Re: Control-t before Control-z

Type in `nano -V` into your command line on each machine.
That will give you the versions of nano each machine has.
Then go to nano-editor.org/news.php and see what's changed between the versions.
It looks like the offending change has been clearly documented as happening in version 6.0

It suggests you manually 'bind' '^Z' to 'suspend' in 'all' menus if you preferred that behavior. See `man 5 nanorc` for information about this.

Hope this was helpful!