Apple today seeded the fourth beta of an upcoming macOS Mojave 10.14.3 update to developers and public beta testers, a few days after releasing the third beta and more than a month after the launch of macOS Mojave 10.14.2.

The new macOS Mojave 10.14.3 beta can be downloaded through the Software Update mechanism in System Preferences after the proper profile has been installed from Apple's Developer Center or the public beta testing site.

macbookairmojave
We don't yet know what improvements the next update to macOS Mojave will bring, but it is likely to include bug fixes and performance improvements for issues that weren't able to be addressed in the macOS 10.14.2 update.

No new features were found in the first three betas of macOS 10.14.3, but if we find anything new in the fourth beta, we'll update this post.

Related Forum: macOS Mojave

Top Rated Comments

BigBoy2018 Avatar
79 months ago
The new Macbook Air does include a T2 chip. https://www.apple.com/macbook-air/

My 2018 mini has the T2 chip as well, but I have had no issues with it using Mojave.

As for Mojave, it has been rock solid on both my personal minis as well as my work mac pro 2012 and macbook air 2014.

I have no doubt it will be 'rock solid' for almost everyone. The issue is, when the time comes you want to replace or upgrade the storage drive in any of the T2 chip equipped macs, you can pretty much forget about it and just get a new motherboard or replace the computer entirely.

I fix Macs as a hobby. And I can't tell you how many Macs I've got running again for several years just but swapping out the faulty storage drive (ssd or hdd).

That will no longer be possible with 'T' chip equipped Macs, which is disappointing to say the least.
Score: 3 Votes (Like | Disagree)
jfischer Avatar
79 months ago

I'd like to know if the Air also has the T2 and how are people finding it.
I have a brand-new Air with the TouchID, so I presume it has the T2. So far it's been working fine. Had one or two WiFi disconnects with it over the first few weeks but other than that it's been solid. Upgraded from an OG 12" MacBook, so for me the Air is a huge upgrade as well as far as speed.
Score: 2 Votes (Like | Disagree)
Jack Neill Avatar
79 months ago
10.14.2 has been so rock solid for me. I love how it can only get better. The iOS 12/Mojave cycle has been a real step forward for Apple software quality, in my opinion of course.
Score: 2 Votes (Like | Disagree)
Konigi Avatar
79 months ago
Is there a reason why they never state what's in the beta?
Score: 2 Votes (Like | Disagree)
tywebb13 Avatar
79 months ago
Build number is 18D39a
Score: 1 Votes (Like | Disagree)
xflashx Avatar
79 months ago
But... I just updated to beta 3 o_O
Score: 1 Votes (Like | Disagree)

Popular Stories

iPhone 17 Pro Dual Tone Horizontal 1

iPhone 17 Pro Launching This Year With These 8 New Features

Tuesday January 28, 2025 11:48 am PST by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. iPhone 17 Pro concept based on rumors Below, we recap key changes rumored for the iPhone 17 Pro models as of January 2025: More aluminum: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models ...
airpods 4 blue

Apple Finally Explains How to Install New Firmware on Your AirPods

Monday January 27, 2025 11:17 am PST by
Apple regularly releases new firmware for the AirPods, AirPods Pro, and AirPods Max, but the company has historically provided limited information on how to initiate an update. That changed today, and Apple updated its AirPods firmware support page with more specific instructions. Prior to today, here's what Apple said on the subject: Firmware updates are delivered automatically while your...
tvOS 18 Thumb 3

Apple Releases tvOS 18.3

Monday January 27, 2025 10:00 am PST by
Apple today released tvOS 18.3, the newest version of the tvOS 18 operating system that came out in September. tvOS 18.3 comes more than a month after Apple released tvOS 18.2, and it is available for the Apple TV 4K and the Apple TV HD models. tvOS 18.3 can be downloaded using the Settings app on the ‌Apple TV‌. Open up Settings and go to System > Software Update to get the new software....
M6 MacBook Pro Feature 1

5 Reasons to Wait for Next Year's MacBook Pro

Monday January 27, 2025 4:25 am PST by
Apple in October 2024 overhauled its 14-inch and 16-inch MacBook Pro models, adding M4, M4 Pro, and M4 Max chips, Thunderbolt 5 ports on higher-end models, display changes, and more. That's quite a lot of updates in one go, but if you think this means a further major refresh for the MacBook Pro is now several years away, think again. Bloomberg's Mark Gurman has said he expects only a small...
ipad january sale

Amazon's New iPad Sale Has Up to $300 Off M4 iPad Pro, M2 iPad Air, and iPad Mini 7

Tuesday January 28, 2025 7:32 am PST by
Today we're tracking a few iPad discounts on Amazon, including the new iPad mini 7, M2 iPad Air, and M4 iPad Pro. These deals include multiple all-time low prices on Apple's tablets, matching the prices we tracked over the holiday season in many cases. Note: MacRumors is an affiliate partner with Amazon. When you click a link and make a purchase, we may receive a small payment, which helps us...
iPhone 17 Air Size Feature

iPhone 17 Air Design, Specs, and More: All the Rumors So Far

Wednesday January 29, 2025 4:00 am PST by
This year, Apple is expected to discontinue the iPhone "Plus" device in its iPhone 17 lineup to make way for an iPhone "Air," so-called because of its thin profile. Below is a compilation of every rumor and leak we have registered from reputable sources thus far about Apple's new entry in its flagship smartphone lineup. iPhone 17 "Air"? About the Name There has been some uncertainty...
iPhone SE 4 Thumb 1

iPhone SE 4 to Have Notch Instead of Dynamic Island

Tuesday January 28, 2025 1:49 pm PST by
The upcoming iPhone SE 4 will feature a notch instead of the Dynamic Island, respected display analyst Ross Young said today. The device will have a "notch like the iPhone 14," according to Young, which contradicts a recent leak that depicted a Dynamic Island. Earlier this month, leaker Evan Blass shared images said to feature the iPhone SE 4's design, but those images featured an iPhone...