A slightly newer version, 1.24.5, was uploaded:

http://server.conitec.net/down/Zorro_setup.exe

This version addresses a problem reported by a user when switching Z3 from 1.22 to 1.24. Under some circumstances the price history of a asset could not be properly downloaded, causing permanent repeated attempts to download that asset. Also, trades using that asset could not be continued.

If you have already switched your trading systems to version 1.24 without problem, you can keep them running and won't need the new version. Otherwise it's recommended to download 1.24.5.