If you'd like to know whether your version of MultiTrans is still receiving updates or fixes, please see the following help article:
https://gateway.sdl.com/apex/communityknowledge?articleName=000015933
If you'd like to know which versions of Windows Server and/or SQL Server are supported by MultiTrans / Flow, please see this article:
https://gateway.sdl.com/apex/communityknowledge?articleName=000015935