So. Since this will be a test with step by step stuff. Here's what I'm going to do.
- Create a folder for v1.10.7
- Create a folder for v1.12.2
- PHP is set to ea-php70
- Setup both from scratch on a separate SQL database
- Test if PDF printing and plugins work
Because I just realized that plugins don't seem to work. Will update in a few.
EDIT
So. Testing is showing that v1.12.2 has problems with the printing to PDF on my hosting provider with PHP v7.0. I was originally running 7.2 and it had problems. My live instance still has issues. So now - I'm going to attempt a database migration setting with 1.10.7 and document the process.
Basically what happened was..........v1.12.2 showed me a 500 error while v1.10.7 printed the PDF. Which means I will have to stay with v1.10.7 until this is resolved in v1.12.2. Last thing to do now is run an upgrade on v1.10.7 and see if I lose printing ticket to PDF. Hold please.
EDIT
Did the upgrade and printing stopped working. So this is a bug. Will have to now try to migrate the database and see if it will work for me. Will post back with instructions.
Apparently the application works best with ea-php56. So The reason the plugins weren't working was because of that. I then did an upgrade to v1.12.2 and while the plugins worked, the PDF printing stopped working once again. So that is definitely an issue. Will wait a bit to see if a more experienced user/admin can give some suggestions. Hopefully the details I've placed will help someone else.