Apple Releases Fourth Beta of macOS Mojave to Public Beta Testers - MacRumors
Skip to Content

Apple Releases Fourth Beta of macOS Mojave to Public Beta Testers

Apple today seeded the fourth beta of an upcoming macOS Mojave update to its public beta testing group, two weeks seeding the third macOS Mojave public beta. Today's fourth public beta is the same as the fifth developer beta released earlier this week.

Beta testers who have signed up for Apple's beta testing program can download the macOS Mojave beta through the Software Update mechanism in the Mac App Store. Subsequent betas are installed in a different way, using the Software Update icon in System Preferences.


Those who want to be a part of Apple's beta testing program can sign up to participate through the beta testing website, which gives users access to iOS, macOS, and tvOS betas. Potential beta testers should make a full Time Machine backup before installing macOS Mojave, and it should not be installed on a primary machine because betas are unstable and often have serious bugs.

Today's macOS Mojave update introduces several new wallpapers appropriate for use with Dark Mode. There are several wallpapers that feature images of the Mojave desert, along with new abstract oil slick-style wallpapers, new dark flower wallpapers, images that have been used to promote recent Mac refreshes, and more.

mojavewallpapers
macOS Mojave's main new feature is a systemwide Dark Mode, which gives Mac users a new way to view the operating system. A revamped Mac App Store makes it easier than ever to discover great apps, while Dynamic Desktops give you wallpapers that subtly change throughout the day.

An improved Finder window with Gallery View, Sidebar, Quick Look, and Quick Actions makes it easier to manipulate, edit, and organize your files, while Desktop Stacks organizes all of the files on your desktop.

macos mojave roundup
The Apple News, Stocks, Home, and Voice Memos apps have made their way to the Mac in Mojave, and for the first time, you can use Siri on Mac to control HomeKit products. Group FaceTime, an iOS 12 feature, is also available in Mojave and lets you chat with up to 32 people at one time.

Apple is keeping your data safer than ever with new security and privacy improvements, and Safari in macOS Mojave makes it much harder to track you through share/like buttons and via your system configuration.

macOS Mojave is compatible with 2015 and newer MacBooks, 2012 and newer MacBook Air, MacBook Pro, Mac mini, and iMac models, the 2017 iMac Pro, and Mac Pro models from late 2013 and mid-2010 and mid-2012 models with Metal-capable GPUs.

Mojave will be available in a beta capacity for the next several months so Apple can work out bugs ahead of a fall release.

Related Forum: macOS Mojave

Popular Stories

Apple Logo Gradient 16x9 1

Apple Just Made an Extremely Rare Product Announcement

Thursday August 27, 2026 7:58 am PDT by
The new Mac mini and Mac Studio models unveiled by Apple this week are the company's first new Macs announced in August since 2020. It is extremely rare for Apple to announce new products of any kind in August, excluding smaller things like new color options and accessories. As mentioned, Apple's last notable August product announcement was in 2020, when it updated the 27-inch iMac and a...
Surprise and Shine Feature

Apple Event Announced for September 9: 'Surprise and Shine'

Wednesday August 26, 2026 9:02 am PDT by
Apple plans to hold its annual iPhone-centric event on Wednesday, September 9 at the Apple Park campus in Cupertino, California. The event will begin at 10:00 a.m. Pacific Time, with select members of the media invited to attend. Subscribe to the MacRumors YouTube channel for more videos. The September 2026 iPhone event will see Apple announce the iPhone 18 Pro, the iPhone 18 Pro Max, and the ...
Apple Event Logo

Apple Unveiled Four New Products Today

Tuesday August 25, 2026 8:39 am PDT by
Apple today unveiled a new Mac mini with M6 and M5 Pro chip options, a new Mac Studio with M5 Max and M5 Ultra chip options, a new version of the Polishing Cloth with a lower price, and updated Magic Keyboards for Macs. To learn more about these products, read our coverage below: Apple Announces New Mac Mini With M6 and M5 Pro Chips and More Apple Unveils New Mac Studio With M5 Max and M5...

Top Rated Comments

TMRJIJ Avatar
105 months ago
Is this stable enough to use on primary Mac?
Beta software is beta
Score: 7 Votes (Like | Disagree)
macintoshmac Avatar
105 months ago
Wooooooooo hoooo!! Finally so many new wallpapers !!!! :D:D
Score: 3 Votes (Like | Disagree)
105 months ago
Is this stable enough to use on primary Mac?
I am using it as a primary Mac and it was stable pretty much for me. Except the last beta when it was slow and sluggish.

However, I do have 2 Macs and one runs High Sierra just in case... :)
If I would have only 1 machine - NO WAY! Try to find patience till the final release.
Score: 3 Votes (Like | Disagree)
Heineken Avatar
105 months ago
Is this stable enough to use on primary Mac?
I hope it's not a serious question.
Score: 3 Votes (Like | Disagree)
Bornee35 Avatar
105 months ago
Is this stable enough to use on primary Mac?
no
Score: 3 Votes (Like | Disagree)
105 months ago
Is this stable enough to use on primary Mac?
No. Never use any beta on a primary machine unless you are prepared to lose everything.
Score: 2 Votes (Like | Disagree)