletype] sf[ind] sfir[st] sh[ell] si[malt] sig[n] sil[ent] sla[st] sn[ext] so[urce] sor[t] sp[lit] spe[llgood] spelld[ump] spelli[nfo] spellr[epall] spellra[re] spellu[ndo] spellw[rong] spr[evious] sr[ewind] st[op] sta[g] star[tinsert] startg[replace] startr[eplace] stat[ic] stopi[nsert] stj[ump] sts[elect] sun[hide] sus[pend] sv[iew] sw[apname] synti[me] sync[bind] smi[le] t tN[ext] ta[g] tags tab tabc[lose] tabd[o] tabe[dit] tabf[ind] tabfir[st]
-syn keyword vimCommand contained tabm[ove] tabl[ast] tabn[ext] tabnew tabo[nly] tabp[revious] tabN[ext] tabr[ewind] tabs tc[d] tch[dir] tcl tcld[o] tclf[ile] te[aroff] ter[minal] tf[irst] thi[s] tj[ump] tl[ast] tn[ext] to[pleft] tp[revious] tr[ewind] try ts[elect] ty[pe] u[ndo] undoj[oin] undol[ist] unh[ide] unl[et] unlo[ckvar] uns[ilent] up[date] v[global] ve[rsion] verb[ose] vert[ical] vi[sual] vie[w] vim[grep] vimgrepa[dd] vim9[cmd] viu[sage] vne[w] vs[plit] w[rite] wN[ext] wa[ll] wh[ile] wi[nsize] winc[md] wind[o] winp[os] wn[ext] wp[revious] wq wqa[ll] wu[ndo] wv[iminfo] x[it] xa[ll] xr[estore] y[ank] z dl dell delel deletl deletel dp dep delp delep deletp deletep a i
+syn keyword vimCommand contained con[tinue] conf[irm] cons[t] cope[n] cp[revious] cpf[ile] cq[uit] cr[ewind] cs[cope] cst[ag] cw[indow] d[elete] delm[arks] deb[ug] debugg[reedy] defc[ompile] defe[r] delc[ommand] delf[unction] di[splay] dif[fupdate] diffg[et] diffo[ff] diffp[atch] diffpu[t] diffs[plit] difft[his] dig[raphs] disa[ssemble] dj[ump] dli[st] dr[op] ds[earch] dsp[lit] e[dit] ea[rlier] el[se] elsei[f] em[enu] en[dif] endin[terface] endc[lass] ende[num] endfo[r] endt[ry] endw[hile] ene[w] enu[m] ev[al] ex exi[t] exp[ort] exu[sage] f[ile] files filet[ype] filt[er] fin[d] finall[y] fini[sh] fir[st] fix[del] fo[ld] foldc[lose] foldd[oopen] folddoc[losed] foldo[pen] g[lobal] go[to] gr[ep] grepa[dd] gu[i] gv[im] h[elp] helpc[lose] helpf[ind] helpg[rep] helpt[ags]
+syn keyword vimCommand contained ha[rdcopy] hi[ghlight] hid[e] his[tory] ho[rizontal] if ij[ump] il[ist] imp[ort] int[ro] inte[rface] is[earch] isp[lit] j[oin] ju[mps] k kee[pmarks] keepj[umps] keepp[atterns] keepa[lt] l[ist] lN[ext] lNf[ile] la[st] lab[ove] lan[guage] lad[dexpr] laddb[uffer] laddf[ile] laf[ter] lat[er] lb[uffer] lbe[fore] lbel[ow] lbo[ttom] lc[d] lch[dir] lcl[ose] lcs[cope] ld[o] le[ft] lefta[bove] lex[pr] leg[acy] lf[ile] lfd[o] lfir[st] lg[etfile] lgetb[uffer] lgete[xpr] lgr[ep] lgrepa[dd] lh[elpgrep] lhi[story] ll lla[st] lli[st] lmak[e] lne[xt] lnew[er] lnf[ile] lo[adview] loadk[eymap] loc[kmarks] lockv[ar] lol[der] lop[en] lp[revious] lpf[ile] lr[ewind] lt[ag] lua luad[o] luaf[ile] lv[imgrep] lvimgrepa[dd] lw[indow] ls m[ove] ma[rk] mak[e]
+syn keyword vimCommand contained marks menut[ranslate] mes[sages] mk[exrc] mks[ession] mksp[ell] mkv[imrc] mkvie[w] mod[e] mz[scheme] mzf[ile] n[ext] nb[key] nbc[lose] nbs[tart] noa[utocmd] noh[lsearch] nos[wapfile] nu[mber] o[pen] ol[dfiles] on[ly] opt[ions] ow[nsyntax] p[rint] pa[ckadd] packl[oadall] pc[lose] pe[rl] perld[o] ped[it] po[p] pp[op] pre[serve] prev[ious] pro[mptfind] promptr[epl] prof[ile] profd[el] ps[earch] pt[ag] ptN[ext] ptf[irst] ptj[ump] ptl[ast] ptn[ext] ptp[revious] ptr[ewind] pts[elect] pu[t] pub[lic] pw[d] py[thon] pyd[o] pyf[ile] py3 py3d[o] python3 py3f[ile] pyx pyxd[o] pythonx pyxf[ile] q[uit] quita[ll] qa[ll] r[ead] rec[over] red[o] redi[r] redr[aw] redraws[tatus] redrawt[abline] reg[isters] res[ize] ret[ab] retu[rn] rew[ind] ri[ght]
+syn keyword vimCommand contained rightb[elow] ru[ntime] rub[y] rubyd[o] rubyf[ile] rund[o] rv[iminfo] sN[ext] sa[rgument] sal[l] san[dbox] sav[eas] sb[uffer] sbN[ext] sba[ll] sbf[irst] sbl[ast] sbm[odified] sbn[ext] sbp[revious] sbr[ewind] sc[riptnames] scripte[ncoding] scriptv[ersion] scs[cope] setf[iletype] sf[ind] sfir[st] sh[ell] si[malt] sig[n] sil[ent] sla[st] sn[ext] so[urce] sor[t] sp[lit] spe[llgood] spelld[ump] spelli[nfo] spellr[epall] spellra[re] spellu[ndo] spellw[rong] spr[evious] sr[ewind] st[op] sta[g] star[tinsert] startg[replace] startr[eplace] stat[ic] stopi[nsert] stj[ump] sts[elect] sun[hide] sus[pend] sv[iew] sw[apname] synti[me] sync[bind] smi[le] t tN[ext] ta[g] tags tab tabc[lose] tabd[o] tabe[dit] tabf[ind] tabfir[st] tabm[ove] tabl[ast]
+syn keyword vimCommand contained tabn[ext] tabnew tabo[nly] tabp[revious] tabN[ext] tabr[ewind] tabs tc[d] tch[dir] tcl tcld[o] tclf[ile] te[aroff] ter[minal] tf[irst] thi[s] tj[ump] tl[ast] tn[ext] to[pleft] tp[revious] tr[ewind] try ts[elect] ty[pe] u[ndo] undoj[oin] undol[ist] unh[ide] unlo[ckvar] uns[ilent] up[date] v[global] ve[rsion] verb[ose] vert[ical] vi[sual] vie[w] vim[grep] vimgrepa[dd] vim9[cmd] viu[sage] vne[w] vs[plit] w[rite] wN[ext] wa[ll] wh[ile] wi[nsize] winc[md] wind[o] winp[os] wn[ext] wp[revious] wq wqa[ll] wu[ndo] wv[iminfo] x[it] xa[ll] xr[estore] y[ank] z dl dell delel deletl deletel dp dep delp delep deletp deletep a i
 
 " Lower priority for _new_ to distinguish constructors from the command.
 syn match   vimCommand contained	"\<new\>(\@!"
@@ -115,7 +115,11 @@
 "--- syntax here and above generated by mkvimvim ---
 " Special Vim Highlighting (not automatic) {{{1
 
-" Set up folding commands for this syntax highlighting file {{{2
+" Set up commands for this syntax highlighting file {{{2
+
+com! -nargs=* Vim9 execute <q-args> s:vim9script ? "" : "contained"
+com! -nargs=* VimL execute <q-args> s:vim9script ? "contained" : ""
+
 if exists("g:vimsyn_folding") && g:vimsyn_folding =~# '[afhHlmpPrt]'
  if g:vimsyn_folding =~# 'a'
   com! -nargs=* VimFolda <args> fold
@@ -198,6 +202,14 @@
  let s:vimsyn_maxlines= 60
 endif
 
+" Nulls {{{2
+" =====
+Vim9 syn keyword  vim9Null	null null_blob null_channel null_class null_dict null_function null_job null_list null_object null_partial null_string
+
+" Booleans {{{2
+" ========
+Vim9 syn keyword vim9Boolean	true false
+
 " Numbers {{{2
 " =======
 syn case ignore
@@ -211,7 +223,8 @@
 syn case match
 
 " All vimCommands are contained by vimIsCommand. {{{2
-syn cluster vimCmdList	contains=vimAbb,vimAddress,vimAutoCmd,vimAugroup,vimBehave,vimCatch,vimDef,@vimEcho,vimEnddef,vimEndfunction,vimExecute,vimIsCommand,vimExtCmd,vimFor,vimFunction,vimGlobal,vimHighlight,vimLet,vimMap,vimMark,vimMatch,vimNotFunc,vimNorm,vimSet,vimSleep,vimSyntax,vimThrow,vimUnlet,vimUnmap,vimUserCmd,vimMenu,vimMenutranslate
+syn cluster vimCmdList	contains=vimAbb,vimAddress,vimAutoCmd,vimAugroup,vimBehave,vimCatch,vimConst,vimDef,@vimEcho,vimEnddef,vimEndfunction,vimExecute,vimIsCommand,vimExtCmd,vimFor,vimFunction,vimGlobal,vimHighlight,vimLet,vimMap,vimMark,vimMatch,vimNotFunc,vimNorm,vimSet,vimSleep,vimSyntax,vimThrow,vimUnlet,vimUnmap,vimUserCmd,vimMenu,vimMenutranslate,@vim9CmdList
+syn cluster vim9CmdList	contains=vim9Const,vim9Final,vim9For,vim9Var
 syn match vimCmdSep	"[:|]\+"	skipwhite nextgroup=@vimCmdList,vimSubst1
 syn match vimIsCommand	"\<\%(\h\w*\|[23]mat\%[ch]\)\>"	contains=vimCommand
 syn match vimVar	      contained	"\<\h[a-zA-Z0-9#_]*\>"
@@ -222,7 +235,8 @@
 syn match vimFBVar      contained   "\<[bwglstav]:\h[a-zA-Z0-9#_]*\>"
 syn keyword vimCommand  contained	in
 
-syn cluster vimExprList contains=vimEnvvar,vimFunc,vimFuncVar,vimNumber,vimOper,vimOperParen,vimLetRegister,vimString,vimVar
+syn cluster vimExprList	contains=vimEnvvar,vimFunc,vimNumber,vimOper,vimOperParen,vimLetRegister,vimString,vimVar,@vim9ExprList
+syn cluster vim9ExprList	contains=vim9Boolean,vim9Null
 
 " Insertions And Appends: insert append {{{2
 "   (buftype != nofile test avoids having append, change, insert show up in the command window)
@@ -276,8 +290,8 @@
 
 " Operators: {{{2
 " =========
-syn cluster	vimOperGroup	contains=vimEnvvar,vimFunc,vimFuncVar,vimOper,vimOperParen,vimNumber,vimString,vimRegister,@vimContinue,vim9Comment,vimVar
-syn match	vimOper	"||\|&&\|[-+*/%.!]"				skipwhite nextgroup=vimString,vimSpecFile
+syn cluster	vimOperGroup	contains=vimEnvvar,vimFunc,vimFuncVar,vimOper,vimOperParen,vimNumber,vimString,vimRegister,@vimContinue,vim9Comment,vimVar,vimBoolean,vimNull
+syn match	vimOper	"||\|&&\|[-+*/%.!]"			skipwhite nextgroup=vimString,vimSpecFile
 syn match	vimOper	"\%#=1\(==\|!=\|>=\|<=\|=\~\|!\~\|>\|<\|=\|!\~#\)[?#]\{0,2}"	skipwhite nextgroup=vimString,vimSpecFile
 syn match	vimOper	"\(\<is\|\<isnot\)[?#]\{0,2}\>"			skipwhite nextgroup=vimString,vimSpecFile
 syn region	vimOperParen 	matchgroup=vimParenSep	start="(" end=")" contains=@vimOperGroup
@@ -292,8 +306,8 @@
 syn cluster	vimDefList	contains=vimFuncBang,vimFunctionError,vimDefKey,vimFuncSID,Tag
 
 syn cluster	vimFuncBodyCommon	contains=@vimCmdList,vimCmplxRepeat,vimContinue,vimCtrlChar,vimDef,vimEnvvar,vimFBVar,vimFunc,vimFunction,vimLetHereDoc,vimNotation,vimNotFunc,vimNumber,vimOper,vimOperParen,vimRegister,vimSearch,vimSpecFile,vimString,vimSubst,vimFuncFold
-syn cluster	vimFuncBodyList	contains=@vimFuncBodyCommon,vimComment,vimLineComment,vimFuncVar,vimInsert
-syn cluster	vimDefBodyList	contains=@vimFuncBodyCommon,vim9Comment,vim9LineComment
+syn cluster	vimFuncBodyList	contains=@vimFuncBodyCommon,vimComment,vimLineComment,vimFuncVar,vimInsert,vimConst,vimLet
+syn cluster	vimDefBodyList	contains=@vimFuncBodyCommon,vim9Comment,vim9LineComment,vim9Const,vim9Final,vim9Var,vim9Null,vim9Boolean,vim9For
 
 syn region	vimFuncPattern	contained		matchgroup=vimOper start="/" end="$" contains=@vimSubstList
 syn match	vimFunction	"\<fu\%[nction]\>"	skipwhite nextgroup=vimCmdSep,vimComment,vimFuncPattern contains=vimFuncKey
@@ -314,7 +328,7 @@
 syn keyword	vimMethodName	contained	empty len string
 
 syn region	vimFuncParams	contained	matchgroup=Delimiter start="(" skip=+\n\s*\\\|\n\s*"\\ + end=")" skipwhite skipnl nextgroup=vimFuncBody,vimFuncComment,vimEndfunction,vimFuncMod,vim9CommentError	contains=vimFuncParam,@vimContinue
-syn region	vimDefParams	contained	matchgroup=Delimiter start="("		   end=")" skipwhite skipnl nextgroup=vimDefBody,vimDefComment,vimEnddef,vimReturnType,vimCommentError	contains=vimDefParam,vim9Comment
+syn region	vimDefParams	contained	matchgroup=Delimiter start="("		   end=")" skipwhite skipnl nextgroup=vimDefBody,vimDefComment,vimEnddef,vimReturnType,vimCommentError	contains=vimDefParam,vim9Comment,vimFuncParamEquals
 syn match	vimFuncParam	contained	"\<\h\w*\>\|\.\.\."	skipwhite nextgroup=vimFuncParamEquals
 syn match	vimDefParam	contained	"\<\h\w*\>"		skipwhite nextgroup=vimParamType,vimFuncParamEquals
 
@@ -338,9 +352,9 @@
 
 " Types: {{{2
 " =====
-" vimTypes : new for vim9
+
 syn region	vimReturnType	contained	start=":\s" end="$" matchgroup=vim9Comment end="\ze[#"]" skipwhite skipnl nextgroup=vimDefBody,vimDefComment,vimEnddef,vimCommentError contains=vimTypeSep transparent
-syn match	vimParamType	contained	":\s\+\a"			skipwhite skipnl nextgroup=vimFuncParamEquals   	        contains=vimTypeSep,@vimType
+syn match	vimParamType	contained	":\s"	skipwhite skipnl nextgroup=@vimType contains=vimTypeSep
 
 syn match	vimTypeSep	contained	":\s\@=" skipwhite nextgroup=@vimType
 syn keyword	vimType	contained	any blob bool channel float job number string void
@@ -416,35 +430,23 @@
 endif
 
 if s:vim9script
-  syn match	vimComment	excludenl +\s"[^\-:.%#=*].*$+lc=1	contains=@vimCommentGroup,vimCommentString contained
-  syn match	vimComment	+\<endif\s\+".*$+lc=5	contains=@vimCommentGroup,vimCommentString contained
-  syn match	vimComment	+\<else\s\+".*$+lc=4	contains=@vimCommentGroup,vimCommentString contained
-  " Vim9 comments - TODO: might be highlighted while they don't work
-  syn match	vim9Comment	excludenl +\s#[^{].*$+lc=1	contains=@vimCommentGroup,vimCommentString
-  syn match	vim9Comment	+\<endif\s\+#[^{].*$+lc=5	contains=@vimCommentGroup,vimCommentString
-  syn match	vim9Comment	+\<else\s\+#[^{].*$+lc=4	contains=@vimCommentGroup,vimCommentString
-  " Vim9 comment inside expression
-  " syn match	vim9Comment	+\s\zs#[^{].*$+ms=s+1	contains=@vimCommentGroup,vimCommentString
-  " syn match	vim9Comment	+^\s*#[^{].*$+		contains=@vimCommentGroup,vimCommentString
-  " syn match	vim9Comment	+^\s*#$+		contains=@vimCommentGroup,vimCommentString
-
   syn cluster vimComment contains=vim9Comment
 else
-  syn match	vimComment	excludenl +\s"[^\-:.%#=*].*$+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 comments - TODO: might be highlighted while they don't work
-  syn match	vim9Comment	excludenl +\s#[^{].*$+lc=1	contains=@vimCommentGroup,vimCommentString contained
-  syn match	vim9Comment	+\<endif\s\+#[^{].*$+lc=5	contains=@vimCommentGroup,vimCommentString contained
-  syn match	vim9Comment	+\<else\s\+#[^{].*$+lc=4	contains=@vimCommentGroup,vimCommentString contained
-  " Vim9 comment inside expression
-  syn match	vim9Comment	+\s\zs#[^{].*$+ms=s+1	contains=@vimCommentGroup,vimCommentString contained
-  syn match	vim9Comment	+^\s*#[^{].*$+		contains=@vimCommentGroup,vimCommentString contained
-  syn match	vim9Comment	+^\s*#$+		contains=@vimCommentGroup,vimCommentString contained
-
   syn cluster vimComment contains=vimComment
 endif
 
+VimL syn match	vimComment	excludenl +\s"[^\-:.%#=*].*$+lc=1	contains=@vimCommentGroup,vimCommentString
+VimL syn match	vimComment	+\<endif\s\+".*$+lc=5	contains=@vimCommentGroup,vimCommentString
+VimL syn match	vimComment	+\<else\s\+".*$+lc=4	contains=@vimCommentGroup,vimCommentString
+" Vim9 comments - TODO: might be highlighted while they don't work
+Vim9 syn match	vim9Comment	excludenl +\s#[^{].*$+lc=1	contains=@vimCommentGroup,vimCommentString
+Vim9 syn match	vim9Comment	+\<endif\s\+#[^{].*$+lc=5	contains=@vimCommentGroup,vimCommentString
+Vim9 syn match	vim9Comment	+\<else\s\+#[^{].*$+lc=4	contains=@vimCommentGroup,vimCommentString
+" Vim9 comment inside expression
+Vim9 syn match	vim9Comment	+\s\zs#[^{].*$+ms=s+1	contains=@vimCommentGroup,vimCommentString contained
+Vim9 syn match	vim9Comment	+^\s*#[^{].*$+		contains=@vimCommentGroup,vimCommentString contained
+Vim9 syn match	vim9Comment	+^\s*#$+		contains=@vimCommentGroup,vimCommentString contained
+
 syn match	vim9CommentError	contained	"#.*"
 syn match	vimCommentError	contained	+".*+
 
@@ -544,22 +546,32 @@
 syn match	vimSetSep	contained	"[,:]"
 syn match	vimSetMod	contained	"&vim\=\|[!&?<]\|all&"
 
-" Let And Var: {{{2
-" ===========
-syn keyword	vimLet	let		skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc,vimLetRegister,vimVarList
-syn keyword	vimConst	cons[t]		skipwhite nextgroup=vimVar,vimLetHereDoc,vimVarList
-syn region	vimVarList	contained	start="\[" end="]" contains=vimVar,vimContinue
+" Variable Declarations: {{{2
+" =====================
+VimL syn keyword	vimLet	let		skipwhite nextgroup=vimVar,vimFuncVar,vimLetRegister,vimVarList
+VimL syn keyword	vimConst	cons[t]		skipwhite nextgroup=vimVar,vimVarList
+syn region	vimVarList	contained	start="\[" end="]" contains=vimVar,@vimContinue
 
-syn keyword	vimUnlet	unl[et]		skipwhite nextgroup=vimUnletBang,vimUnletVars
+VimL syn keyword	vimUnlet	unl[et]		skipwhite nextgroup=vimUnletBang,vimUnletVars
 syn match	vimUnletBang	contained	"!"	skipwhite nextgroup=vimUnletVars
 syn region	vimUnletVars	contained	start="$\I\|\h" skip="\n\s*\\" end="$" end="|" contains=vimVar,vimEnvvar,vimContinue,vimString,vimNumber
 
 VimFoldh syn region vimLetHereDoc	matchgroup=vimLetHereDocStart start='=<<\s*\%(trim\s\+\%(eval\s\+\)\=\|eval\s\+\%(trim\s\+\)\=\)\=\z(\L\S*\)' matchgroup=vimLetHereDocStop end='^\s*\z1\s*$' extend
-syn keyword	vimLet	var		skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
+
+Vim9 syn keyword	vim9Const	const	skipwhite nextgroup=vim9Variable,vim9VariableList
+Vim9 syn keyword	vim9Final	final	skipwhite nextgroup=vim9Variable,vim9VariableList
+Vim9 syn keyword	vim9Var	var	skipwhite nextgroup=vim9Variable,vim9VariableList
+
+syn match	vim9Variable	contained	"\<\h\w*\>"	skipwhite nextgroup=vimTypeSep,vimLetHereDoc
+syn region	vim9VariableList	contained	start="\[" end="]" contains=vim9Variable,@vimContinue
 
 " For: {{{2
 " ===
-syn keyword	vimFor	for	skipwhite nextgroup=vimVar,vimVarList
+if s:vim9script
+  syn keyword	vim9For	for	skipwhite nextgroup=vim9Variable,vim9VariableList
+else
+  syn keyword	vimFor	for	skipwhite nextgroup=vimVar,vimVarList
+endif
 
 " Abbreviations: {{{2
 " =============
@@ -879,13 +891,9 @@
 
 " Beginners - Patterns that involve ^ {{{2
 " =========
-if s:vim9script
-  syn region	vim9LineComment	start=+^[ \t:]*\zs#.*$+ skip=+\n\s*\\\|\n\s*#\\ + end="$" contains=@vimCommentGroup,vimCommentString,vim9CommentTitle
-  syn region	vimLineComment	start=+^[ \t:]*\zs".*$+ skip=+\n\s*\\\|\n\s*"\\ + end="$" contains=@vimCommentGroup,vimCommentString,vimCommentTitle contained
-else
-  syn region	vimLineComment	start=+^[ \t:]*\zs".*$+ skip=+\n\s*\\\|\n\s*"\\ + end="$" contains=@vimCommentGroup,vimCommentString,vimCommentTitle
-  syn region	vim9LineComment	start=+^[ \t:]*\zs#.*$+ skip=+\n\s*\\\|\n\s*#\\ + end="$" contains=@vimCommentGroup,vimCommentString,vim9CommentTitle contained
-endif
+Vim9 syn region	vim9LineComment	start=+^[ \t:]*\zs#.*$+ skip=+\n\s*\\\|\n\s*#\\ + end="$" contains=@vimCommentGroup,vimCommentString,vim9CommentTitle
+VimL syn region	vimLineComment	start=+^[ \t:]*\zs".*$+ skip=+\n\s*\\\|\n\s*"\\ + end="$" 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	vim9CommentTitle	'#\s*\%([sS]:\|\h\w*#\)\=\u\w*\(\s\+\u\w*\)*:'hs=s+1	contained contains=vim9CommentTitleLeader,vimTodo,@vimCommentGroup
 
@@ -1128,7 +1136,6 @@
   hi def link vimBufnrWarn	vimWarn
  endif
 
- hi def link vim9Vim9ScriptArg	Special
  hi def link vimAbb	vimCommand
  hi def link vimAddress	vimMark
  hi def link vimAugroupBang	vimBang
@@ -1147,11 +1154,8 @@
  hi def link vimCommand	Statement
  hi def link vimComment	Comment
  hi def link vimCommentError	vimError
- hi def link vim9Comment	Comment
- hi def link vim9CommentError	vimError
  hi def link vimCommentString	vimString
  hi def link vimCommentTitle	PreProc
- hi def link vim9CommentTitle	PreProc
  hi def link vimCondHL	vimCommand
  hi def link vimConst	vimCommand
  hi def link vimContinue	Special
@@ -1218,7 +1222,6 @@
  hi def link vimLetHereDocStop	Special
  hi def link vimLetRegister	Special
  hi def link vimLineComment	vimComment
- hi def link vim9LineComment	vimComment
  hi def link vimMapBang	vimBang
  hi def link vimMapModKey	vimFuncSID
  hi def link vimMapMod	vimBracket
@@ -1264,7 +1267,6 @@
  hi def link vimSetMod	vimOption
  hi def link vimSetSep	Statement
  hi def link vimSetString	vimString
- hi def link vim9Vim9Script	vimCommand
  hi def link vimShebang	PreProc
  hi def link vimSleep	vimCommand
  hi def link vimSleepArg	Constant
@@ -1325,6 +1327,20 @@
  hi def link vimUserFunc	Normal
  hi def link vimVar	Identifier
  hi def link vimWarn	WarningMsg
+
+ hi def link vim9Boolean	Boolean
+ hi def link vim9Comment	Comment
+ hi def link vim9CommentError	vimError
+ hi def link vim9CommentTitle	PreProc
+ hi def link vim9Const	vimCommand
+ hi def link vim9Final	vimCommand
+ hi def link vim9For	vimCommand
+ hi def link vim9LineComment	vimComment
+ hi def link vim9Null	Constant
+ hi def link vim9Var	vimCommand
+ hi def link vim9Variable	vimVar
+ hi def link vim9Vim9Script	vimCommand
+ hi def link vim9Vim9ScriptArg	Special
 endif
 
 " Current Syntax Variable: {{{2
@@ -1332,6 +1348,8 @@
 
 " ---------------------------------------------------------------------
 " Cleanup: {{{1
+delc Vim9
+delc VimL
 delc VimFolda
 delc VimFoldf
 delc VimFoldh