
In the past it helped that I was migrating to a new machine, so I had access to my whole old setup and could do things like export MySQL databases from the old and import into the new.

In past os upgrades and moves to new machines it's been necessary to re-set-up all that, which isn't a huge problem but also not a lot of fun. I have Apache/MySQL/PHP set up in the same approximate manner as we were told to do this years ago - sites running in /Library/WebServer/Documents, custom hosts and nf files in /private/etc and so on. What I'm wondering about is whether my local webserver will survive the upgrade.


I get the feeling that has changed, and that putting Catalina on my 2016 MacBook Pro shouldn't be a problem. In the past colleagues (and I) believed it was often a bad idea to install newer OSs on older Macs.
