Basically we need a Snow Leopard. That was by far the most rock solid release they've done in years. It included a few new features but was at it's core a massive performance and bug fix release. The fact that it was also released on some very old macs at the time helped too.
This being said, day to day I cant remember the last time I experienced a bug on any mac I've used. It's generally very stable, but does need a maintenance release to refine a few areas.
Hm I guess it depends on use cases, and machine configurations. I encounter many, many bugs. Off the top of my head:
- On reboot, sometimes the Menu Bar fails to load entirely, and I have to keep rebooting until it appears.
- WindowServer process memory leaks that require a reboot to fix.
- Finder steals focus from other apps. For instance, when I cmd-tab to quick switch between Mail and Notes, Finder will insert itself into the quick switch stack and replace the last focused app.
- Finder drag and drop randomly stops working.
- Spotlight fails to find files in normal directories, so I have to drop into Terminal to find them.
- Terminal sometimes loses input focus for no discernible reason.
- Calendar notifications either don’t show up at all, or dismiss themselves automatically, or the snooze action dismisses them and they never return.
- Safari page content crashes when the I resize the browser window. No discernible pattern for what causes this.
Death by one thousand paper cuts. The list just keeps going.
This being said, day to day I cant remember the last time I experienced a bug on any mac I've used. It's generally very stable, but does need a maintenance release to refine a few areas.