chore: relax the Vim version requirement

refer: #2934

README.md

@@ -33,7 +33,7 @@ filetype and syntax plugin for LaTeX files.
 
 ## Requirements
 
-VimTeX requires Vim version 9.1 or Neovim version 0.9.5. The requirements
+VimTeX requires Vim version 8.2.3995 or Neovim version 0.9.5. The requirements
 were updated in April 2024 after the release of VimTeX 2.15. If you are stuck
 on older versions of Vim or Neovim, then you should not use the most recent
 version of VimTeX, but instead remain at the v2.15 tag.

doc/vimtex.txt

@@ -221,12 +221,12 @@ of its key features. Windows users should also read |vimtex-faq-windows|.
 
 Vim version ~
                                                          *vimtex_version_check*
-  VimTeX requires Vim version 9.1 or neovim version 0.9.5.  It will not
+  VimTeX requires Vim version 8.2.3995 or neovim version 0.9.5. It will not
   load for older versions, unless one adds >vim
 
     let g:vimtex_version_check = 0
 <
-  to one's `vimrc` file.  This might work, but issues due to older versions
+  to one's `vimrc` file. This might work, but issues due to older versions
   than the mentioned here will be ignored.
 
 Vim configuration ~

ftplugin/bib.vim

@@ -14,10 +14,10 @@ endif
 let b:did_ftplugin = 1
 
 if !(!get(g:, 'vimtex_version_check', 1)
-      \ || has('nvim-0.4.3')
-      \ || has('patch-8.0.1453'))
+      \ || has('nvim-0.9.5')
+      \ || has('patch-8.2.3995'))
   echoerr 'Error: VimTeX does not support your version of Vim'
-  echom 'Please update to Vim 8.0.1453 or neovim 0.4.3 or later!'
+  echom 'Please update to Vim 8.2.3995 or neovim 0.9.5 or later!'
   echom 'For more info, please see :h vimtex_version_check'
   finish
 endif

ftplugin/tex.vim

@@ -15,9 +15,9 @@ let b:did_ftplugin = 1
 
 if !(!get(g:, 'vimtex_version_check', 1)
       \ || has('nvim-0.9.5')
-      \ || has('patch-9.1.0'))
+      \ || has('patch-8.2.3995'))
   echoerr 'Error: VimTeX does not support your version of Vim'
-  echom 'Please update to Vim 9.1 or neovim 0.9.5 or later!'
+  echom 'Please update to Vim 8.2.3995 or neovim 0.9.5 or later!'
   echom 'For more info, please see :h vimtex_version_check'
   finish
 endif