i get rather upset in reading your comments as you don't acknowledge the active role Apple plays in pushing for more consumption of products that are damaging to our environment to produce and dispose of, that still don't have lifecycle management strategies in place.

I have a 2011 13" macbook pro that works fine, but I must remain on Lion for various software versions I own (purchased licenses, some are not upgradeable at all)

this means: no XCode past 4.2, which means no iOS dev past 6... Chrome and numerous other apps are no longer supported etc.

and when M$ tried to retire WinXP after over a decade of service they were still met with resistance...

apple gets away with a lot...