

Sooner or later, I’d have to upgrade the OS. I had two choices: I could hold off on upgrading the operating system (for a while), or I could buy a new scanner. Fujitsu no longer sells this model and has no plans to release 64-bit drivers. This device is an important part of my workflow I use it every other week to digitize most of my paper documents and correspondence. Without this driver, the scanner is useless - even though the hardware is perfectly functional. (Here’s a way to learn which apps won’t work: under the Apple menu, go to About this Mac > System Report… > Legacy Software.) I knew this driver was incompatible because every time I launched it (under Mojave, the previous version of macOS), I’d get a warning saying that the app would not run in the future. That’s why I waited longer than usual before upgrading to Catalina: there was one application in my system that was 32-bits, the driver for my Fujitsu ScanSnap S300M scanner.

While most major software in the system is now 64-bits, there are still some stragglers - especially legacy apps and drivers that haven’t been (and likely won’t be) upgraded. The trouble stems from the fact that Catalina doesn’t run 32-bit applications. That hasn’t been the case with the newest version, Catalina. I like having access to the latest features, and significant macOS release upgrades are generally trouble-free. When a new version of macOS comes out, I usually upgrade my computer relatively soon.
