After releasing iOS version 6.0.2 to fix issues with Wi-Fi on the iPhone 5 and the iPad mini, Apple today seeded build 12D43 of OS X 10.8.3 Mountain Lion to developers.
mountainlionbetaupdateThough the update comes with no known issues or new features, Apple has asked developers to focus on AirPlay, AirPort, Game Center, Graphics Drivers, and Safari in their testing.

This is the third beta release since the first 10.8.3 beta was seeded back in November. Registered developers can download it via the Apple Developer Page.

Update: 9to5Mac reports that Apple has now released build 12D44 to developers, some two days after 12D43 was released. This release still reports no known issues, though it's possible the quick update is a fix for some unmentioned bug.

Top Rated Comments

3282868 Avatar
160 months ago
This is pretty sad. Apple has moved to an annual release cycle for OS X, placing 10.9 not too far into the near future, and 10.8 is still giving a good amount of users grief.

Some prominent bugs for many:

- WiFi connectivity since 10.7
- The "Chris Angel" disappearing mouse cursors
- Graphic glitches (static images in many core apps)
- Slower system functionality compared to 10.6 even with more RAM
- SMB and file sharing protocol nightmares
- An antiquated HFS+ Finder (even ZFS would have been much better, which has been discussed at great length since 10.5 beta's)
- Less configuration options with such OS X utilities as AirPort Utility 6.0 (thankfully I can drag and drop 5.x as it will not install in 10.8)
- OpenGL Core way behind other systems
- iWork '09 and iLife '11 are barely updated save for iOS "features"
- Axed Keychain and Dock syncing bet Mac's, and iDisk (shame Dropbox wasn't acquired)
- Axed web hosting
- OS X Server became a cheaper app addition and lacks important aspects that 10.6-7 Server offered
- Oh look, more social networking thrown into every core app. Yeah.

You'd believe all these dropped components would give Apple engineers more time to focus on producing a polished system as previous years have shown. Ironic.

God I miss the days before 10.7. Bring back Bertrand Serlet!
Score: 5 Votes (Like | Disagree)
lcmazza Avatar
160 months ago
Coming back from sleep is still terrible on rMBP... USB becomes sluggish, external keyboard doesn't wake up the system...

Graphics switching is still pretty bad. :(
Score: 4 Votes (Like | Disagree)
Prof. Avatar
160 months ago
Here's hoping it fixes the slow shutdown times. :(
Score: 4 Votes (Like | Disagree)
sshhoott Avatar
160 months ago
Mac mini (mid-2010) with the 320M

12D44 working good so far!
I am so disappointed in Apple about their handling of Nvidia 320M, this is on a Macbook Pro 13" mid 2010. The animations get choppy as heck just after a few hours of usage, such as changing desktop animation. I tried the same thing on the Macbook Pro 13" 2009 (Nvidia 9400M), but it stays smooth. To make matters worse, I experience enournous amounts of memory leak in the form of inactive memory, which never clears unless I restart. I have done clean installations of OS X 10.8.2.

Some say they resort to this method: //www.youtube.com/watch?v=gmoWoeNrkOs to achieve smoothness.

But this shouldn't be happening to a computer like Mac where the weaker one outperforms the stronger one :mad:. What are your guys thoughts? Have you had similar issues with 320M?

Any developers reading this post, please notify Apple about these "bugs" concerning Nvidia 320M. Would extremely appreciate it.
Score: 2 Votes (Like | Disagree)
JGRE Avatar
160 months ago
What i really liked about OS X before Lion and Mountain Lion that shutdown was very much instant (at least for me).

Now it seems all kinds of crappy services have taken the stage and all the Snow Leopard optimisation has taken the backstage.
Right, now it feels if you are working on a Windows computer.........:eek:

Is it just me, or does opening the systems settings window take far more time then it did under 10.7?
Score: 2 Votes (Like | Disagree)
mag01 Avatar
160 months ago
This is pretty sad. Apple has moved to an annual release cycle for OS X, placing 10.9 not too far into the near future, and 10.8 is still giving a good amount of users grief.
...
God I miss the days before 10.7. Bring back Bertrand Serlet!

Agreed.
Though as for ZFS I don't like it much for its memory requirements - it's more suitable for server environments. Though there are ways how to scale the RAM usage down (more or less).
Score: 2 Votes (Like | Disagree)

Popular Stories

iCloud General Feature Redux

iPhone Users Who Pay for iCloud Storage Receive a New Perk

Thursday March 20, 2025 12:01 am PDT by
If you pay for iCloud storage on your iPhone, Apple has a new perk for you, at no additional cost. The new perk is the ability to create invitations in the Apple Invites app for the iPhone, which launched in the App Store last month. In the Apple Invites app, iCloud+ subscribers can create invitations for any occasion, such as birthday parties, graduations, baby showers, and more. Anyone ...
iPhone 17 Pro Render Front Page Tech

iPhone 17 Pro Launching Later This Year With These 10 New Features

Sunday March 23, 2025 10:00 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. iPhone 17 Pro's alleged design via Front Page Tech Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone...
Generic iOS 19 Feature Mock

iOS 19 Coming in June With These New Features

Thursday March 20, 2025 2:04 pm PDT by
While the first iOS 19 beta is still more than two months away, there are already plenty of rumors about the upcoming software update. Below, we recap the key iOS 19 rumors so far. visionOS-Like Design In January, the YouTube channel Front Page Tech revealed a redesigned Camera app that is allegedly planned for iOS 19. According to Front Page Tech host Jon Prosser, the Camera app...
iOS 18

Top 5 New Features Coming in iOS 18.4

Friday March 21, 2025 3:26 pm PDT by
We're not getting new Siri Apple Intelligence features in iOS 18.4 as expected, but the upcoming update does have quite a few new additions that will be worth upgrading for. We've rounded up the five best features to look forward to, and if you're not running the beta, you can expect to get access to these in early April. Priority Notifications If you have an iPhone or iPad that supports...
Windows Vista

Apple Might Be Having Its Windows Vista Moment, Says Analyst

Thursday March 20, 2025 6:52 am PDT by
Is Apple experiencing a "Vista-like drift into systemically poor execution?" That was a question posed by well-known technology analyst Benedict Evans, in a recent blog post covering Apple's innovation and execution, or seemingly lack thereof as of late. He is referring to Microsoft's Windows Vista operating system, which was widely criticized when it launched in 2007 due to software bugs,...
apple wallet drivers license feature iPhone 15 pro teal 1

Apple Says iPhone Driver's Licenses Coming to These 8 U.S. States, But Rollout Remains Slow

Wednesday March 19, 2025 6:55 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Unfortunately, this feature continues to roll out very slowly. It has been three and a half years since Apple first announced the...
airpods pro 2 gradient

AirPods Pro 3 Launch Now Just Months Away: Here's What We Know

Tuesday March 18, 2025 9:13 am PDT by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as excellent for...
iPhone 17 Pro Render Front Page Tech

Latest iPhone 17 Pro Dummies Highlight Apple's New Part-Glass Design

Thursday March 20, 2025 5:27 am PDT by
Seasoned leaker Sonny Dickson has shared more dummy models of Apple's upcoming iPhone 17 series, with the latest lot revealing a noticeable shift in Apple's iPhone Pro model design that goes beyond the much-talked-about new rear camera bar. Dickson points out that the iPhone 17 Pro dummy models feature an outlined area on the back, beginning just below the camera module and extending to the...
airtag orange

Apple's Next Product is Likely an AirTag 2 With These New Features

Thursday March 20, 2025 2:30 pm PDT by
Following the introduction of the iPhone 16e, new iPads and Macs, and some new accessories over the past month, what will Apple's next product announcement be? Based on rumors, a second-generation AirTag item tracker is likely next up. Last year, Bloomberg's Mark Gurman reported that a new AirTag would be released around the middle of 2025. More recently, a leaker known as Kosutami claimed...