Apple today issued build 12E33a of OS X Mountain Lion to developers, eight days after build 12E30 was released. Build 12E33a marks the third beta iteration of OS X 10.8.4.

Apple continues to ask users to focus on Wi-Fi, Graphics Drivers, and Safari.

The update is available through the software update tool in the Mac App Store and it should appear on Apple's Developer Page shortly.

Top Rated Comments

3282868 Avatar
126 months ago
Improved OpenGL 4.+ support? No.

Improvements in WiFi (for some)? No.

SMB and AFP improvements? Nope.

Hmmm, well, rMBP graphics improvement? Nope, still glitchy.

Ummm, Finder improvements for large volumes? Haven't noticed.

Oh, wait, improvements in Facebook, Twitter and iOS integration! Awesome!

Can't wait for Facebook Home in OS X 10.9!
Score: 7 Votes (Like | Disagree)
CrazyForApple Avatar
126 months ago
Always wanted to post that.
You shouldn't have posted that.
Score: 4 Votes (Like | Disagree)
bb426 Avatar
126 months ago
In other news, when are the underwear ads going away, Macrumors?

Score: 4 Votes (Like | Disagree)
komodrone Avatar
126 months ago
I don't think Apple can fix your crappy desktop images, bro.

your comment needs fixing.


The desktop image is from a very good webcomic, but I disgress :D

such an amazing webcomic!
Score: 3 Votes (Like | Disagree)
komodrone Avatar
126 months ago
1. Shutdown times
2. This (boot with HDMI plugged in on 15" retina) :
3. And this: //
4. And full screen video stutter issues
and I'll be sooooooo happy.
Score: 3 Votes (Like | Disagree)
FrancoisC Avatar
126 months ago
I don't think Apple can fix your crappy desktop images, bro.
The desktop image is from a very good webcomic, but I disgress :D

Anyway, look where his dock is, And how the wallpaper dont use the whole screen, that's his problem.
Score: 2 Votes (Like | Disagree)

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