build12d54
Apple today seeded build 12D54 of OS X Mountain Lion 10.8.3 to developers, marking the sixth beta iteration of the newest version of Mountain Lion. 10.8.3 was first seeded to developers in November.

Build 12D54 comes just eight days after build 12D50, and like the previous build, contains no known issues or features. Build 12D50 brought only minor changes, and asked developers to focus on testing AirPlay, AirPort, Game Center, Graphics Drivers, and Safari.

9to5Mac notes that the new build contains significant changes to WiFi, but additional changes are unknown. Registered developers can download the update on Apple’s Developer Page.

This post originally referred to Build 12D54 as the seventh developer seed of OS X 10.8.3 when it was actually the sixth seed.

Top Rated Comments

oneMadRssn Avatar
171 months ago
still no reason for "switching" from SL to ML. i have to admit that airdrop is nice, but not so widespread. all the social cr@p can go to hell. i want back proper exposè and spaces.

I'm so tired of reading this. First of all, "all the social cr@p" is completely optional and not at all intrusive. It can be completely turned off. Second of all, SL didn't have "proper" exposè. "proper" exposè ended with Leopard. SL added the scaled exposè which many argued was worse. ML brings back proper, unscaled, exposè.

Still don't like it? Don't use it then. But this completely unconstructive whining has to end.
Score: 25 Votes (Like | Disagree)
171 months ago
still no reason for "switching" from SL to ML. i have to admit that airdrop is nice, but not so widespread. all the social cr@p can go to hell. i want back proper exposè and spaces.
Score: 17 Votes (Like | Disagree)
171 months ago
They're really testing this one thoroughly.
Score: 9 Votes (Like | Disagree)
171 months ago
Still don't like it? Don't read it then, don't even bother to quote. Because this I-hate-SL-buggers-ML-being-latest-and-greatest-wannabe whining has to end. :rolleyes::rolleyes:.
Says the guy who always post in ML related threads to whine about how ML sucks and SL is the best :rolleyes:
Score: 8 Votes (Like | Disagree)
171 months ago
I'm so tired of reading this. First of all, "all the social cr@p" is completely optional and not at all intrusive. It can be completely turned off. Second of all, SL didn't have "proper" exposè. "proper" exposè ended with Leopard. SL added the scaled exposè which many argued was worse. ML brings back proper, unscaled, exposè.

Still don't like it? Don't use it then. But this completely unconstructive whining has to end.

Yeah, there's also icloud support, which is a huge reason to switch IMO.
Score: 7 Votes (Like | Disagree)
171 months ago
I'm so tired of reading this. First of all, "all the social cr@p" is completely optional and not at all intrusive. It can be completely turned off. Second of all, SL didn't have "proper" exposè. "proper" exposè ended with Leopard. SL added the scaled exposè which many argued was worse. ML brings back proper, unscaled, exposè.

Still don't like it? Don't use it then. But this completely unconstructive whining has to end.

Then don't read it... First of all, though "all the social cr@p" is completely optional, its processes are not, and thus cannot be turned off whether you use it or not. It's a bloatware to say the least. Secondly, Leopard has the "proper" exposè, SL is the refinement of it. It looks a lot cleaner than some random windows thrown at your screen. I just don't understand why would Apple want to reverse it with Lion and Mountain Lion. I guess that's the very sign that Apple is going BACKWARDS hence the lack of innovation after SJ got beaten back to his grave.

Still don't like it? Don't read it then, don't even bother to quote. Because this I-hate-SL-buggers-ML-being-latest-and-greatest-wannabe whining has to end. :rolleyes::rolleyes:

----------

Wow, they're really making a lot of fixes in 10.8.3. I can't wait to download it.

12D54 and you say it's a lot of fixes...? In Snow Leopard, I guess they fixed a lot more with 3-digit builds. That's why Mountain Lion is still a piece of ****...
Score: 6 Votes (Like | Disagree)

Popular Stories

M3 iPad Air

Apple's Next Two Products Are Coming Soon

Thursday February 12, 2026 11:17 am PST by
Apple plans to release an iPhone 17e and an iPad Air with an M4 chip "in the coming weeks," according to the latest word from Bloomberg's Mark Gurman. "Apple retail employees say that inventory of the iPhone 16e has basically dried out and the iPad Air is seeing shortages as well," said Gurman. "I've been expecting new versions of both (iPhone 17e and M4 iPad Air) in the coming weeks."...
Apple Sales Coach App

Apple Launching New 'Sales Coach' App

Friday February 13, 2026 2:01 pm PST by
Apple plans to launch a rebranded "Sales Coach" app on the iPhone and iPad later this month, according to a source familiar with the matter. "Sales Coach" will arrive as an update to Apple's existing "SEED" app, and it will continue to provide sales tips and training resources to Apple Store and Apple Authorized Reseller employees around the world. For example, there are articles and videos...
Coffee Burgundy and Purple iPhone 18 Pro Mock

Five iPhone 18 Pro Features Revealed in New Report

Friday February 13, 2026 8:43 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are still seven months away, an analyst has revealed five new features the devices will allegedly have. Rumored color options for the iPhone 18 Pro models In a research note with investment firm GF Securities on Thursday, analyst Jeff Pu outlined the following upgrades for the iPhone 18 Pro models: Smaller Dynamic Island: It has been rumored...
iOS 26 Home Feature

Three New Apple Home Products Rumored for 2026

Friday February 13, 2026 4:18 pm PST by
Apple has a long list of new products rumored for 2026, including a series of home products that will see the company establishing more of a presence in the smart home space. Robots are on the horizon for 2027, but the 2026 releases will be a little tamer. HomePod mini We're expecting a new HomePod mini 2 to launch at any time. Apple isn't going to update the device's design, but we could...
m5 macbook pro deal

Why You Shouldn't Buy the Next MacBook Pro

Tuesday February 10, 2026 4:27 pm PST by
Apple is planning to launch new MacBook Pro models as soon as early March, but if you can, this is one generation you should skip because there's something much better in the works. We're waiting on 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips, with few changes other than the processor upgrade. There won't be any tweaks to the design or the display, but later this...