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
149 months ago
This will be out sometime this summer.

You don't say!
Score: 16 Votes (Like | Disagree)
proline Avatar
proline
149 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
149 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
149 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
149 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-
149 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

iOS 26

iOS 26.1 Coming Soon: New Features for Your iPhone and Release Date

Monday October 27, 2025 7:55 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. Below, we outline key details about iOS 26.1. Release Date Given that Apple has yet to seed an iOS 26.1 Release Candidate, which is typically the final beta version, the...
Read Full Article
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...
Read Full Article • 57 comments
maxresdefault

Apple TV 4K Could Still Launch Before 2025 Ends: All the Rumored Features

Monday October 27, 2025 4:51 pm PDT by
Apple is designing an updated version of the Apple TV 4K, and rumors suggest that it could come out sometime in the next couple of months. We're not expecting a major overhaul with design changes, but even a simple chip upgrade will bring major improvements to Apple's set-top box. Subscribe to the MacRumors YouTube channel for more videos. We've rounded up all the latest Apple TV rumors. ...
Read Full Article • 158 comments
iOS 26

Apple Seeds iOS 26.1, iPadOS 26.1, and macOS Tahoe 26.1 Release Candidates

Tuesday October 28, 2025 1:07 pm PDT by
Apple today provided developers and public beta testers with the release candidate versions of upcoming iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, watchOS 26.1, and visionOS 26.1 updates for testing purposes. The RCs betas come a week after Apple released the fourth betas. The new betas can be downloaded from the Settings app on a compatible device by going to General > Software...
Read Full Article • 64 comments
M6 MacBook Pro Feature 1

M6 MacBook Pro: Release Date, Pricing, and What to Expect

Monday October 27, 2025 9:15 am PDT by
Apple this month refreshed the 14-inch MacBook Pro base model with its new M5 chip, and higher-end 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips are expected to follow in early 2026. However, these machines will represent the final update to the current design, with Apple reportedly developing a completely new version of the MacBook Pro packed with next-generation hardware...
Read Full Article • 146 comments
iPhone 17 Pro Cosmic Orange

8 Reasons to Wait for Next Year's iPhone 18 Pro

Thursday October 30, 2025 4:42 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Read Full Article • 110 comments
macos tahoe

Here Are Apple's Release Notes for macOS Tahoe 26.1

Tuesday October 28, 2025 1:21 pm PDT by
Apple today provided developers and public beta testers with the release candidate version of macOS Tahoe 26.1, which means the update will likely see a public launch next week. The release candidate includes notes on what's in the update, so we have a full picture of the new features that Apple has included. macOS Tahoe 26.1 adds AutoMix support over AirPlay, improved FaceTime audio...
Read Full Article • 64 comments
iPhone Car Key Kia

Another Vehicle Brand Gaining iPhone Car Keys Support

Tuesday October 28, 2025 5:27 am PDT by
Apple is preparing to bring support for its digital car key feature to Jetour vehicles, according to evidence uncovered on Apple's backend by MacRumors contributor Aaron Perris. Introduced in 2022, Car Keys allows an iPhone or Apple Watch to unlock a vehicle through the Wallet app. A digital version of a car key is stored in Wallet, and unlocking can be done by holding an Apple Watch or...
Read Full Article • 15 comments
ipad mini 7 feature blue

OLED iPad Mini: Release Date, Pricing, and What to Expect

Wednesday October 29, 2025 7:13 am PDT by
Rumors are stoking excitement for the next-generation iPad mini that Apple is reportedly close to launching. So what should we expect from the successor to the iPad mini 7 that Apple released over a year ago? Read on to find out. 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...
Read Full Article • 64 comments