patch 8.2.4505: Vim9: outdated "autocmd nested" still works Commit: https://github.com/vim/vim/commit/f07751457c39a645009c17cd837131f6bcdd7d55 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 4 20:10:38 2022 +0000 patch 8.2.4505: Vim9: outdated "autocmd nested" still works Problem: Vim9: outdated "autocmd nested" still works. Solution: Do not accept the :autocmd argument "nested" without "++" in Vim9 script.

vim9script

# Vim support file to switch off loading plugins for file types
#
# Maintainer:	Bram Moolenaar <Bram@vim.org>
# Last Change:	2022 Feb 09

if exists("g:did_load_ftplugin")
  unlet g:did_load_ftplugin
endif

# Remove all autocommands in the filetypeplugin group, if any exist.
if exists("#filetypeplugin")
  silent! au! filetypeplugin *
endif