mavericks.pngApple today seeded build 13E16 of OS X 10.9.4 to developers, approximately two weeks after releasing the first OS X 10.9.4 beta and almost a month after the public release of OS X 10.9.3, which included enhanced support for 4K displays and syncing improvements.

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

It remains unclear what improvements the 10.9.4 update will bring to Mavericks, but it is likely to include bug fixes and stability enhancements. Apple is asking developers to focus on Graphics Drivers, Bluetooth, Audio Drivers, Finder, App Store, and Safari.

Apple has also seeded Safari 6.1.5 and OS X Server 3.2 to developers.

Related Forum: OS X Mavericks

Top Rated Comments

larrylaffer Avatar
larrylaffer
148 months ago
This will be out sometime this summer.

You don't say!
Score: 16 Votes (Like | Disagree)
proline Avatar
proline
148 months ago
I wish Apple keep releasing updates for Mavericks as they did with older OS X systems such as Snow Leopard.
I'm not installing Yosemite anytime soon, Mavericks just rocks.
LOL. Yosemite is an update to Mavericks- it is free and runs on the same machines. Like all updates, it fixes some bugs, introduces some bugs (hopefully less), and adds the odd feature. I don't get some people's fragile psychological states. If Apple calls it 10.9.5 you will run it but if it is 10.10 then you're scared? What if they call it 10.9.10? Or is it the fact that they made changes to the skin of it that is so scary?
Score: 8 Votes (Like | Disagree)
SVTmaniac Avatar
SVTmaniac
148 months ago
LOL. You have no idea whether or not Yosemite is "an update to Mavericks.' It could be redesigned from the ground up. It could be radically different, the way 10.4.10 was to 10.4.9, and all the other OSes were.

You have no idea what you're talking about.

And no, they couldn't call it 10.9.5, else they'd have to call it a bugfix update for Mavericks.

Please stop talking.

Why is everyone on MacRumors so eccentric? You'd think people would be excited about new software and not cling to the past. It's kind of ridiculous.
Score: 5 Votes (Like | Disagree)
aj8690 Avatar
aj8690
148 months ago


I don't understand. By the way, there was no such thing as Mac OS System 1.0.
http://en.wikipedia.org/wiki/System_1
Score: 4 Votes (Like | Disagree)
chrfr Avatar
chrfr
148 months ago

That's System 1, not Mac OS System 1.0.

Any particular reason you're being so pedantic over something totally unrelated to the topic?
Score: 3 Votes (Like | Disagree)
-LikesMac- Avatar
-LikesMac-
148 months ago
But is Safari...? (Just kidding)

This news seems overshadowed by OS X Yosemite. :p
Score: 3 Votes (Like | Disagree)
Read All Comments

Popular Stories

apple oct 2024 mac tease

Apple Expected to Announce These Two to Three Products 'This Week'

Sunday October 12, 2025 7:05 am PDT by
Apple plans to announce new products "this week," according to Bloomberg's Mark Gurman. Apple's "Mac Your Calendars" teaser last October In his Power On newsletter today, Gurman said the products set to be updated this week include the iPad Pro, Vision Pro, and "likely" the base 14-inch MacBook Pro, with all three likely to receive a spec bump with Apple's next-generation M5 chip. Gurman...
Read Full Article • 182 comments
Apple TV Plus Feature 2 Magenta and Blue

Apple TV+ Being Rebranded as Apple TV

Monday October 13, 2025 8:25 am PDT by
Buried in its announcement about "F1: The Movie" making its streaming debut on December 12, Apple has also announced that Apple TV+ is being rebranded as simply Apple TV. A single line near the end of the press release states "Apple TV+ is now simply Apple TV, with a vibrant new identity," though Apple's website has yet to be updated with any changes, so we're unsure on the details of the...
Read Full Article • 277 comments
iOS 26 Feature

Apple Preparing iOS 26.0.2 Update for iPhones

Saturday October 11, 2025 6:59 pm PDT by
Apple's software engineers are internally testing iOS 26.0.2, according to MacRumors logs, which have been a reliable indicator of upcoming iOS versions. iOS 26.0.2 will likely be a minor update that addresses bugs and/or security vulnerabilities, but we do not know any specific details yet. The update will likely be released within the next few weeks. Last month, Apple released iOS...
Read Full Article • 79 comments
M5 MacBook Pro

Apple Announces New 14-Inch MacBook Pro With M5 Chip

Wednesday October 15, 2025 6:07 am PDT by
Apple today updated the 14-inch MacBook Pro base model with its new M5 chip, which is also available in updated iPad Pro and Vision Pro models. In addition, the base 14-inch MacBook Pro can now be configured with up to 4TB of storage on Apple's online store, whereas the previous model maxed out at 2TB. However, the maximum amount of unified RAM available for this model remains 32GB. Like...
Read Full Article • 230 comments
joz macbook tease

Apple Teases Upcoming M5 MacBook Pro Launch: 'Something Powerful is Coming'

Tuesday October 14, 2025 11:59 am PDT by
Apple marketing chief Greg Joswiak today teased the launch of an upcoming product, saying "something powerful is coming" on social media. Subscribe to the MacRumors YouTube channel for more videos. A short animation accompanying Joswiak's teaser reveals a brief glimpse of a MacBook Pro along with the words "coming soon." The shape of the MacBook Pro is a V, which is the Roman numeral...
Read Full Article • 198 comments
Apple iPad Pro hero M5

Apple Debuts New iPad Pro With M5 Chip, Faster Charging, and More

Wednesday October 15, 2025 6:16 am PDT by
Apple today announced the next-generation iPad Pro, featuring the custom-designed M5, C1X, and N1 chips. The M5 chip has up to a 10-core CPU, with four performance cores and six efficiency cores. It features a next-generation GPU with Neural Accelerator in each core, allowing the new iPad Pro to deliver up to 3.5x the AI performance than the previous model, and a third-generation ray-tracing ...
Read Full Article • 237 comments
iPhone 17 Pro Colors

iPhone 18 Pro Already Rumored to Have These 6 New Features

Saturday October 11, 2025 10:10 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are still nearly a year away, a handful of new features and changes have already been rumored for the devices. Below, we have recapped some of the early iPhone 18 Pro rumors so far. Smaller Dynamic Island The standard iPhone 18, iPhone 18 Pro, and iPhone 18 Pro Max will be equipped with a slightly smaller Dynamic Island, but the devices will...
Read Full Article • 85 comments
airpods max 2024 colors

AirPods Max 2: Everything We Know So Far

Tuesday October 14, 2025 8:43 am PDT by
Apple's AirPods Max have now been available for almost five years, so what do we know about the second-generation version? According to Apple supply chain analyst Ming-Chi Kuo, the new AirPods Max will be lighter than the current ones, but exactly how much is as yet known. The current AirPods Max weigh 0.85 pounds (386.2 grams), excluding the charging case, making it one of the heavier...
Read Full Article • 90 comments
All AirPods 2025

Apple Reportedly Working on New AirPods Pro, AirPods 5, and H3 Chip

Sunday October 12, 2025 9:24 am PDT by
After releasing AirPods Pro 3 last month, Apple is already working on the next AirPods Pro, according to Bloomberg's Mark Gurman. It is unclear if the new AirPods Pro would be branded as AirPods Pro 4, or if they would be considered an updated version of AirPods Pro 3. Gurman did not take a position, opting to describe them as a "new version" of the "high-end in-ear buds." AirPods Pro 2...
Read Full Article • 68 comments
macbook pro blue

Apple's M5 MacBook Pro Imminent: What to Expect

Tuesday October 14, 2025 4:35 pm PDT by
Apple is going to launch a new version of the MacBook Pro as soon as tomorrow, so we thought we'd go over what to expect from Apple's upcoming Mac. M5 Chip The MacBook Pro will be one of the first new devices to use the next-generation M5 chip, which will replace the M4 chip. The M5 is built on TSMC's more advanced 3-nanometer process, and it will bring speed and efficiency improvements. ...
Read Full Article • 56 comments