mavericks_round_iconApple today seeded build 13D17 of OS X 10.9.3 to developers, one week after releasing the first OS X 10.9.3 beta, build 13D12. The beta is available through the Software Update mechanism in the Mac App Store as well as through the Mac Dev Center.

Apple is currently asking developers to focus on Graphics Drivers and Audio. As was discovered last week, 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.

Top Rated Comments

soundguyami Avatar
151 months ago
Hey macrumors, you stole my thread (again):

https://forums.macrumors.com/showthread.php?t=1716301

You might take note that MacRumors actually has useful information in it.
Score: 14 Votes (Like | Disagree)
nsayer Avatar
151 months ago
Do NDA's mean nothing anymore. Seriously if you are part of the program and you post here you are in violation of your NDA.

There is no other mechanism available to me to get support.

The seed discussion area is broken.
I can't take the machine to the genius bar because it's running a seed.
I can't run the feedback assistant because the machine is bricked.

WTF else can I do?!

If Apple wants to get mad at me for posting here, then that's fine with me. They've seriously screwed the pooch and I have no other options.
Score: 5 Votes (Like | Disagree)
wermy Avatar
151 months ago
The beta also includes a 4K display option for 60Ghz output from the Retina MacBook Pro.

60Ghz huh? That's pretty good. ;)
Score: 5 Votes (Like | Disagree)
nsayer Avatar
151 months ago
Not to rebut everything you said above but you are incorrect. I will not disclose which points. I am not trying to be rude or pick a fight you are just not correct. With that being said. Go into recovery mode and if you are part of the seed the new seed will automatically download, the recovery partition I am sure is intact.
So far as I am aware, there is no newer seed. It would download the same one, which I have no particular reason to believe will resolve the WindowServer's assertion failure.

Your assertion that I am incorrect with no supporting evidence has no more value than simply saying "neener neener."
Score: 4 Votes (Like | Disagree)
nsayer Avatar
151 months ago
I think your "Name," says it all.

My username is first initial, last name. It's been that for 30 years.

The reason I can't rebut your specific issues is the fact I won't violate any agreement I am currently under. Every negative assertion is clearly in conflict with what I know to be true. So take what you posted and each individual assertion reverse it and boom, there you have it.

You could have been helpful, but you've been so much more.
Score: 3 Votes (Like | Disagree)
Steve121178 Avatar
151 months ago
At the time I posted there was nothing else here about it.

So information I provided was useful.

I didn't know how long it would take for a news story to go up here about it.

Who cares? MacRumors actually provided people with relevant information.
Score: 3 Votes (Like | Disagree)

Popular Stories

john ternus on stage

Gurman: Major Apple Leadership Shakeup Impending With John Ternus as Next CEO

Monday October 6, 2025 6:21 am PDT by
Apple is entering its most significant leadership transition in more than a decade as multiple senior executives prepare to depart and CEO Tim Cook begins to shape the company's next generation of leaders, according to Bloomberg's Mark Gurman. In the latest edition of his "Power On" newsletter, Gurman explained that Jeff Williams, who was viewed as Cook's potential successor for several...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 3, AirPods Pro 2 and AirPods 4

Tuesday October 7, 2025 11:27 am PDT by
Apple today released new firmware designed for the AirPods Pro 3, prior-generation AirPods Pro 2, and the AirPods 4 models. The firmware has a build number of 8A358, up from 8A356. There's no word on what's include in the updated firmware, but the prior 8A356 update added iOS 26 features to the AirPods Pro 2, AirPods Pro 3, and AirPods 4 with ANC. The software introduced better audio quality ...
iOS 26 Feature

iOS 26.1 to iOS 26.4 Will Add These New Features to Your iPhone

Wednesday October 1, 2025 1:26 pm PDT by
iOS 26 was released last month, but the software train never stops, and iOS 26.1 beta testing is already underway. So far, iOS 26.1 makes both Apple Intelligence and Live Translation on compatible AirPods available in additional languages, and it includes some other minor changes across Apple Music, Calendar, Photos, and Safari. More features and changes will follow in future versions,...
ios 26 1 slide to stop

Apple Fixes Alarms in iOS 26.1

Monday October 6, 2025 11:56 am PDT by
With the second beta of iOS 26.1, Apple updated the design of alarms set on the iPhone, making them harder to dismiss than before. Stopping an alarm in iOS 26.1 beta 2 requires a new Slide to Stop gesture rather than a simple tap. You can continue to tap to snooze an alarm, but if you want to turn it off entirely, you need to use a swipe. Transitioning from a tap to a slide gesture to...
ipad mini 7 feature blue

iPad Mini 8 on the Way: Expected Features and Release Timeline

Monday October 6, 2025 5:05 am PDT by
A new iPad mini is "absolutely" on the way, according to Bloomberg's Mark Gurman. So what should we expect from the successor to the iPad mini 7 that Apple released a year ago? Processor and Performance Apple is working on a next-generation version of the iPad mini (codename J510/J511) that features the A19 Pro chip, according to information found in code that Apple mistakenly shared in...
iCloud iPhone 17 Pro

Apple Highlights Five Perks for iPhone Users Who Pay for iCloud Storage

Monday October 6, 2025 6:29 am PDT by
After launching new iPhones last month, Apple is promoting iCloud+ with a prominent banner on its home page, in a bid to boost its services revenue. In addition to more storage, all iCloud+ plans include five perks for iPhone users. As a refresher, iCloud includes 5GB of storage for free. If you want extra storage, you need to subscribe to an iCloud+ plan. In the United States, prices range...
iOS 26

Everything New in iOS 26.1 Beta 2

Monday October 6, 2025 3:54 pm PDT by
Apple released the second beta of iOS 26.1 and iPadOS 26.1, introducing useful changes to alarms, multitasking on the iPad, and more. There are also subtle tweaks to some of the Liquid Glass design elements as Apple continues to refine iOS 26. Alarms and Timers Alarms set using the Clock app now have a slide to stop button rather than a tap to stop button on the Lock Screen. To snooze an...
iOS 26 Feature

iOS 26 Adds These 200 New Features and Changes to Your iPhone

Saturday October 4, 2025 8:19 am PDT by
Apple's website offers a list of nearly 200 new features and changes (PDF file) included in the software update, released last month. Apple also shared equivalent lists for iPadOS 26 and macOS Tahoe. iOS 26 is compatible with the iPhone 11 and newer. To install the update, open the Settings app on your iPhone, tap on General, and tap on Software Update. Below, we have highlighted eight ...
macbook pro pink

M5 MacBook Pro Could Launch in October as M4 Model Faces Supply Constraints

Monday October 6, 2025 3:23 pm PDT by
Supplies of the 14-inch M4 MacBook Pro model appear to be constrained amid rumors that an upgraded M5 model could launch as soon as this year. As noted by Bloomberg's Mark Gurman, custom configurations of the M4 MacBook Pro model have a delayed shipping date and will not be delivered to customers until October 23 to 28. The restricted supply could be an indication that Apple is planning to...