diff --git a/runtime/compiler/shellcheck.vim b/runtime/compiler/shellcheck.vim
new file mode 100644
index 0000000..7550439
--- /dev/null
+++ b/runtime/compiler/shellcheck.vim
@@ -0,0 +1,25 @@
+" Vim compiler file
+" Compiler:	ShellCheck
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2020 Sep 4
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "shellcheck"
+
+if exists(":CompilerSet") != 2		" older Vim always used :setlocal
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+CompilerSet makeprg=shellcheck\ -f\ gcc
+CompilerSet errorformat=%f:%l:%c:\ %trror:\ %m\ [SC%n],
+		       \%f:%l:%c:\ %tarning:\ %m\ [SC%n],
+		       \%f:%l:%c:\ %tote:\ %m\ [SC%n],
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index d56f211..9355d1f 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -1,4 +1,4 @@
-*autocmd.txt*   For Vim version 8.2.  Last change: 2020 Aug 02
+*autocmd.txt*   For Vim version 8.2.  Last change: 2020 Sep 25
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -631,7 +631,7 @@
 
 							*CursorHold*
 CursorHold			When the user doesn't press a key for the time
-				specified with 'updatetime'.  Not re-triggered
+				specified with 'updatetime'.  Not triggered
 				until the user has pressed a key (i.e. doesn't
 				fire every 'updatetime' ms if you leave Vim to
 				make some coffee. :)  See |CursorHold-example|
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 50e5995..58c390e 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 8.2.  Last change: 2020 Sep 22
+*eval.txt*	For Vim version 8.2.  Last change: 2020 Sep 25
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -877,7 +877,7 @@
 All expressions within one level are parsed from left to right.
 
 
-expr1							*expr1* *E109*
+expr1							*expr1* *trinary* *E109*
 -----
 
 expr2 ? expr1 : expr1
diff --git a/runtime/doc/filetype.txt b/runtime/doc/filetype.txt
index 539b96e..4eb7462 100644
--- a/runtime/doc/filetype.txt
+++ b/runtime/doc/filetype.txt
@@ -1,4 +1,4 @@
-*filetype.txt*  For Vim version 8.2.  Last change: 2019 Jul 16
+*filetype.txt*  For Vim version 8.2.  Last change: 2020 Sep 28
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -397,6 +397,13 @@
 3.  Docs for the default filetype plugins.		*ftplugin-docs*
 
 
+AWK							*ft-awk-plugin*
+
+Support for features specific to GNU Awk, like @include, can be enabled by
+setting: >
+	let g:awk_is_gawk = 1
+
+
 CHANGELOG						*ft-changelog-plugin*
 
 Allows for easy entrance of Changelog entries in Changelog files.  There are
diff --git a/runtime/doc/gui.txt b/runtime/doc/gui.txt
index 985fdea..ac8febe 100644
--- a/runtime/doc/gui.txt
+++ b/runtime/doc/gui.txt
@@ -1,4 +1,4 @@
-*gui.txt*       For Vim version 8.2.  Last change: 2020 Mar 16
+*gui.txt*       For Vim version 8.2.  Last change: 2020 Sep 28
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -547,15 +547,6 @@
 5.2 Creating New Menus					*creating-menus*
 
 				*:me*  *:menu*   *:noreme*  *:noremenu*
-				*:am*  *:amenu*  *:an*      *:anoremenu*
-				*:nme* *:nmenu*  *:nnoreme* *:nnoremenu*
-				*:ome* *:omenu*  *:onoreme* *:onoremenu*
-				*:vme* *:vmenu*  *:vnoreme* *:vnoremenu*
-				*:xme* *:xmenu*  *:xnoreme* *:xnoremenu*
-				*:sme* *:smenu*  *:snoreme* *:snoremenu*
-				*:ime* *:imenu*  *:inoreme* *:inoremenu*
-				*:cme* *:cmenu*  *:cnoreme* *:cnoremenu*
-				*:tlm* *:tlmenu* *:tln*     *:tlnoremenu*
 				*E330* *E327* *E331* *E336* *E333*
 				*E328* *E329* *E337* *E792*
 To create a new menu item, use the ":menu" commands.  They are mostly like
@@ -596,6 +587,7 @@
 this menu can be used.  The second part is shown as "Open     :e".  The ":e"
 is right aligned, and the "O" is underlined, to indicate it is the shortcut.
 
+					*:am*  *:amenu*  *:an*      *:anoremenu*
 The ":amenu" command can be used to define menu entries for all modes at once,
 except for Terminal mode.  To make the command work correctly, a character is
 automatically inserted for some modes:
@@ -634,6 +626,30 @@
 Note that <Esc> in Cmdline mode executes the command, like in a mapping.  This
 is Vi compatible.  Use CTRL-C to quit Cmdline mode.
 
+		*:nme* *:nmenu*  *:nnoreme* *:nnoremenu* *:nunme* *:nunmenu*
+Menu commands starting with "n" work in Normal mode. |mapmode-n|
+
+		*:ome* *:omenu*  *:onoreme* *:onoremenu* *:ounme* *:ounmenu*
+Menu commands starting with "o" work in Operator-pending mode. |mapmode-o|
+
+		*:vme* *:vmenu*  *:vnoreme* *:vnoremenu* *:vunme* *:vunmenu*
+Menu commands starting with "v" work in Visual mode. |mapmode-v|
+
+		*:xme* *:xmenu*  *:xnoreme* *:xnoremenu* *:xunme* *:xunmenu*
+Menu commands starting with "x" work in Visual and Select mode. |mapmode-x|
+
+		*:sme* *:smenu*  *:snoreme* *:snoremenu* *:sunme* *:sunmenu*
+Menu commands starting with "s" work in Select mode. |mapmode-s|
+
+		*:ime* *:imenu*  *:inoreme* *:inoremenu* *:iunme* *:iunmenu*
+Menu commands starting with "i" work in Insert mode. |mapmode-i|
+
+		*:cme* *:cmenu*  *:cnoreme* *:cnoremenu* *:cunme* *:cunmenu*
+Menu commands starting with "c" work in Cmdline mode. |mapmode-c|
+
+		*:tlm* *:tlmenu* *:tln*     *:tlnoremenu* *:tlu*   *:tlunmenu*
+Menu commands starting with "tl" work in Terminal mode. |mapmode-t|
+
 						*:menu-<silent>* *:menu-silent*
 To define a menu which will not be echoed on the command line, add
 "<silent>" as the first argument.  Example: >
@@ -897,14 +913,6 @@
 
 						*:unme*  *:unmenu*
 						*:aun*   *:aunmenu*
-						*:nunme* *:nunmenu*
-						*:ounme* *:ounmenu*
-						*:vunme* *:vunmenu*
-						*:xunme* *:xunmenu*
-						*:sunme* *:sunmenu*
-						*:iunme* *:iunmenu*
-						*:cunme* *:cunmenu*
-						*:tlu*   *:tlunmenu*
 To delete a menu item or a whole submenu, use the unmenu commands, which are
 analogous to the unmap commands.  Eg: >
     :unmenu! Edit.Paste
diff --git a/runtime/doc/popup.txt b/runtime/doc/popup.txt
index 856132d..118bc9b 100644
--- a/runtime/doc/popup.txt
+++ b/runtime/doc/popup.txt
@@ -1,4 +1,4 @@
-*popup.txt*  For Vim version 8.2.  Last change: 2020 Sep 08
+*popup.txt*  For Vim version 8.2.  Last change: 2020 Sep 27
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -711,7 +711,7 @@
 			By default a double line is used all around when
 			'encoding' is "utf-8" and 'ambiwidth' is "single",
 			otherwise ASCII characters are used.
-	scrollbar	non-zero: show a scrollbar when the text doesn't fit.
+	scrollbar	1 or true: show a scrollbar when the text doesn't fit.
 			zero: do not show a scrollbar.  Default is non-zero.
 			Also see |popup-scrollbar|.
 	scrollbarhighlight  Highlight group name for the scrollbar. The
diff --git a/runtime/doc/starting.txt b/runtime/doc/starting.txt
index f437c0e..9014a42 100644
--- a/runtime/doc/starting.txt
+++ b/runtime/doc/starting.txt
@@ -1,4 +1,4 @@
-*starting.txt*  For Vim version 8.2.  Last change: 2020 Feb 04
+*starting.txt*  For Vim version 8.2.  Last change: 2020 Sep 23
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -513,6 +513,8 @@
 		  'nocompatible': use Vim defaults
 		- no |gvimrc| script is loaded
 		- no viminfo file is read or written
+		Note that a following "-u" argument overrules the effect of
+		"-u DEFAULTS".
 
 							*-x*
 -x		Use encryption to read/write files.  Will prompt for a key,
diff --git a/runtime/doc/tags b/runtime/doc/tags
index b9d7e03..49baae6 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -6461,6 +6461,7 @@
 ft-asmh8300-syntax	syntax.txt	/*ft-asmh8300-syntax*
 ft-aspperl-syntax	syntax.txt	/*ft-aspperl-syntax*
 ft-aspvbs-syntax	syntax.txt	/*ft-aspvbs-syntax*
+ft-awk-plugin	filetype.txt	/*ft-awk-plugin*
 ft-bash-syntax	syntax.txt	/*ft-bash-syntax*
 ft-basic-syntax	syntax.txt	/*ft-basic-syntax*
 ft-c-omni	insert.txt	/*ft-c-omni*
@@ -7756,6 +7757,7 @@
 matchdelete()	eval.txt	/*matchdelete()*
 matchend()	eval.txt	/*matchend()*
 matchfuzzy()	eval.txt	/*matchfuzzy()*
+matchfuzzypos()	eval.txt	/*matchfuzzypos()*
 matchit-install	usr_05.txt	/*matchit-install*
 matchlist()	eval.txt	/*matchlist()*
 matchparen	pi_paren.txt	/*matchparen*
@@ -9649,6 +9651,7 @@
 toupper()	eval.txt	/*toupper()*
 tr()	eval.txt	/*tr()*
 trim()	eval.txt	/*trim()*
+trinary	eval.txt	/*trinary*
 trojan-horse	starting.txt	/*trojan-horse*
 true	vim9.txt	/*true*
 true-variable	eval.txt	/*true-variable*
@@ -10040,6 +10043,7 @@
 vim9-declarations	usr_46.txt	/*vim9-declarations*
 vim9-differences	vim9.txt	/*vim9-differences*
 vim9-export	vim9.txt	/*vim9-export*
+vim9-final	vim9.txt	/*vim9-final*
 vim9-gotchas	vim9.txt	/*vim9-gotchas*
 vim9-import	vim9.txt	/*vim9-import*
 vim9-rationale	vim9.txt	/*vim9-rationale*
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index 03c9fce..d47ecca 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 8.2.  Last change: 2020 Sep 19
+*todo.txt*      For Vim version 8.2.  Last change: 2020 Sep 28
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -38,14 +38,19 @@
 							*known-bugs*
 -------------------- Known bugs and current work -----------------------
 
-Why does Test_invalid_sid() not work in the GUI?
+Popup windows: don't send any keys from ":normal" to popup filter?
+  Can drop ex_normal_busy_done then.
 
-Add matchfuzzy() and matchfuzzypos() Yegappan, #6947
-    should be ready now
+Move Test_let_* from test_vim9_script to test_vim9_assign
 
+Modifiers in GTK: issue #6457.  CTRL-6 should work, like CTRL-@ and CTRL-_.
+
+3 October: remove using :let in Vim9 script.
+
+Go back to not using string/list/dict as falsy/thruthy boolean?
+    or only make "||" and "&&" result in a boolean?
 Making everything work:
-- Fix memory leak in test_vim9_func (through compile_nested_function and
-  get_lambda_tv())
+- Fix memory leaks in test_vim9_assign, remove "if 0"
 - Fix memory leaks in test_vim9_script
 - At the Vim9 script level, keep script variables local to the block they are
   declared in, like in Javascript (using :let).
@@ -78,6 +83,7 @@
 - Make sure that where a callback is expected a function can be used (without
   quotes). E.g. sort() and map().  Also at the script level.
 - assignment to more complex lval: list[1][2][3] = 8
+  Also "list[0] += value".  test in Test_assign_dict_unknown_type().
 - ":put" with ISN_PUT does not handle range correctly, e.g. ":$-2put".
   Add command to parse range at runtime?
 - Make map() give an error if the resulting type is wrong.
@@ -92,9 +98,10 @@
 - ISN_CHECKTYPE could use check_argtype()
 - give error for variable name:
       let p = function('NoSuchFunc')
-- Give runtime error if function argument is wrong.
-	def Increment(nr: number)
-	range(3)->Increment()
+- If a :def function is called with a function reference, compile it to get
+  the function type.
+	def Filter(x: string, Cond: func(string): bool)
+	Filter(x, { v -> v =~ '^b' })
 - Expand `=expr` in :next, :argedit, :argadd, :argdelete, :drop
 - Expand `=expr` in :vimgrep, :vimgrepadd, :lvimgrep, :lvimgrepadd
 - Expand `=expr` in :mkspell
@@ -122,6 +129,8 @@
 - When evaluating constants for script variables, some functions could work:
     has('asdf'), len('string')
 - Implement "as Name" in "import Item as Name from ..."
+- Implement using imported items at script level from "import * as X" in
+  eval_variable().  Should pass the ".xxx" that follows and return that.
 - Disallow unlet for local/script/imported vars
 - Make "++nr" work.
 - Make closures work:
@@ -332,6 +341,8 @@
 Patch for Template string: #4634
 Have another look at the implementation.
 
+Valgrind warns for uninitialized values in f_term_dumpwrite().
+
 Add the <=> (spaceship) operator and "cond ?< expr ?= expr ?> expr"
     replace this:
 	let left = GetLeftFunc()
@@ -341,6 +352,8 @@
 	let res = GetLeftFunc() <=> GetRightFunc() ?< lower ?= equal ?> upper
 Patch to make :q work with local arglist. (Christian Brabandt, #6286)
 
+Why does Test_invalid_sid() not work in the GUI?
+
 Lua: updating wrong buffer when using newly created, unloaded buffer.
 (#6539)
 
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 4e5d2f3..86879dd 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -65,6 +65,35 @@
 
 THIS IS STILL UNDER DEVELOPMENT - ANYTHING CAN BREAK - ANYTHING CAN CHANGE
 
+Overview ~
+
+Brief summary of the differences you will most often encounter when using Vim9
+script and `:def` functions; details are below:
+- Comments start with #, not ": >
+  	echo "hello"   # comment
+- Using a backslash for line continuation is hardly ever needed: >
+  	echo "hello "
+	     .. yourName
+	     .. ", how are you?"
+- White space is required in many places.
+- Assign values without `:let`, declare variables with `:var`: >
+  	var count = 0
+	count += 3
+- Constants can be declared with `:final` and `:const`: >
+  	final matches = []		  # add matches
+	const names = ['Betty', 'Peter']  # cannot be changed
+- `:final` cannot be used as an abbreviation of `:finally`.
+- Variables and functions are script-local by default.
+- Functions are declared with argument types and return type: >
+	def CallMe(count: number, message: string): bool
+- Call functions without `:call`: >
+  	writefile(['done'], 'file.txt')
+- You cannot use `:xit`, `:t`, `:append`, `:change`, `:insert` or curly-braces
+  names.
+- A range before a command must be prefixed with a colon: >
+  	:%s/this/that
+
+
 Comments starting with # ~
 
 In legacy Vim script comments start with double quote.  In Vim9 script
diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 65102dd..ba1b795 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1,7 +1,7 @@
 " Vim support file to detect file types
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2020 Aug 04
+" Last Change:	2020 Sep 28
 
 " Listen very carefully, I will say this only once
 if exists("did_load_filetypes")
@@ -1203,7 +1203,7 @@
 au BufNewFile,BufRead *.php,*.php\d,*.phtml,*.ctp	setf php
 
 " PHP config
-au BufNewFile,BufRead php.ini,php.ini-*		setf dosini
+au BufNewFile,BufRead php.ini-*			setf dosini
 
 " Pike and Cmod
 au BufNewFile,BufRead *.pike,*.pmod		setf pike
diff --git a/runtime/ftplugin/awk.vim b/runtime/ftplugin/awk.vim
index dcefc85..9809fec 100644
--- a/runtime/ftplugin/awk.vim
+++ b/runtime/ftplugin/awk.vim
@@ -1,9 +1,10 @@
 " Vim filetype plugin
 " Language:	awk, nawk, gawk, mawk
 " Maintainer:	Antonio Colombo <azc100@gmail.com>
-" Last Change:	2017 Feb 17
+" Last Change:	2020 Sep 28
 
 " This plugin was prepared by Mark Sikora
+" This plugin was updated as proposed by Doug Kearns
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -13,6 +14,42 @@
 " Don't load another plugin for this buffer
 let b:did_ftplugin = 1
 
-let b:undo_ftplugin = "setl commentstring<"
+let s:cpo_save = &cpo
+set cpo&vim
 
+setlocal comments=:#
 setlocal commentstring=#\ %s
+setlocal formatoptions-=t formatoptions+=croql
+
+setlocal define=function
+setlocal suffixesadd+=.awk
+
+let b:undo_ftplugin = "setl fo< com< cms< def< sua<" .
+		    \ " | unlet! b:browsefilter"
+
+" TODO: set this in scripts.vim?
+if exists("g:awk_is_gawk")
+  setlocal include=@include
+  setlocal suffixesadd+=.gawk
+  if has("unix") || has("win32unix")
+    setlocal formatprg=gawk\ -f-\ -o/dev/stdout
+    let b:undo_ftplugin .= " | setl fp<"
+  endif
+
+  let path = system("gawk 'BEGIN { printf ENVIRON[\"AWKPATH\"] }'")
+  let path = substitute(path, '^\.\=:\|:\.\=$\|:\.\=:', ',,', 'g') " POSIX cwd
+  let path = substitute(path, ':', ',', 'g')
+
+  let &l:path = path
+  let b:undo_ftplugin .= " | setl inc< path<"
+endif
+
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
+  let b:browsefilter = "Awk Source Files (*.awk,*.gawk)\t*.awk;*.gawk\n" .
+		     \ "All Files (*.*)\t*.*\n"
+endif
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+" vim: nowrap sw=2 sts=2 ts=8
diff --git a/runtime/indent/vim.vim b/runtime/indent/vim.vim
index 3809943..4b0867d 100644
--- a/runtime/indent/vim.vim
+++ b/runtime/indent/vim.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Vim script
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2020 Jul 19
+" Last Change:	2020 Sep 27
 
 " Only load this indent file when no other was loaded.
 if exists("b:did_indent")
@@ -10,7 +10,7 @@
 let b:did_indent = 1
 
 setlocal indentexpr=GetVimIndent()
-setlocal indentkeys+==end,=},=else,=cat,=fina,=END,0\\,0=\"\\\ 
+setlocal indentkeys+==end,=},=else,=cat,=finall,=END,0\\,0=\"\\\ 
 setlocal indentkeys-=0#
 
 let b:undo_indent = "setl indentkeys< indentexpr<"
@@ -93,7 +93,7 @@
   else
     " A line starting with :au does not increment/decrement indent.
     if prev_text !~ '^\s*au\%[tocmd]'
-      let i = match(prev_text, '\(^\||\)\s*\({\|\(if\|wh\%[ile]\|for\|try\|cat\%[ch]\|fina\%[lly]\|fu\%[nction]\|def\|el\%[seif]\)\>\)')
+      let i = match(prev_text, '\(^\||\)\s*\(export\s\+\)\?\({\|\(if\|wh\%[ile]\|for\|try\|cat\%[ch]\|fina\|finall\%[y]\|fu\%[nction]\|def\|el\%[seif]\)\>\)')
       if i >= 0
 	let ind += shiftwidth()
 	if strpart(prev_text, i, 1) == '|' && has('syntax_items')
@@ -117,7 +117,7 @@
 
   " Subtract a 'shiftwidth' on a :endif, :endwhile, :catch, :finally, :endtry,
   " :endfun, :enddef, :else and :augroup END.
-  if cur_text =~ '^\s*\(ene\@!\|}\|cat\|fina\|el\|aug\%[roup]\s\+[eE][nN][dD]\)'
+  if cur_text =~ '^\s*\(ene\@!\|}\|cat\|finall\|el\|aug\%[roup]\s\+[eE][nN][dD]\)'
     let ind = ind - shiftwidth()
   endif
 
diff --git a/runtime/syntax/man.vim b/runtime/syntax/man.vim
index 56f6d10..4e08cd7 100644
--- a/runtime/syntax/man.vim
+++ b/runtime/syntax/man.vim
@@ -4,7 +4,7 @@
 " Previous Maintainer:	SungHyun Nam <goweol@gmail.com>
 " Previous Maintainer:	Gautam H. Mudunuri <gmudunur@informatica.com>
 " Version Info:
-" Last Change:	2020 Apr 30
+" Last Change:	2020 Sep 19
 
 " Additional highlighting by Johannes Tanzler <johannes.tanzler@aon.at>:
 "	* manSubHeading
@@ -21,8 +21,8 @@
 syn case ignore
 
 syn match  manReference       "\f\+([1-9][a-z]\=)"
-syn match  manSectionHeading  "^[a-z][a-z -]*[a-z]$"
-syn match  manSubHeading      "^\s\{3\}[a-z][a-z -]*[a-z]$"
+syn match  manSectionHeading  "^\a.*$"
+syn match  manSubHeading      "^\s\{3\}\a.*$"
 syn match  manOptionDesc      "^\s*[+-][a-z0-9]\S*"
 syn match  manLongOptionDesc  "^\s*--[a-z0-9-]\S*"
 " syn match  manHistory		"^[a-z].*last change.*$"
diff --git a/runtime/syntax/sh.vim b/runtime/syntax/sh.vim
index 3a2a6e7..b668056 100644
--- a/runtime/syntax/sh.vim
+++ b/runtime/syntax/sh.vim
@@ -2,8 +2,8 @@
 " Language:		shell (sh) Korn shell (ksh) bash (sh)
 " Maintainer:		Charles E. Campbell <NcampObell@SdrPchip.AorgM-NOSPAM>
 " Previous Maintainer:	Lennart Schultz <Lennart.Schultz@ecmwf.int>
-" Last Change:		Apr 14, 2020
-" Version:		190
+" Last Change:		Aug 10, 2020
+" Version:		193
 " URL:		http://www.drchip.org/astronaut/vim/index.html#SYNTAX_SH
 " For options and settings, please use:      :help ft-sh-syntax
 " This file includes many ideas from Eric Brunet (eric.brunet@ens.fr)
@@ -20,8 +20,8 @@
 elseif getline(1) =~ '\<bash$'
  let b:is_bash      = 1
 elseif getline(1) =~ '\<dash$'
- let b:is_posix     = 1
-elseif !exists("g:is_kornshell") && !exists("g:is_bash") && !exists("g:is_posix") && !exists("g:is_sh")
+ let b:is_dash      = 1
+elseif !exists("g:is_kornshell") && !exists("g:is_bash") && !exists("g:is_posix") && !exists("g:is_sh") && !exists("g:is_dash")
  let s:shell = ""
  if executable("/bin/sh")
   let s:shell = resolve("/bin/sh")
@@ -33,7 +33,7 @@
  elseif s:shell =~ 'bash$'
   let b:is_bash = 1
  elseif s:shell =~ 'dash$'
-  let b:is_posix = 1
+  let b:is_dash = 1
  endif
  unlet s:shell
 endif
@@ -45,7 +45,7 @@
 " So, when the user sets "g:is_bash", "g:is_kornshell",
 " or "g:is_posix", a b:is_sh is converted into b:is_bash/b:is_kornshell,
 " respectively.
-if !exists("b:is_kornshell") && !exists("b:is_bash")
+if !exists("b:is_kornshell") && !exists("b:is_bash") && !exists("b:is_dash")
   if exists("g:is_posix") && !exists("g:is_kornshell")
    let g:is_kornshell= g:is_posix
   endif
@@ -59,11 +59,21 @@
     if exists("b:is_sh")
       unlet b:is_sh
     endif
+  elseif exists("g:is_dash")
+    let b:is_dash= 1
+    if exists("b:is_sh")
+      unlet b:is_sh
+    endif
   else
     let b:is_sh= 1
   endif
 endif
 
+" if b:is_dash, set b:is_posix too
+if exists("b:is_dash")
+ let b:is_posix= 1
+endif
+
 " set up default g:sh_fold_enabled {{{1
 " ================================
 if !exists("g:sh_fold_enabled")
@@ -133,7 +143,7 @@
 " COMBAK: removing shEscape fromshDblQuoteList fails ksh04:43
 syn cluster shDblQuoteList	contains=shArithmetic,shCommandSub,shCommandSubBQ,shDeref,shDerefSimple,shPosnParm,shCtrlSeq,shSpecial,shSpecialDQ
 syn cluster shDerefList	contains=shDeref,shDerefSimple,shDerefVar,shDerefSpecial,shDerefWordError,shDerefPSR,shDerefPPS
-syn cluster shDerefVarList	contains=shDerefOff,shDerefOp,shDerefVarArray,shDerefOpError
+syn cluster shDerefVarList	contains=shDerefOffset,shDerefOp,shDerefVarArray,shDerefOpError
 syn cluster shEchoList	contains=shArithmetic,shCommandSub,shCommandSubBQ,shDeref,shDerefSimple,shEscape,shExSingleQuote,shExDoubleQuote,shSingleQuote,shDoubleQuote,shCtrlSeq,shEchoQuote
 syn cluster shExprList1	contains=shCharClass,shNumber,shOperator,shExSingleQuote,shExDoubleQuote,shSingleQuote,shDoubleQuote,shExpr,shDblBrace,shDeref,shDerefSimple,shCtrlSeq
 syn cluster shExprList2	contains=@shExprList1,@shCaseList,shTest
@@ -358,7 +368,7 @@
 endif
 syn region  shSingleQuote	matchgroup=shQuote start=+'+ end=+'+		contains=@Spell	nextgroup=shSpecialStart,shSpecialSQ
 syn region  shDoubleQuote	matchgroup=shQuote start=+\%(\%(\\\\\)*\\\)\@<!"+ skip=+\\.+ end=+"+	contains=@shDblQuoteList,shStringSpecial,@Spell	nextgroup=shSpecialStart
-syn region  shDoubleQuote	matchgroup=shQuote start=+"+ matchgroup=shSpecial skip=+\\"+ end=+"+		contained	contains=@shDblQuoteList,shStringSpecial,@Spell	nextgroup=shSpecialStart
+syn region  shDoubleQuote	matchgroup=shQuote start=+"+ matchgroup=shSpecial skip=+\\"+ matchgroup=shQuote end=+"+		contained	contains=@shDblQuoteList,shStringSpecial,@Spell	nextgroup=shSpecialStart
 syn match   shStringSpecial	"[^[:print:] \t]"			contained
 syn match   shStringSpecial	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"			nextgroup=shComment
 syn match   shSpecialSQ	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"		contained	nextgroup=shBkslshSnglQuote,@shNoZSList
@@ -424,6 +434,9 @@
  syn region shSetList oneline matchgroup=shSet start="\<\%(set\|unset\)\>[/a-zA-Z_]\@!" end="\ze[;|#)]\|$"		matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+="	contains=@shIdList nextgroup=shComment
 elseif exists("b:is_kornshell") || exists("b:is_posix")
  syn match  shSet "^\s*set\ze\s\+$"
+ if exists("b:is_dash")
+  syn region shSetList oneline matchgroup=shSet start="\<\%(local\)\>\ze[/]\@!" end="$"	                 matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+[#=]"	contains=@shIdList
+ endif
  syn region shSetList oneline matchgroup=shSet start="\<\(export\)\>\ze[/]\@!" end="$"		matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+[#=]"	contains=@shIdList
  syn region shSetList oneline matchgroup=shSet start="\<\%(set\|unset\>\)\ze[/a-zA-Z_]\@!" end="\ze[;|#)]\|$"		matchgroup=shSetListDelim end="\ze[}|);&]" matchgroup=NONE end="\ze\s\+[#=]"	contains=@shIdList nextgroup=shComment
 else
@@ -471,14 +484,14 @@
 " bash: ${!prefix*} and ${#parameter}: {{{1
 " ====================================
 if exists("b:is_bash")
- syn region shDeref	matchgroup=PreProc start="\${!" end="\*\=}"	contains=@shDerefList,shDerefOff
+ syn region shDeref	matchgroup=PreProc start="\${!" end="\*\=}"	contains=@shDerefList,shDerefOffset
  syn match  shDerefVar	contained	"{\@<=!\h\w*"		nextgroup=@shDerefVarList
 endif
 if exists("b:is_kornshell")
  syn match  shDerefVar	contained	"{\@<=!\h\w*[[:alnum:]_.]*"	nextgroup=@shDerefVarList
 endif
 
-syn match  shDerefSpecial	contained	"{\@<=[-*@?0]"		nextgroup=shDerefOp,shDerefOpError
+syn match  shDerefSpecial	contained	"{\@<=[-*@?0]"		nextgroup=shDerefOp,shDerefOffset,shDerefOpError
 syn match  shDerefSpecial	contained	"\({[#!]\)\@<=[[:alnum:]*@_]\+"	nextgroup=@shDerefVarList,shDerefOp
 syn match  shDerefVar	contained	"{\@<=\h\w*"		nextgroup=@shDerefVarList
 syn match  shDerefVar	contained	'\d'                            nextgroup=@shDerefVarList
@@ -502,6 +515,7 @@
 "        bash : ${parameter^^pattern} Case modification
 "        bash : ${parameter,pattern}  Case modification
 "        bash : ${parameter,,pattern} Case modification
+"        bash : ${@:start:qty}        display command line arguments from start to start+qty-1 (inferred)
 syn cluster shDerefPatternList	contains=shDerefPattern,shDerefString
 if !exists("g:sh_no_error")
  syn match shDerefOpError	contained	":[[:punct:]]"
@@ -522,17 +536,19 @@
 syn region shDerefString	contained	matchgroup=shDerefDelim start=+\%(\\\)\@<!"+ skip=+\\"+ end=+"+	contains=@shDblQuoteList,shStringSpecial
 syn match  shDerefString	contained	"\\["']"	nextgroup=shDerefPattern
 
-if exists("b:is_bash")
- " bash : ${parameter:offset}
- " bash : ${parameter:offset:length}
- syn region shDerefOff	contained	start=':[^-=?+]' end='\ze:'	end='\ze}'	contains=shDeref,shDerefSimple,shDerefEscape	nextgroup=shDerefLen,shDeref,shDerefSimple
- syn region shDerefOff	contained	start=':\s-'	end='\ze:'	end='\ze}'	contains=shDeref,shDerefSimple,shDerefEscape	nextgroup=shDerefLen,shDeref,shDerefSimple
+if exists("b:is_bash") || exists("b:is_kornshell") || exists("b:is_posix")
+ " bash ksh posix : ${parameter:offset}
+ " bash ksh posix : ${parameter:offset:length}
+ syn region shDerefOffset	contained	start=':[^-=?+]' end='\ze:'	end='\ze}'	contains=shDeref,shDerefSimple,shDerefEscape	nextgroup=shDerefLen,shDeref,shDerefSimple
+ syn region shDerefOffset	contained	start=':\s-'	end='\ze:'	end='\ze}'	contains=shDeref,shDerefSimple,shDerefEscape	nextgroup=shDerefLen,shDeref,shDerefSimple
  syn match  shDerefLen	contained	":[^}]\+"	contains=shDeref,shDerefSimple,shArithmetic
+endif
 
+if exists("b:is_bash")
  " bash : ${parameter//pattern/string}
  " bash : ${parameter//pattern}
  syn match  shDerefPPS	contained	'/\{1,2}'	nextgroup=shDerefPPSleft
- syn region shDerefPPSleft	contained	start='.'	skip=@\%(\\\\\)*\\/@ matchgroup=shDerefOp	end='/' end='\ze}'	nextgroup=shDerefPPSright	contains=@shPPSLeftList
+ syn region shDerefPPSleft	contained	start='.'	skip=@\%(\\\\\)*\\/@ matchgroup=shDerefOp	end='/' end='\ze}' end='"'	nextgroup=shDerefPPSright	contains=@shPPSLeftList
  syn region shDerefPPSright	contained	start='.'	skip=@\%(\\\\\)\+@		end='\ze}'				contains=@shPPSRightList
 
  " bash : ${parameter/#substring/replacement}
@@ -675,8 +691,8 @@
    hi def link bashSpecialVariables	shShellVariables
    hi def link bashStatement		shStatement
    hi def link shCharClass		shSpecial
-   hi def link shDerefOff		shDerefOp
-   hi def link shDerefLen		shDerefOff
+   hi def link shDerefOffset		shDerefOp
+   hi def link shDerefLen		shDerefOffset
  endif
  if exists("b:is_kornshell") || exists("b:is_posix")
    hi def link kshSpecialVariables	shShellVariables
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index 9b20392..d4dab09 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:	July 15, 2020
-" Version:	8.0-41
+" Last Change:	Aug 30, 2020
+" Version:	8.0-43
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_VIM
 " Automatically generated keyword lists: {{{1
 
@@ -236,7 +236,7 @@
 " Functions : Tag is provided for those who wish to highlight tagged functions {{{2
 " =========
 syn cluster	vimFuncList	contains=vimCommand,vimFunctionError,vimFuncKey,Tag,vimFuncSID
-syn cluster	vimFuncBodyList	contains=vimAbb,vimAddress,vimAugroupKey,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimContinue,vimCtrlChar,vimEcho,vimEchoHL,vimExecute,vimIsCommand,vimFBVar,vimFunc,vimFunction,vimFuncVar,vimGlobal,vimHighlight,vimIsCommand,vimLet,vimLetHereDoc,vimLineComment,vimMap,vimMark,vimNorm,vimNotation,vimNotFunc,vimNumber,vimOper,vimOperParen,vimRegion,vimRegister,vimSearch,vimSet,vimSpecFile,vimString,vimSubst,vimSynLine,vimUnmap,vimUserCommand
+syn cluster	vimFuncBodyList	contains=vimAbb,vimAddress,vimAugroupKey,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimContinue,vimCtrlChar,vimEcho,vimEchoHL,vimEnvvar,vimExecute,vimIsCommand,vimFBVar,vimFunc,vimFunction,vimFuncVar,vimGlobal,vimHighlight,vimIsCommand,vimLet,vimLetHereDoc,vimLineComment,vimMap,vimMark,vimNorm,vimNotation,vimNotFunc,vimNumber,vimOper,vimOperParen,vimRegion,vimRegister,vimSearch,vimSet,vimSpecFile,vimString,vimSubst,vimSynLine,vimUnmap,vimUserCommand
 syn match	vimFunction	"\<\(fu\%[nction]\|def\)!\=\s\+\%(<[sS][iI][dD]>\|[sSgGbBwWtTlL]:\)\=\%(\i\|[#.]\|{.\{-1,}}\)*\ze\s*("	contains=@vimFuncList nextgroup=vimFuncBody
 
 if exists("g:vimsyn_folding") && g:vimsyn_folding =~# 'f'
@@ -266,7 +266,7 @@
 " =======================
 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]!\=\>.*$"	contains=vimUserAttrb,vimUserAttrbError,vimUserCommand,@vimUserCmdList
+syn match	vimUserCmd	"\<com\%[mand]!\=\>.*$"	contains=vimUserAttrb,vimUserAttrbError,vimUserCommand,@vimUserCmdList,vimComFilter
 syn match	vimUserAttrbError	contained	"-\a\+\ze\s"
 syn match	vimUserAttrb	contained	"-nargs=[01*?+]"	contains=vimUserAttrbKey,vimOper
 syn match	vimUserAttrb	contained	"-complete="		contains=vimUserAttrbKey,vimOper nextgroup=vimUserAttrbCmplt,vimUserCmdError
@@ -295,12 +295,13 @@
 syn match	vimComment	+\<else\s\+".*$+lc=4	contains=@vimCommentGroup,vimCommentString
 syn region	vimCommentString	contained oneline start='\S\s\+"'ms=e	end='"'
 " Vim9 comments - TODO: might be highlighted while they don't work
-syn match	vim9Comment	excludenl +^#[^{].*$+	contains=@vimCommentGroup,vimCommentString
 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
 
 " Environment Variables: {{{2
 " =====================
@@ -370,7 +371,8 @@
 syn match	vimAddress	"%\ze\a"	skipwhite nextgroup=vimString,vimSubst1
 
 syn match	vimFilter 		"^!!\=[^"]\{-}\(|\|\ze\"\|$\)"	contains=vimOper,vimSpecFile
-syn match	vimFilter contained	"!!\=[^"]\{-}\(|\|\ze\"\|$\)"	contains=vimOper,vimSpecFile
+syn match	vimFilter    contained	"!!\=[^"]\{-}\(|\|\ze\"\|$\)"	contains=vimOper,vimSpecFile
+syn match	vimComFilter contained	"|!!\=[^"]\{-}\(|\|\ze\"\|$\)"      contains=vimOper,vimSpecFile
 
 " Complex Repeats: (:h complex-repeat) {{{2
 " ===============
@@ -386,7 +388,7 @@
 
 " Let: {{{2
 " ===
-syn keyword	vimLet	let	unl[et]	skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
+syn keyword	vimLet	let var	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,vim9Comment
 
 " Abbreviations: {{{2
@@ -397,8 +399,9 @@
 " =======
 syn match	vimAutoEventList	contained	"\(!\s\+\)\=\(\a\+,\)*\a\+"	contains=vimAutoEvent nextgroup=vimAutoCmdSpace
 syn match	vimAutoCmdSpace	contained	"\s\+"	nextgroup=vimAutoCmdSfxList
-syn match	vimAutoCmdSfxList	contained	"\S*"
+syn match	vimAutoCmdSfxList	contained	"\S*"	skipwhite nextgroup=vimAutoCmdMod
 syn keyword	vimAutoCmd	au[tocmd] do[autocmd] doautoa[ll]	skipwhite nextgroup=vimAutoEventList
+syn match	vimAutoCmdMod	"\(++\)\=\(once\|nested\)"
 
 " Echo And Execute: -- prefer strings! {{{2
 " ================
@@ -634,7 +637,7 @@
 " Beginners - Patterns that involve ^ {{{2
 " =========
 syn match	vimLineComment	+^[ \t:]*".*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
-syn match	vim9LineComment	+^[ \t:]*#.*$+	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
@@ -861,6 +864,7 @@
  hi def link vimAutoCmdOpt	vimOption
  hi def link vimAutoCmd	vimCommand
  hi def link vimAutoEvent	Type
+ hi def link vimAutoCmdMod	Special
  hi def link vimAutoSet	vimCommand
  hi def link vimBehaveModel	vimBehave
  hi def link vimBehave	vimCommand