Just got this message when I booted the old version
"Important notice for ScanSnap software users
Summary
This is an important notice about the upcoming macOS (Catalina).
***For users of iX500, iX100, SV600, S1300i, S1100i, S1100***
The ScanSnap software you are using is not available on the macOS 10.15 Catalina. To keep using your ScanSnap on the macOS, use ScanSnap Home.
Details
No further updates will be provided to the ScanSnap software you are using.
The ScanSnap software is not available on the macOS as it does not support any 32-bit applications.
If you want to keep using your ScanSnap after updated your OS, ScanSnap Home, the successor to this software, is required.
For details on ScanSnap Home, refer to below.
[
www.fujitsu.com] Window
***For users of S1500, S1500M, S1300***
The ScanSnap software you are using is not available on the macOS 10.15 Catalina.
We would suggest using your ScanSnap with the current version of macOS.
Or upgrading your ScanSnap to a recent model.
Details
No further updates will be provided to the ScanSnap software you are using.
The ScanSnap software is not available on the macOS as it does not support any 32-bit applications.
If you will use macOS 10.13 or earlier, you can keep using ScanSnap S1500,S1500M, and S1300.
When you use macOS 10.14 or later, please consider purchasing a ScanSnap that is currently available."