Error in image.nvim interpreting allow-passthrough as per the README instructions

[pbower]

Error detected while processing /home/pbower/.config/nvim/init.vim:
line 624:
E5108: Error executing lua ...share/nvim/plugged/image.nvim/lua/image/u tils/logger.lua:54: 20:46:08.004198 [image.nvim] tmux does not have all ow-passthrough enabled
stack traceback:
[C]: in function 'handler'
...share/nvim/plugged/image.nvim/lua/image/utils/logger.lua:54: in function 'throw'
...vim/plugged/image.nvim/lua/image/backends/kitty/init.lua:29: in function 'setup'
.../.local/share/nvim/plugged/image.nvim/lua/image/init.lua:66: in function 'setup'
[string ":lua"]:1: in main chunk

  However:
  
  set -gq allow-passthrough on
  
  
  is set, enabled and sourced in ~/.tmux.conf
  
  
  Why is this ?
  
  Thanks

[3rd]

It can be a temporary glitch with tmux, try killing the server and see if it happens again. We check that by running tmux show -Apv allow-passthrough and we expect it to output on. Try running the command outside of Neovim, if it's not displaying "on" it's something wrong with your tmux, if it is displaying on it's a bug in image.nvim, but I don't think that's possible.

[TamaMcGlinn]

I was on the latest tmux packaged for Ubuntu 22.04, which is 3.2, and got invalid option: allow-passthrough. After compiling from source to get tmux 3.4 (which also requires building libevent from src, following the readme of tmux), I was able to get on. So I guess there's a minimum version of tmux of either 3.3 or 3.4. I have also verified this is necessary on another machine running Ubuntu 20.04.

[3rd]

Ah yes, it was introduced in 3.3. Thanks for the heads-up, I updated the README.