Delete old versions of PS?

[Brandicm]

When PS automatically updates to it's newest year, do we need to keep PS application files from previous versions?  I have photoshop CC versions going back to 2014.  I'd like to clean up my computer but I don't want to screw up PS.

[Damien Symonds]

I'd always keep the one previous year, at least until you're sure that the new one isn't buggy (lots of people have had to roll back to 2018 from 2019 recently, because of bugs).

But no, delete the others.

[Brandicm]

Thanks!