Skip to Content

Apple Seeds Build 12D54 of OS X 10.8.3 to Developers

by

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
172 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)
172 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)
172 months ago
They're really testing this one thoroughly.
Score: 9 Votes (Like | Disagree)
172 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)
172 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)
172 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

iOS 27 Mock Quick

iOS 27 Will Reportedly Be Like Mac OS X Snow Leopard

Sunday March 15, 2026 9:42 am PDT by
In his Power On newsletter today, Bloomberg's Mark Gurman reiterated that iOS 27 will be similar to 2009's Mac OS X Snow Leopard, in the sense that one of Apple's biggest priorities is bug fixes for improved performance and stability. During WWDC 2008's State of the Union, Apple showed a slide that said Mac OS X Snow Leopard had "0 new features," as it opted to focus on performance and...
AirPods Max 2 Feature

Apple Announces AirPods Max 2 With H2 Chip and More

Monday March 16, 2026 6:12 am PDT by
Apple today unveiled AirPods Max 2, with key upgrades including the H2 chip, increased active noise cancellation, improved sound quality, and features such as Adaptive Audio, Conversation Awareness, Voice Isolation, and Live Translation. The new AirPods Max have the same overall design as the previous generation, with most of the new features coming from the upgrade to the H2 chip:- Adaptive ...
Apple Logo Sketch Feature

Apple Unveiled a Surprise New Product Today

Monday March 16, 2026 10:50 am PDT by
Surprise! Apple today unveiled the AirPods Max 2, despite no rumors suggesting that a new version of Apple's over-ear headphones were imminent. Key upgrades compared to the previous AirPods Max include Apple's H2 chip, increased active noise cancellation, improved sound quality, and features such as Adaptive Audio, Conversation Awareness, Voice Isolation, and Live Translation. AirPods Max ...