I've used mod 4096 for decades and am getting this same "hidden/deprecated" notification.  With no info about what the new command is to use.

I checked for this and my config did *NOT* have that command "system ignore startupconfig switch all" set, but I went ahead anb set it and then no'd it out and saved the config and reloaded and this worked for me.  I'm not sure why the var wasn't set...