Commit: runtime(ssh): ignore case in 'keywordprg', update syntax script

[Christian Brabandt]

runtime(ssh): ignore case in 'keywordprg', update syntax script

Commit: https://github.com/vim/vim/commit/3697c6b020e6b5899a13e7c7cb105708ba2eb9d9
Author: Eisuke Kawashima <e-k...@users.noreply.github.com>
Date: Thu Mar 12 20:01:27 2026 +0000

runtime(ssh): ignore case in 'keywordprg', update syntax script

- ftplugin(sshdconfig): use "-I" for 'keywordprg' to search
case-insensitive in the man page
- syntax(sshdconfig,sshconfig): Mark "lowdelay", "throughput", and
"reliability" as deprecated for IPQoS, highlighting them as
errors/warnings to reflect OpenSSH 10.1p1 release

Reference:
https://www.openssh.org/releasenotes.html#10.1p1

closes: #19636

Signed-off-by: Eisuke Kawashima <e-k...@users.noreply.github.com>
Signed-off-by: Jakub Jelen <jak...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/ftplugin/sshconfig.vim b/runtime/ftplugin/sshconfig.vim
index 8a7b07830..a7f49e023 100644
--- a/runtime/ftplugin/sshconfig.vim
+++ b/runtime/ftplugin/sshconfig.vim
@@ -2,7 +2,7 @@
" Language: OpenSSH client configuration file
" Maintainer: This runtime file is looking for a new maintainer.
" Previous Maintainer: Nikolai Weibull <n...@bitwi.se>
-" Latest Revision: 2025-07-22 (use :hor term #17822)
+" Latest Revision: 2026-03-11 (`less -I`)

if exists("b:did_ftplugin")
finish
@@ -17,7 +17,7 @@ let b:undo_ftplugin = 'setlocal com< cms< fo<'

if has('unix') && executable('less') && exists(':terminal') == 2
command -buffer -nargs=1 SshconfigKeywordPrg
- \ silent exe 'hor term ' . 'env LESS= MANPAGER="less --pattern=''' . escape('^\s+' . <q-args> . '$', '\') . ''' --hilite-search" man ' . 'ssh_config'
+ \ silent exe 'hor term ' . 'env LESS= MANPAGER="less -I --pattern=''' . escape('^\s+' . <q-args> . '$', '\') . ''' --hilite-search" man ' . 'ssh_config'
setlocal iskeyword+=-
setlocal keywordprg=:SshconfigKeywordPrg
let b:undo_ftplugin .= '| setlocal keywordprg< iskeyword< | sil! delc -buffer SshconfigKeywordPrg'
diff --git a/runtime/syntax/sshconfig.vim b/runtime/syntax/sshconfig.vim
index b7ccd3919..4934b033c 100644
--- a/runtime/syntax/sshconfig.vim
+++ b/runtime/syntax/sshconfig.vim
@@ -6,13 +6,8 @@
" Contributor: Leonard Ehrenfried <leonard.e...@web.de>
" Karsten Hopp <kar...@redhat.com>
" Dean, Adam Kenneth <adam.k...@hpe.com>
-" Last Change: 2022 Nov 10
-" Last Update: 2026 Feb 24
-" Added RemoteCommand from pull request #4809
-" Included additional keywords from Martin.
-" Included PR #5753
-" Update missing keywords #19488
-" SSH Version: 8.5p1
+" Last Change: 2026 Mar 11
+" SSH Version: 10.1p1
"

" Setup
@@ -110,7 +105,8 @@ syn keyword sshconfigAddressFamily inet inet6

syn match sshconfigIPQoS "\<af[1-4][1-3]\>"
syn match sshconfigIPQoS "\<cs[0-7]\>"
-syn keyword sshconfigIPQoS ef le lowdelay throughput reliability
+syn keyword sshconfigIPQoS ef le
+syn keyword sshconfigIPQoSDeprecated lowdelay throughput reliability
syn keyword sshconfigKbdInteractive bsdauth pam skey

syn keyword sshconfigKexAlgo diffie-hellman-group1-sha1
@@ -288,6 +284,7 @@ hi def link sshconfigLogLevel sshconfigEnum
hi def link sshconfigSysLogFacility sshconfigEnum
hi def link sshconfigAddressFamily sshconfigEnum
hi def link sshconfigIPQoS sshconfigEnum
+hi def link sshconfigIPQoSDeprecated sshconfigDeprecated
hi def link sshconfigKbdInteractive sshconfigEnum
hi def link sshconfigKexAlgo sshconfigEnum
hi def link sshconfigTunnel sshconfigEnum
diff --git a/runtime/syntax/sshdconfig.vim b/runtime/syntax/sshdconfig.vim
index 381dccdd9..464aa764c 100644
--- a/runtime/syntax/sshdconfig.vim
+++ b/runtime/syntax/sshdconfig.vim
@@ -8,8 +8,8 @@
" Contributor: Karsten Hopp <kar...@redhat.com>
" Contributor: Fionn Fitzmaurice (github.com/fionn)
" Originally: 2009-07-09
-" Last Change: 2026-02-11
-" SSH Version: 10.2p1
+" Last Change: 2026-03-11
+" SSH Version: 10.1p1
"

" Setup
@@ -112,7 +112,8 @@ syn keyword sshdconfigCompression delayed

syn match sshdconfigIPQoS "\<af[1-4][1-3]\>"
syn match sshdconfigIPQoS "\<cs[0-7]\>"
-syn keyword sshdconfigIPQoS ef le lowdelay throughput reliability
+syn keyword sshdconfigIPQoS ef le
+syn keyword sshdconfigIPQoSDeprecated lowdelay throughput reliability

syn keyword sshdconfigKexAlgo diffie-hellman-group1-sha1
syn keyword sshdconfigKexAlgo diffie-hellman-group14-sha1
@@ -293,6 +294,7 @@ hi def link sshdconfigSysLogFacility sshdconfigEnum
hi def link sshdconfigVar sshdconfigEnum
hi def link sshdconfigCompression sshdconfigEnum
hi def link sshdconfigIPQoS sshdconfigEnum
+hi def link sshdconfigIPQoSDeprecated sshdconfigDeprecated
hi def link sshdconfigKexAlgo sshdconfigEnum
hi def link sshdconfigTunnel sshdconfigEnum
hi def link sshdconfigSubsystem sshdconfigEnum
@@ -301,6 +303,7 @@ hi def link sshdconfigEnum Function
hi def link sshdconfigSpecial Special
hi def link sshdconfigKeyword Keyword
hi def link sshdconfigMatch Type
+hi def link sshdconfigDeprecated Error

let b:current_syntax = "sshdconfig"