I need to revert to OS 10.12 or earlier in order to restore compatibility with some old quirky software that I must use to submit data. I currently have 10.13. Apologies if this is easy to fix!
I need to revert to OS 10.12 or earlier in order to restore compatibility with some old quirky software that I must use to submit data. I currently have MacOS High Sierra 10.13.6. Apologies if this is easy to fix, but I could not find anything in the FAQs or search output.
MacBook Pro (Retina, 15-inch, Early 2013), macOS High Sierra (10.13.6)
