32 Bit Applications on Catalina

Apple released macOS 10.15 Catalina last week.  It is recommended not to upgrade to Catalina right away due to some fundamental changes in this release.  UW IT recommends waiting until the 10.15.2 update before upgrading and confirming that your applications will run on Catalina.    


By design, 32 bit applications no longer run in 10.15.  Common applications that will not run in Catalina or experience issues running in Catalina include but are not limited to:

1.)    Adobe Acrobat Pro 9.5.5, Illustrator CS5, InDesign CS5 and CS6, and Photoshop CS5

2.)    Apple Aperture

3.)    Microsoft Office (Excel, Powerpoint, Outlook and Word) 2011

4.)    iWork ’09 (Older versions of Pages, Keynote, & Numbers)

5.)    Bomgar

6.)    Webroot

7.)    Final Cut Pro 10.3.4

8.)    Motion 5.3.2

9.)    Compressor 4.3.2

10.) Logic Pro X 10.3.1

11.) MainStage 3.3


To find 32-bit applications on your mac please do the following: 


1.)    Choose Apple menu > About this mac, then click the System Report button.

2.)    Select Legacy Software in the sidebar.  All legacy software is 32 bit. 

3.)    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 coulmn labeled 64 bit (Intel) shows “no” for any apps that are 32 bit. 


When upgrading to macOS Catalina, the installer will show a list of recently used applications that are 32 bit.  You can review this list before choosing whether to cancel or continue with the installation.   


If you are still running 32 bit applications, you should plan on budgeting for 64 bit replacements prior to upgrading to Catalina. 


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Article ID: 89718
Fri 10/18/19 3:48 PM
Fri 10/18/19 4:00 PM