Thanks, Doug. I didn’t check to see how far back 10.13 supported the older hardware.
My wife has the oldest Mac in our house, a 7 year old MBP with a rotational HD. The last of the HD Macs we own. It’s dog slow for her needs for Photoshop, Lightroom, etc.
So... a new 15” MBP should be delivered today. She only uses the MBP when away from home and her 27” 5K iMac but those are times we’re out shooting photographs for days or a week at a time. It’s a boon to see and do initial edits of what you’ve been capturing.
My MBP is one year newer but has an i7 and an SSD. That will be upgraded whenever Apple offers a MBP with 32GB RAM.
My older Macs have purred just fine but our photography and videography puts a strain on some of the older machines as we yell “giddy up, hoss”.