[wwweston]

> And what incentive is that?

For one thing, they won't sell you Mavericks anymore. If you didn't buy it while it was out, it is simply unavailable for you to purchase. They obviously could sell it to you, but they won't. It's a matter of intentional policy to make sure you don't buy in at any point earlier than the current one.

(Take that in, BTW. That means someone at Apple made the judgment that it is literally more important that you have their latest than it is for everyone to have a stable, reliable OS.)

[bornabox]

Ah come on. Yosemite is not a stable, reliable OS? That's just hyperbole... Running 10.10.3 on half a dozen machines, mostly older ones, and it's stable, reliable and working just fine. MBPro's, Mac Mini's, MBAir, iMac.

[chiph]

Not sure if you're being sarcastic or not ...

Overall OS stability has gone down with Yosemite. I have to restart far more often than I should -- usually after coming out of sleep mode.