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MacOS Catalina kills 32-bit apps. This is what that means for you



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Make sure you check which apps do not work before you upgrade to MacOS Catalina.


Sarah Tew / CNET

MacOS Catalina is here and with the update comes the transition from 32-bit apps to 64-bit apps. In general, this is a good thing because it means that apps will work faster and have access to more memory. The switch to exclusively using 64-bit apps in MacOS Catalina has been in the making for years and Apple is helping developers transfer their 32-bit apps to the 64-bit format. As part of the transition, Apple last year began making all apps in the App Store mandatory to use the 64-bit format.

If you update your apps regularly or only download from the App Store, it will probably be fine. But if you hold an old favorite that the developer does not want to update – such as Microsoft Office 11 for Mac – you have to decide if you want to go to Catalina and lose access to the app or the update and keep using the old software.

Although you could pass Catalina, we recommend that you update your operating system to stay informed of Apple & # 39; s security patches so that you do not lose any important privacy features.

Before you go to the new MacOS, you can check which of your apps will not reach Catalina as follows.

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Apple

How to check for 32-bit apps on your system

1. Click the Apple icon in the upper left corner of your screen.

2. Select About this Mac .

3. Click on System Report .

4. Scroll down to the Software and click Applications .

5. On the right you see a list of apps and a column with the label 64-Bit (Intel) . If one of those apps has a No in that column, it means they are not 64-bit apps, so you must update them or find a replacement before you get the MacOS Catalina update.

Need more info? Here is how to check if your Mac will work with Apple's MacOS Catalina update this fall.

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Originally published earlier this month. Updated to remove an incorrect reference about the number of apps that are not compatible with MacOS Catalina.


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