There’s a software program that I need to DL. It requires OS 10.12. Searching for Sierra has been fruitless. Apparently it’s out of print. I thought I had it when I clicked a Sierra Download only to get this:
I don’t want to go to Mojave because from what I’ve read on-line it will render a lot of apps or peripherals unusable………been there done that before.
This is the current status of my MacBook Pro:
Is there a safe way to download Sierra?
I’ve spent several hours trying to find answers so hope someone has some advice, please.