OS X 10.8.4 Build 12E55 Seeded to Developers - MacRumors
Skip to Content

OS X 10.8.4 Build 12E55 Seeded to Developers

by

As noted by 9to5Mac, Apple today seeded build 12E55 of OS X 10.8.4 to developers. The release comes nine days after the previous build 12E52 and marks the eighth beta iteration of OS X 10.8.4.

12e55
As with previous beta releases, Apple continues to ask developers to focus on Wi-Fi, Graphics Drivers, and Safari.

The update is available through the software update tool in the Mac App Store and Apple's Developer Page.

Top Rated Comments

Parasprite Avatar
173 months ago
Screw it. Waiting for 10.9

I made it to 10.8.3, I can wait for anything.
Score: 17 Votes (Like | Disagree)
ArtOfWarfare Avatar
173 months ago
My Macbook Pro has been flashing MAJOR graphics artifacts since upgrading to 10.8.3 (this did not happen in 10.8.2). When the glitches become severe enough, the system freezes up completely, with a hard restart being the only recovery.

I'm hoping that 10.8.4 will fix this issue!

Here are some videos of my problem:

http://youtu.be/YGae1ams0i8
http://youtu.be/tqO30pxdSOs
http://youtu.be/OIwSkIJduRc

Here is an image of my problem:

Image (https://discussions.apple.com/servlet/JiveServlet/downloadImage/2-21996729-250883/450-336/IMG_3595+copy.JPG)

You're holding it wrong.
Score: 13 Votes (Like | Disagree)
TheGreenBastard Avatar
173 months ago
Screw it. Waiting for 10.9
Score: 13 Votes (Like | Disagree)
w0lf Avatar
173 months ago
Re: This shutdown bug.

Can I ask why, in this day and age, why on earth people are doing it so often?!?

My macs never get restarted apart from Software updates or rebooting into Windows. MBP hasn't been restarted in 30 days and MP two weeks!!

If it is done on purpose (which it is) then it isn't a bug...

Because we masturbate to watching our macbooks restart.

Why the hell do people keep asking this? It's a bug and it should be fixed that's all.
Score: 6 Votes (Like | Disagree)
cmChimera Avatar
173 months ago

Then who do you blame?

I don't blame anyone. I like Mountain Lion. I think Lion could've used more polish before release, but I think Mountain Lion was a return to form. I have very few complaints about 10.8.
Score: 6 Votes (Like | Disagree)
designgeek Avatar
173 months ago
They really seem to be taking their time with this one. I hope the get most of the crap ironed out. OS X gets buggier and buggier with each new release.
Score: 6 Votes (Like | Disagree)

Popular Stories

Apple Watch Ultra 2 Black Titanium

New Apple Watch Series 12 and Apple Watch Ultra 4 Features Revealed

Sunday August 30, 2026 7:54 am PDT by
Bloomberg's Mark Gurman today further outlined what to expect from the Apple Watch Series 12 and Apple Watch Ultra 4 set to be unveiled on September 9. While it was initially rumored that Touch ID may be coming to the Apple Watch this year, Gurman reiterated that he does not expect the Series 12 or Ultra 4 to have any major design changes compared to the current Series 11 and Ultra 3 models. ...
Mac mini vs Studio Feature Sans Text 1

Apple Caught Off Guard by AI Demand for Mac Mini and Mac Studio

Sunday August 30, 2026 8:52 am PDT by
Apple's unusually timed announcement of new Mac mini and Mac Studio models this week was driven by unexpectedly strong enterprise appetite for AI hardware, according to The Information. Apple normally releases new Mac models in the autumn, closer to October or November, making this week's announcement unusually early, falling just before the anticipated arrival of new iPhone models. The...
Apple Surprise Shine

Apple Event: Six New Products to Expect on September 9

Thursday August 27, 2026 8:00 am PDT by
Apple has announced that it will be holding an event on Wednesday, September 9 at 10 a.m. Pacific Time, with the company widely expected to unveil the iPhone 18 Pro, iPhone 18 Pro Max, its first-ever foldable iPhone, and more. Other products expected to be announced at the event include an Apple Watch Series 12 with a ceramic case option, an Apple Watch Ultra 4, AirPods 5 with and without...