Apple Seeds Build 12D61 of OS X Beta 10.8.3 to Developers

update12d61 Apple today seeded build 12D61 of OS X Mountain Lion 10.8.3 to developers, marking the eighth beta iteration of the newest version of Mountain Lion. 10.8.3 was first seeded to developers back in November.

Build 12D61 has been released less than a week after build 12D58. The new build asks developers and testers to focus on AirPlay, AirPort, Game Center, Graphics Drivers, and Safari.

As with previous builds, Apple mentions that it has significantly improved WiFi performance, as noted by 9to5Mac. Registered developers can download the update on Apple's Developer Page.

This post originally referred to Build 12D61 as the ninth developer seed of OS X 10.8.3 when it was actually the eighth seed.

Top Rated Comments

HenryDJP

160 months ago

Because Mountain Lion is more buggy than Lion at this point in time. Are you actually unaware of that?

It is not. ML runs amazingly well and Lion is the one that sucks. It's your system that you need to work on.

Score: 16 Votes (Like | Disagree)

Twimfy

160 months ago

Then why on earth are you still on Lion? ML is far more polished, which you've certainly read a couple of thousand times.

I was going to ask the same thing. Who in their right mind would stay on Lion? You either come to ML or go back to SL.

Score: 15 Votes (Like | Disagree)

GIZBUG

160 months ago

Safari already feels snappier.

These comments were funny about 2 years ago...........kind of old and worn out now....:confused:

Score: 12 Votes (Like | Disagree)

cmChimera

160 months ago

Mountain Lion might run amazing well for you, but for the majority of users, 10.7.5 is more stable and reliable than 10.8.0, 10.8.1, and 10.8.2. Yes, Lion does suck, and Mountain Lion has the potential to be better than Lion, but as of 10.8.2, Mountain Lion still has far more bugs than 10.7.5.

I don't think you actually speak for a majority of users.

Score: 10 Votes (Like | Disagree)

Sound214

160 months ago

As much as I want to ditch 10.7.5 Lion, I am hoping that Apple takes their sweet time with the 10.8.3 update. I don't care about new features since lack of bugs is most important thing for me.

Then why on earth are you still on Lion? ML is far more polished, which you've certainly read a couple of thousand times.

Score: 9 Votes (Like | Disagree)

PBP

160 months ago

Safar.... damn beaten :mad:

Score: 8 Votes (Like | Disagree)

Read All Comments

Popular Stories

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by Juli Clover

Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...

• 113 comments

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by Joe Rossignol

Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...

• 28 comments

iPhone 17 Air USB-C Port May Have This Unusual Design Quirk

Wednesday April 30, 2025 3:59 am PDT by Tim Hardwick

Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years. iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack) At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...

• 142 comments

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

Monday April 28, 2025 4:29 am PDT by Tim Hardwick

Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman. In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...

• 122 comments

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by Juli Clover

This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...

• 65 comments

AirPods Pro 3 Just Months Away – Here's What We Know

Tuesday April 29, 2025 1:30 am PDT by Tim Hardwick

Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...

• 102 comments

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by Joe Rossignol

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. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...

All iPhone 17 Models Again Rumored to Feature 12GB of RAM

Tuesday April 29, 2025 3:36 am PDT by Tim Hardwick

All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station. The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM. ...

• 83 comments

Apple Seeds Build 12D61 of OS X Beta 10.8.3 to Developers

Top Rated Comments

Popular Stories

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

iPhone 17 Reaches Key Milestone Ahead of Mass Production

iPhone 17 Air USB-C Port May Have This Unusual Design Quirk

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

AirPods Pro 3 Just Months Away – Here's What We Know

iPhone 17 Pro Launching Later This Year With These 13 New Features

All iPhone 17 Models Again Rumored to Feature 12GB of RAM

Next Article

Guides

Upcoming

Other Stories