Apologies for what is probably a very basic question - am new user! I have started doing quite a lot of analysis on STATA 15. However all the hardware in my department was updated and unfortunately only has STATA 12 on it now. My analyses now don't seem to run. Is there any way to make code written in STATA 15 compatible with STATA 12? I am told STATA will be upgraded to 15 soon but I'm not sure when - if I changed it around can I change it back later??