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

Tim Cook Rainbow

Apple Event in October? Here's What to Expect

Monday September 29, 2025 9:31 am PDT by
Apple's annual iPhone event is in the rearview mirror, but rumors suggest the company plans to release a handful of additional products before the year ends. Will there be another Apple event this October? We discuss the possibility below. Apple in October Apple's most recent October events were in 2021 and 2023. In 2022 and 2024, Apple did not host an October event. Instead, it...
apple wallet drivers license feature iPhone 15 pro teal 1

Apple's iPhone Driver's License Feature Now Available in 11 U.S. States

Tuesday September 30, 2025 6:40 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Apple recently revealed that the feature would soon be available in North Dakota, and starting today, the feature has officially gone...
space black mbp

Here's Every New Apple Product That Leaked Yesterday

Wednesday October 1, 2025 8:27 am PDT by
A handful of upcoming Apple products leaked yesterday, through a combination of YouTube videos out of Russia and U.S. Federal Communications Commission (FCC) documents that were released, despite Apple's confidentiality requests. The leaked products include an iPad Pro with an M5 chip, as well as updated MacBook Pro and Apple Vision Pro models. All of these devices had already been rumored...
maxresdefault

New iPad Pro With M5 Chip Leaked in Unboxing Video

Tuesday September 30, 2025 8:39 am PDT by
An apparent unboxing video for an unannounced iPad Pro with the M5 chip was uploaded to YouTube today by Russian channel Wylsacom. The same YouTube account leaked the 14-inch MacBook Pro with the M4 chip before it was announced by Apple last year, so this is likely a legitimate leak. Based on the box shown in the video, this appears to be a 13-inch iPad Pro with an M5 chip, 256GB of...
fcc vision pro leak

FCC Accidentally Leaks Apple's Next Vision Pro

Tuesday September 30, 2025 3:48 pm PDT by
The United States Federal Communications Commission (FCC) has seemingly confirmed Apple's work on an updated version of the Vision Pro headset. One of several documents the FCC shared today references an Apple-designed "Head Mounted Device" with a model number of A3416. An included image confirms the device is a Vision Pro. The FCC's uploads are transmission tests, SAR test reports, and...
iOS 26

Apple Releases iOS 26.0.1 With Fixes for Wi-Fi, Cellular, and Camera Issues on iPhone 17 Models

Monday September 29, 2025 10:12 am PDT by
Apple today released iOS 26.0.1 and iPadOS 26.0.1, the first updates to the iOS 26 and iPadOS 26 operating systems that came out earlier this week. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's release notes for the update, iOS 26.0.1 addresses a bug that could cause aberrations in...
macbook pro prime day 2025

FCC Leaks Upcoming MacBook Pro and More

Tuesday September 30, 2025 1:58 pm PDT by
The United States Federal Communications Commission has confirmed Apple's work on a new version of the MacBook Pro and several other products, leaking details on the devices ahead of launch. The FCC published documents that reference model numbers that do not correspond with existing devices. A3434, for example, references an unreleased MacBook Pro, while other numbers are likely for...
Apple MacBook Pro M4 hero

New MacBook Pro Nears Mass Production, But Four Bigger Upgrades Expected Next Year

Sunday September 28, 2025 2:08 pm PDT by
Apple's next MacBook Pro models will enter mass production soon, according to the latest information shared by Bloomberg's Mark Gurman. In his Power On newsletter today, Gurman said he continues to believe the new MacBook Pro models will be released at some point between late 2025 and the first quarter of 2026, meaning they should be available to order by March at the latest. Apple often...
iOS 26

Apple Continues to Prepare iOS 26.0.1 With Multiple Bug Fixes Expected

Sunday September 28, 2025 1:30 pm PDT by
Apple is preparing to release iOS 26.0.1, according to a private account on X with a proven track record of sharing information about future iOS versions. The account initially said iOS 26.0.1 would have a build number of 23A350, but they now expect the update to have a build number of 23A355. This suggests that the software update will include more bug fixes or changes than initially...
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,...