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
112 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
112 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
112 months ago
Here's hoping it fixes the slow shutdown times. :(
Score: 4 Votes (Like | Disagree)
sshhoott Avatar
112 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
112 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
112 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)

Top Stories

Pro Display XDR Yella

Apple Working on External Display With Built-In A13 Chip

Friday July 23, 2021 9:37 am PDT by
Apple is developing an external display that includes an A13 chip with Neural Engine, according to a new rumor from 9to5Mac. The A13 chip with Neural Engine would presumably serve as an eGPU, though details are light at this time. Having a CPU/GPU built into the external display could help Macs deliver high-resolution graphics without using all the resources of the computer's internal chip....
maxresdefault

Apple Music to Livestream Premiere of Kanye West's New Album 'Donda' on Thursday

Wednesday July 21, 2021 1:49 am PDT by
Apple Music on Thursday will host a global livestream for the premiere of Kanye West's tenth studio album, titled "Donda." The sold-out event will take place at the Mercedes-Benz Stadium in Atlanta, Georgia, and Apple Music's livestream will start at 8:00 p.m. Eastern Time. The livestream was revealed in a Beats Studio Buds ad that aired during the NBA Finals. The ad features U.S. track...
airpods 3 gizmochina Feature

AirPods 3 Rumored to Launch Alongside iPhone 13 at Expected September Event

Friday July 23, 2021 12:54 am PDT by
The third-generation AirPods will likely launch at the same event revealing Apple's upcoming iPhone 13 lineup, according to a report from DigiTimes, which makes the claim citing sources familiar with the matter. The report as a whole echoes previous reporting that production of the third-generation AirPods will kickstart in August, meaning a launch shortly after can be easily expected. DigiTi...
idos 2 app ios

Apple to Pull 'iDOS 2' DOS Emulator From App Store

Thursday July 22, 2021 3:22 pm PDT by
iDOS 2, an app designed to allow users to play classic DOS games, will soon be pulled from the App Store, the app's creator said today. According to iDOS developer Chaoji Li, he tried to submit an iDOS update with bug fixes to the App Store, but was told that the update was rejected because it violated the 2.5.2 App Store guideline that says apps cannot install or launch executable code.Durin...
iPad mini pro feature

Next iPad Mini Won't Feature Mini-LED Display, Claims Display Analyst

Friday July 23, 2021 8:07 am PDT by
Yesterday, DigiTimes claimed that the upcoming iPad mini will feature a mini-LED display, but now, display analyst Ross Young is going at odds with that report, claiming that while the updated iPad mini continues to be on track for a release this year, it won't feature a mini-LED display. Young says he "confirmed" with Radiant Opto-Electronics, who DigiTimes claims would provide Apple with...
AirPods Pro Beta Firmware

AirPods Pro Beta Firmware Now Available

Wednesday July 21, 2021 6:50 am PDT by
Upcoming AirPods Pro firmware updates are now available to Apple Developer Program members as beta versions. AirPods Pro firmware beta one features FaceTime Spatial Audio and Ambient Noise Reduction. Custom Transparency mode, including Conversation Boost, was initially expected to be included in the beta but appears to have been delayed for a later version. Apple made the announcement...
iPad mini pro feature

Next-Generation iPad Mini Will Reportedly Feature a Mini-LED Display

Thursday July 22, 2021 9:03 am PDT by
Apple is widely rumored to be planning a new iPad mini with a significant redesign, including a larger 8.5-inch to 9-inch display with slimmer bezels, a Touch ID power button instead of a home button, a USB-C port instead of a Lightning connector, and more. According to a paywalled preview of a DigiTimes report today, the sixth-generation iPad mini will also feature a mini-LED display:BLU...
discount m1 macbook yellow

Deals: Shop Record Low Prices Across Apple's Full MacBook Pro and MacBook Air Lineup (Up to $499 Off)

Friday July 23, 2021 8:23 am PDT by
Apple's MacBook Pro and MacBook Air lineup is seeing all-time low discounts across the board today, including the 2019 16-inch MacBook Pro, 2020 13-inch MacBook Air, and 2020 13-inch MacBook Pro. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. 13-Inch M1...
ios wifi settings

Apple Confirms iOS 14.7 Fixes WiFi Bug and Many Other Vulnerabilities

Wednesday July 21, 2021 11:38 am PDT by
Following the release of iPadOS 14.7 this morning, Apple has shared details on the security updates that are included in iOS 14.7, iPadOS 14.7, macOS Big Sur 11.5, watchOS 7.6, and tvOS 14.7, all of which came out this week. Notably, Apple's documentation confirms that the iOS 14.7 and iPadOS 14.7 updates address a WiFi-related vulnerability that could impact iOS devices when joining a...
macOS Big Sur Feature Orange

Apple Releases macOS Big Sur 11.5 With Podcast App Updates and Bug Fixes

Wednesday July 21, 2021 10:15 am PDT by
Apple today released macOS Big Sur 11.5, the fifth major update to the macOS Big Sur operating system that launched in November 2020. macOS Big Sur 11.5 comes two months after the release of macOS Big Sur 11.4. The new ‌‌‌‌‌macOS Big Sur‌‌‌‌ 11.5 update can be downloaded for free on all eligible Macs using the Software Update section of System Preferences. macOS Big Sur...