I've been using
set -g default-shell /usr/bin/zsh
set -g default-command /usr/bin/zsh
in my ~/.byobu/.tmux.config for several years to set the shell that Byobu uses without changing (chsh) my login shell, as explained in
How do I change the default shell used in Byobu (tmux)? by @Dustin Kirkland, the author and maintainer of Byobu.
I installed Byobu on a new machine from the PPA (currently version 5.92) and this setting does not have any effect. Byobu uses the user shell (bash in my case). I've checked and zsh is indeed in /usr/bin/. How can I determine why this setting is not picked up by Byobu?
