Suse security updates has been released for Appliance 5.x.
There will be not security updates for Appliance 4x because 4.x runs on top of sles 12 sp3 and SUSE not longer provides security updates for this version.
To keep current with security updates, you need to upgrade to iPrint Appliance 5.x
Normal opentext (Microfocus) patches will still be provided for both versions, 4.x and 5.x
Thanks
Gonzalo