Everything new in macOS Mojave beta 4: New dynamic wallpaper & more

in macOS edited September 2019
Earlier this week, Apple released the fourth beta of macOS Mojave to developers, and the third beta to public beta testers. Unlike beta three, there were actually quite a few changes in this update, including a new dynamic desktop wallpaper.

Anyone who used Dark Mode in the first three betas are fully aware that dynamic wallpaper didn't completely work. It supported Light Mode, but not Dark. Dynamic backgrounds now work in the latest betas, changing their appearance throughout the day based on location.

Dynamic desktops have now been split into their own section within the Desktop and Screensaver panel of System Preferences.

There is also a new dynamic background, called Solar Gradient. It switches from a bright orange to a deep blue throughout the day and night.

Since macOS Mojave contains a new interface for taking screenshots, there was no need for the aging Grab utility. It has been removed in the latest beta and replaced with an "app" called Screenshot that launches the new screen capture hub overlay.

We noticed that the RAM allocation issues found in previous betas seem to have been resolved. This has led to an overall speedier experience. Specifically, in the first three betas it could take up to six hours for a longer video to export. After installing beta four, the same video can take maybe 20-30 minutes. A huge improvement.


  • New "Dynamic" section of backgrounds

  • Dynamic background now works in Dark Mode

  • New Solar Gradient dynamic background

  • Grab utility has been removed

  • New Screenshot "app" that launches new screen capture hub

  • Support for latest 2018 MacBook Pros

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  • Reply 1 of 4
    billearlbillearl Posts: 10member
    How about fixing stuff that doesn't work right?
  • Reply 2 of 4
    entropysentropys Posts: 3,846member
    Here is an enhancement suggestion for Apple:  set up a webcam in some really classic locations that can be accessed by an expanded version of this dynamic image feature. Eg Times Square, Buckingham palace, Rio, Sydney harbour (most big cities really), maybe also natural places like Ayers Rock, Victoria falls, Niagara, Mt Kilimanjaro, Matterhorn etc.

    Most features that might be visible to some degree at night would be best I suppose though. Cities would be good as people could have their home town on the desktop and see what it is like right now even though they are on the other side of the world.  

    Maybe in 10.14.3
  • Reply 3 of 4
    bonobobbonobob Posts: 356member
    billearl said:
    How about fixing stuff that doesn't work right?
    I presume you mean something along the lines of the RAM issue, or the dynamic background fixes mentioned above. Or the horribly messed up scrolling they had in the News app, but is now fixed. That was probably on account of bugs in the new iOS/MacOS shared API, so would fix multiple apps. Just because AI didn't mention all the changes in the new beta doesn't mean they aren't there.
  • Reply 4 of 4
    Rayz2016Rayz2016 Posts: 6,957member
    billearl said:
    How about fixing stuff that doesn't work right?
    Amazing how many people install beta software without understanding what beta software is. 
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