Got a tip for us?Let us know

a. Send us an email
b. Anonymous form

Apple Seeds OS X Mavericks 10.9.3 Build 13D61 to Developers

Wednesday May 7, 2014 4:14 PM PDT by Juli Clover

Apple 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

153 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

153 months ago

Nothing for non-devs who joined the OS X Beta program...again?? :-(

Score: 4 Votes (Like | Disagree)

tywebb13

153 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

153 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)

unplugme71

153 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)

3282868

153 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

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by Joe Rossignol

While the iOS 26.3 Release Candidate is now available ahead of a public release, the first iOS 26.4 beta is likely still at least a week away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...

• 34 comments

Apple Makes Its Second-Biggest Acquisition Ever

Tuesday February 3, 2026 12:45 pm PST by Joe Rossignol

Apple recently acquired Israeli startup Q.ai for close to $2 billion, according to Financial Times sources. That would make this Apple's second-biggest acquisition ever, after it paid $3 billion for the popular headphone maker Beats in 2014. This is also the largest known Apple acquisition since the company purchased Intel's smartphone modem business and patents for $1 billion in 2019....

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by Joe Rossignol

In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...

• 69 comments

M5 Pro and M5 Max MacBook Pro Launch Imminent as Reseller Stock Dwindles

Tuesday February 3, 2026 12:12 pm PST by Juli Clover

New M5 Pro and M5 Max MacBook Pro models are slated to launch in the near future, according to information shared with MacRumors by an Apple Premium Reseller. Subscribe to the MacRumors YouTube channel for more videos. The third-party Apple retailer said that MacBook Pro stock is very low currently because there is an imminent new product introduction. Apple typically coordinates supply with...

• 149 comments

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by Joe Rossignol

The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...