Mac OS Catalina and Mac Mini late 2012
I have a Mac Mini late 2012 running Mac OS El Capitan. I would like to upgrade to Mac OS Catalina, but I'm afraid because some guys told me that probably I can have some serious problems, because Catalina is 64-bit and that my 32-bit programs won't work in Catalina, etc., and I don't know what to do.
The problem with El Capitan is that I'm having problems with old applications like Safari that don't access some new sites without errors (I had to install Firefox and Chrome). I found the new version of Safari in Apple Store but I didn't success to download the upgrade, etc.
I would like to get some help. Thanks in advance.
Mac mini, OS X 10.11