As noted by 9to5Mac, Apple today seeded build 12E52 of OS X 10.8.4 to developers. The release comes seven days after the previous build 12E47 and marks the seventh beta iteration of OS X 10.8.4.

12e52
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

Mr. Retrofire Avatar
163 months ago
So far does 10.8.4 fix the slow shutdown times?
Do you use your Mac for real work, or just for startup/shutdown benchmarks?
Score: 29 Votes (Like | Disagree)
dastinger Avatar
163 months ago
FFS, let's not start a shut down vs sleep argument again. You never ever in your life shut down your Mac? Good for you! That doesn't mean shutdown times should be that long. Period!
Score: 15 Votes (Like | Disagree)
katewes Avatar
163 months ago
Those people who don't care about shutdown times, and leave their Macs in a sleep mode all day, probably don't take the Macs out of their houses. They also aren't aware that even if the Mac is encrypted with FileVault2, if a thief gets hold of the Mac in sleep mode, it is not as secure as if it were stolen when totally shut down.

Given this fact, those people who rather pompously brushed aside those who value fast-shutdown times, need to reconsider their stance.

Fast shutdown times encourage me to shut down when I'm not using it since it takes minimal time to start up and shutdown.

But when that process takes more time, the lazy approach is to just leave it in sleep mode, which leaves your Mac more vulnerable to data theft it is stolen while in sleep mode.

To those who lazily just put their Macs to sleep -- and, in their ignorance, BRAG about it -- educate yourself and do this google search:

mac vulnerable sleep shutdown filevault 2

And whilst Apple are at it fixing ML 10.8.4, they might address this security issue that sleeping Macs have.
Score: 9 Votes (Like | Disagree)
ZacNicholson Avatar
163 months ago
Do you use your Mac for real work, or just for startup/shutdown benchmarks?

i agree man. everyone bitching about startup and shutdown times is crazy. like how many times a day do you turn off your mac??:confused:
Score: 9 Votes (Like | Disagree)
loptimistk Avatar
163 months ago
Well, I care about the shutdown time because I often reboot to Boot Camp because OSX is still lacking in some aspects. :cool:

Come on, not everyone uses Macs the same way as you do. :mad:

And, even if it may not bother you, this is still more of a bug.
Regardless of the purpose which may have been to prevent iCloud sync issues or what not.
Score: 8 Votes (Like | Disagree)
Sound214 Avatar
163 months ago
I fixed it.

Great! I just want my favorite Mac site to be correct.
Score: 8 Votes (Like | Disagree)

Popular Stories

Apple Shopping Event 2025

Apple Announces 2025 Black Friday Event, Here's What You Can Get

Thursday November 20, 2025 6:28 am PST by
Apple's annual four-day Black Friday through Cyber Monday shopping event is returning on Friday, November 28 through Monday, December 1 in many countries, including the United States, Canada, Australia, New Zealand, France, Germany, Italy, Spain, the United Kingdom, Belgium, the Netherlands, Sweden, Thailand, and others. During the shopping event, customers can get an Apple gift card with...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Wednesday November 19, 2025 4:00 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
iOS 26

Everything New in iOS 26.2 Beta 3

Monday November 17, 2025 3:20 pm PST by
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3. AirDrop Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts. iOS 26.2...
applecare apple care banner

Apple Brings New AppleCare+ Options to India

Tuesday November 18, 2025 8:42 am PST by
Apple today announced an expansion of AppleCare+ coverage in India, with new options for monthly and annual plans, and the addition of Theft and Loss for iPhone for the first time. Options for monthly and annual AppleCare+ plans in India provide more choice and flexibility, allowing users to keep coverage for as long as they require. Apple's vice president of Worldwide iPhone Product...
ipad mini 7 feature red and blue

iPad Mini 8: Four Major New Features to Expect

Wednesday November 19, 2025 7:50 am PST by
Apple's eighth-generation iPad mini is highly likely to arrive next year, offering a significant refresh of the device with at least four major new features. OLED Display The next-generation version of the iPad mini could feature an OLED display, as part of Apple's plan to expand the display technology across many more of its devices. Apple's first OLED device was the Apple Watch in 2015, ...
iPhone 17 Pro and Air N1 Feature

iPhone 17 vs. iPhone 16 Wi-Fi Speeds: New Study Reveals the Winner

Tuesday November 18, 2025 10:53 am PST by
A new study has revealed that the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air achieve significantly faster average Wi-Fi speeds compared to the iPhone 16 series, thanks to Apple's custom-designed N1 chip. The study was conducted by Ookla, the company behind the popular Speedtest website and app. It said the results are based on global, crowdsourced Speedtest user data...
Apple Wallet ID Illinois

iPhone Driver's License Feature Launching in Illinois

Tuesday November 18, 2025 8:47 am PST 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. Starting this Wednesday, November 19, the feature will be available to residents of Illinois. The announcement confirmed that the...
macbook black friday

The Best Early Black Friday Mac Deals

Tuesday November 18, 2025 7:32 am PST by
We're getting closer to Black Friday, which lands next week on Friday, November 28. In the lead-up to the shopping holiday, we're tracking a few lowest-ever prices on Apple's most popular Macs, including the M4 MacBook Air and brand new M5 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,...
iOS 26

iOS 26.2 Adds These New Features to Your iPhone

Thursday November 20, 2025 10:50 am PST by
iOS 26.2 is currently in beta testing. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics for Apple Music, and more. In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date. Keep reading...
Magic Keyboard Touch ID Feature

Apple Releases New Firmware for 140W USB-C Power Adapter, Magic Keyboard and Magic Trackpad

Tuesday November 18, 2025 1:05 pm PST by
Apple today released updated firmware for several accessories, including the 140W USB-C Power Adapter, the Magic Trackpad 2, the Magic Trackpad USB-C, the Magic Keyboard with Touch ID, and the Magic Keyboard with Touch ID and Numeric Keypad. There is no word on what's included in the updated firmware at this time, but it could offer performance improvements and security updates. Accessory...