- Nov 15, 2019 Apple has been working with developers to transition their apps, and in 2018 Apple informed them that macOS Mojave would be the last version of macOS to run 32-bit apps. Apple's transition to 64-bit technology is now complete. Starting with macOS Catalina, 32-bit apps are no longer compatible with macOS.
- MacOS Mojave will officially be the last version of Apple’s Mac operating system to support 32-bit apps. But what if you absolutely need to use a 32-bit app going forward? While it isn’t exactly the easiest solution, you can always use a virtualization program to create a virtual machine running Mojave.
- As of macOS Mojave (10.14) beta 9, macOS Mojave DOES support 32 - bit applications. When opening these applications, you will see a dialog box with a similar message from High Sierra (see below) telling you that 'This app will not work with future versions of macOS' but after clicking 'Ok' the application will open.
- MacOS 10.14 Mojave, the version of the Mac operating system before the new macOS Catalina, is the last version that supports 32-bit software. With Catalina, only 64-bit software will be supported.
- Mar 06, 2018 MacOS High Sierra is the last macOS release to support 32-bit apps “without compromise” (presumably meaning without performance degradation, and with maximum compatibility), and betas of macOS 10.13.4 are now notifying users if 32-bit apps are being run. This might suggest that 32-bit Mac apps will run through a compatibility mode like Rosetta or Classic in the near future,.
Jun 12, 2018 In news that won’t surprise attentive TidBITS readers, Apple has announced that the upcoming macOS 10.14 Mojave will be the last to support 32-bit apps. If you rely on older 32-bit apps, you probably have at least 15 months before it becomes a problem in macOS 10.15.
Apple began transitioning to 64-bit hardware and software technology for Mac over a decade ago, and all modern Macs now include powerful 64-bit processors that can run advanced 64-bit apps. These apps can access dramatically more memory, enable faster system performance, and take advantage of technologies that define today's Mac experience, such as Metal graphics acceleration.
Apple has been working with developers to transition their apps, and in 2018 Apple informed them that macOS Mojave would be the last version of macOS to run 32-bit apps.
Apple's transition to 64-bit technology is now complete. Starting with macOS Catalina, 32-bit apps are no longer compatible with macOS. If you have a 32-bit app, please check with the app developer for a 64-bit version.
Opening 32-bit apps
When you attempt to open a 32-bit app, you will see an alert that the app needs to be updated to work with this version of macOS, or that the app is not optimised for your Mac and needs to be updated.
macOS Catalina
macOS Mojave and macOS High Sierra
If you haven't upgraded to macOS Catalina, you can still open and use the app, but you should check with the app developer for a 64-bit version that also works with the latest macOS.
How to find 32-bit apps on your Mac
System Information can find 32-bit apps that are installed on your Mac:
- Choose Apple menu > About This Mac, then click the System Report button.
- Select Legacy Software in the sidebar.All legacy software is 32-bit.
- If you don't see Legacy Software in the sidebar, select Applications in the sidebar, then check the list of apps on the right. The column labeled '64-Bit (Intel)' shows 'No' for apps that are 32-bit.
When upgrading to macOS Catalina, the installer shows a list of recently used apps that are 32-bit. You can review this list before choosing whether to cancel or continue the installation:
macOS Catalina also shows a prohibitory symbol over the icon of each 32-bit app in the Finder, letting you know that the app will not open.
Macos Mojave Download For Windows
How to contact the app developer
The developer (or vendor) is the person or company that made the app.The easiest way to find contact information for an app's developer is to search the web for their name or the name of their app. Learn more about contacting third-party vendors.
To find the name of the developer:
- Select the app in the Finder.
- Choose File > Get Info from the menu bar.
- Look for copyright information in the Info window. For example, Apple is the developer of this app: