Apple Seeds OS X Mavericks 10.9.3 Build 13D61 to Developers - MacRumors
Skip to Content

Apple Seeds OS X Mavericks 10.9.3 Build 13D61 to Developers

by

mavericks.pngApple today seeded build 13D61 of OS X 10.9.3 to developers, just over a week after releasing the ninth OS X beta, build 13D55, and nearly two months after the first 10.9.3 beta. This seed is accompanied by Safari 7.0.4.

The beta is available through the Software Update mechanism in the Mac App Store as well as through the Mac Dev Center.

Apple continues to ask developers to focus on Graphics Drivers, Audio, Mail, Contacts and Calendar sync over USB in iTunes, and Safari. As was discovered with the first beta, 10.9.3 adds new support for 4K displays, offering "Retina" resolutions that improve readability along with support for 60Hz output from the Retina MacBook Pro.

OS X 10.9.3 is likely nearing completion, as AppleCare employees were today seeded 10.9.3 build 13D62, one build later than what developers are receiving. A public launch could come as soon as this week.

Top Rated Comments

seme332 Avatar
seme332
155 months ago
Weird :s

YES! That is the weirdest thing! Why did I enroll to this program when it doesn't give me the newest beta?
Score: 6 Votes (Like | Disagree)
Crunch Avatar
Crunch
155 months ago
Nothing for non-devs who joined the OS X Beta program...again?? :-(
Score: 4 Votes (Like | Disagree)
T
tywebb13
155 months ago
It won't always give you the same betas as developers, and even when it does, you won't necessarily get it at the same time.

Even developers don't get all the betas. They did not get builds 13D19, 13D57, 13D59 and 13D62. (Although there is some evidence that this last one might become the public release - but if developer bug reports necessitate it going to a higher one than this, it won't be).

The ones you get depend on which program you are in and which seed configuration utility you install.

Developers have a different seed configuration utility to the one given to public beta testers.

Why do I need to quote myself?
Score: 3 Votes (Like | Disagree)
RedRaven571 Avatar
RedRaven571
155 months ago
Apple Seeds OS X Mavericks 10.9.3 Build 13X127 to Developers

Apple today seeded build 13X127 of OS X 10.9.3 to developers, just over a week after releasing the one hundred twenty-sixth OS X beta, build 13X121, and nearly two years after the first 10.9.3 beta. :eek:
Score: 2 Votes (Like | Disagree)
U
unplugme71
155 months ago
Yes. It's been a week since macrumors rumoured that it will be released last week...
I'm banking on today, got $10 on the table with a friend. 10am (California time)
Score: 2 Votes (Like | Disagree)
3
3282868
155 months ago
Memory management seems to have a 10-15% improvement. Utilizing a few programs, I test performance levels after each update. There is a noticeable difference running the same app's on a day-to-day basis on my Mac Pro6,1 8-Core w/ 16GB RAM. Roughly 45-55% of my RAM is used on a general basis, compared to ~30-40% now.
Score: 2 Votes (Like | Disagree)
Read All Comments

Popular Stories

iphone 17 pro dark blue 1

Apple Preparing 'Most Significant Overhaul in the iPhone's History'

Sunday March 29, 2026 8:18 am PDT by
Bloomberg's Mark Gurman has high expectations for Apple's first foldable iPhone. In his Power On newsletter today, he said the foldable iPhone will be "the most significant overhaul in the iPhone's history." "iPhone 4, iPhone 6 and iPhone X were clearly a big deal, but this is a whole new design," he said. Like Samsung's Galaxy Z Fold 7, the foldable iPhone will reportedly open up like ...
Read Full Article • 126 comments
Apple Event Logo

Apple to Launch These 15+ New Products Later This Year

Friday March 27, 2026 2:03 pm PDT by
March has been an incredibly busy month for Apple, with the company unveiling more than 10 new products and accessories. We said hello to the MacBook Neo at the start of the month, and we bid farewell to the Mac Pro at the end of it. Nevertheless, there is still a lot more to come this year. Beyond the usual annual updates to iPhones and Apple Watches, Apple's all-new smart home hub is...
Read Full Article • 63 comments
Apple Apps Grid

Apple Releasing Two New iPhone Apps This Year

Saturday March 28, 2026 8:00 am PDT by
Apple is expected to release two new iPhone apps this year, including an Apple Business app and a Siri app with chatbot-like functionality. With the Apple Business app, employees at businesses using the new Apple Business platform will be able to install apps for work, view contact information for colleagues, and request support. Apple Business is launching on April 14, and it replaces Apple ...
Read Full Article • 10 comments