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

iPhone Handoff Feature

iOS 27 Introduces New 'iPhone Handoff' Feature

Wednesday September 2, 2026 12:35 pm PDT by
Apple has added a new "iPhone Handoff" feature to iOS 27 that will allow you to switch between two iPhones while using the same phone number on each device. This functionality was briefly mentioned during the WWDC 2026 keynote in June, on a slide that listed hundreds of new features coming in iOS 27 and corresponding software updates, but Apple never shared any further details at the time. ...
Dynamic Island iPhone 18 Pro Feature

iPhone 18 Pro Prices Estimated Ahead of Apple Event Next Week

Thursday September 3, 2026 3:41 am PDT by
Less than a week before Apple debuts new iPhone 18 Pro models, research firm TrendForce has estimated the prices of the devices based on the latest hardware cost environment. TrendForce's price estimates compared to last year's models look like this: Model Starting Price Model Starting Price Change iPhone 17 Pro $1,099 iPhone 18 Pro $...
Apple Foldable Thumb

iPhone Ultra's Very High Price and Features Revealed in New Report

Thursday September 3, 2026 7:33 am PDT by
Ahead of Apple's event on Wednesday, September 9, where it is expected to unveil its first-ever foldable iPhone, Taiwanese research firm TrendForce today outlined the device's estimated price range, features, and some other key details. In the U.S., TrendForce estimated that the foldable iPhone will have a starting price of $2,099 to $2,299 and said the highest-end configurations could...

Top Rated Comments

TMRJIJ Avatar
106 months ago
Is this stable enough to use on primary Mac?
Beta software is beta
Score: 7 Votes (Like | Disagree)
macintoshmac Avatar
106 months ago
Wooooooooo hoooo!! Finally so many new wallpapers !!!! :D:D
Score: 3 Votes (Like | Disagree)
106 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
106 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
106 months ago
Is this stable enough to use on primary Mac?
no
Score: 3 Votes (Like | Disagree)
106 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)