The brand new macOS Catalina is now available. It is **not** a good idea to upgrade with the first group of users, this will give problems. Up till now, we received reports about Adobe software not working, F-Secure Client Security not working, MestreNova not working, EndNote needing an upgrade to 9.3.1 or higher, Science VPNsec only working after reinstalling VPN. For more information what could go wrong, see Hold Off Catalina and Wait on Catalina....