*v:sizeoflong*
- *v:sizeofpointer*

Events:
- *SafeStateAgain*
- *SigUSR1* Use |Signal| to detect `SIGUSR1` signal instead.

Options:
- *'aleph'* *'al'*
- antialias
- 'backspace' no longer supports number values. Instead:
    - for `backspace=0` set `backspace=` (empty)
    - for `backspace=1` set `backspace=indent,eol`
    - for `backspace=2` set `backspace=indent,eol,start` (default behavior in Nvim)
    - for `backspace=3` set `backspace=indent,eol,nostop`
- *'balloondelay'* *'bdlay'*
- *'ballooneval'* *'beval'* *'noballooneval'* *'nobeval'*
- *'balloonexpr'* *'bexpr'*
- bioskey (MS-DOS)
- conskey (MS-DOS)
- *'cp'* *'nocompatible'* *'nocp'* *'compatible'* (Nvim is always "nocompatible".)
- 'cpoptions' (gjpkHw<*- and all POSIX flags were removed)
- *'cryptmethod'* *'cm'* *'key'* (Vim encryption implementation)
- cscopepathcomp
- cscopeprg
- cscopequickfix
- cscoperelative
- cscopetag
- cscopetagorder
- cscopeverbose
- *'ed'* *'edcompatible'* *'noed'* *'noedcompatible'*
- 'encoding' ("utf-8" is always used)
- esckeys
- 'guioptions' "t" flag was removed
- *'guifontset'* *'gfs'* (Use 'guifont' instead.)
- *'guipty'* (Nvim uses pipes and PTYs consistently on all platforms.)
- 'highlight' (Names of builtin |highlight-groups| cannot be changed.)
- *'hkmap'* *'hk'* use `set keymap=hebrew` instead.
- *'hkmapp'* *'hkp'* use `set keymap=hebrewp` instead.
- keyprotocol
- *'pastetoggle'* *'pt'* Just Paste It.™ |paste| is handled automatically when
  you paste text using your terminal's or GUI's paste feature (CTRL-SHIFT-v,
  CMD-v (macOS), middle-click, …).
- *'imactivatefunc'* *'imaf'*
- *'imactivatekey'* *'imak'*
- *'imcmdline'* *'imc'* *'noimcmdline'* *'noimc'*
- *'imdisable'* *'imd'* *'noimdisable'* *'noimd'*
- *'imstatusfunc'* *'imsf'*
- *'insertmode'* *'im'* Use the following script to emulate 'insertmode': >vim
    autocmd BufWinEnter * startinsert
    inoremap <Esc> <C-X><C-Z><C-]>
    inoremap <C-C> <C-X><C-Z>
    inoremap <C-L> <C-X><C-Z><C-]><Esc>
    inoremap <C-Z> <C-X><C-Z><Cmd>suspend<CR>
    noremap <C-C> <Esc>
    snoremap <C-C> <Esc>
    noremap <C-\><C-G> <C-\><C-N><Cmd>startinsert<CR>
    cnoremap <C-\><C-G> <C-\><C-N><Cmd>startinsert<CR>
    inoremap <C-\><C-G> <C-X><C-Z>
    autocmd CmdwinEnter * noremap <buffer> <C-C> <C-C>
    autocmd CmdwinEnter * inoremap <buffer> <C-C> <C-C>

    lua << EOF
      vim.on_key(function(c)
        if c == '\27' then
          local mode = vim.api.nvim_get_mode().mode
          if mode:find('^[nvV\22sS\19]') and vim.fn.getcmdtype() == '' then
            vim.schedule(function()
              vim.cmd('startinsert')
            end)
          end
        end
      end)
    EOF
- *'macatsui'*
- *'maxcombine'* *'mco'* : Nvim counts maximum character sizes in bytes, not
  codepoints. This is guaranteed to be big enough to always fit all chars
  properly displayed in vim with 'maxcombine' set to 6.
  - You can still edit text with larger characters than fits in the screen
    buffer, you just can't see them. Use |g8| or |ga|. See |mbyte-combining|.
  - NOTE: the rexexp engine still has