DECEMBER 2019 MACWORLD 13Apple actually started to warn people
about the change with macOS 10.13 High
Sierra. If you launch a 32-bit app in High
Sierra, an alert pops up to tell you that
your app needs to be updated. The alert
appears only once in High Sierra, and in
Mojave, it appears every 30 days.
If you can’t recall whether an app
needs to be upgraded or not, there are a
couple of ways to find out besides the
launch alert. Here’s how.
USE GO64 TO FIND 32-BIT
APPS ON YOUR MAC
St. Claire Software has a teriffic app called
Go64 (go.macworld.com/64go) (free,
donations accepted) that scans the
software on your Mac and tells you
whether each app is 64-bit or not. Go64 is
fast and it also provides web links to the
app developer’s website, so you can go
see if the developer has an update. Learn
more about Go64 (go.macworld.com/g64r).FIND 32-BIT APPS ON YOUR
MAC THROUGH SYSTEM
REPORT- In the Finder, click on the Apple menu
and select About This Mac.
2. In the Overview section, click on the
System Report button.
3. In the left column of the System
Report, scroll down to the Software
section. Then select Applications.
Go64 provides a more detailed look at which apps need updated or deleted before installing
macOS Catalina.