Starting on September 30th, everybody will be able to install Apple’s latest OS X update, El Capitan, on their Macs. El Capitan is the small one in Apple’s big-then-small OS update cadence, which means that we have just a few core changes, a bunch of app updates, and a healthy pile of bug fixes.
Virtually everybody with Yosemite will (and should) update. Virtually nobody will feel that their Mac experience has fundamentally changed, instead we’ll just see it get slightly nicer. Given all that, it’s easy to just shrug at this OS update. So easy that I’ve found myself doing exactly that over the past few weeks.