thank you very much for your reply!
– configured a brand new box with ZS3.0.2
– exported from v. 1beta15 a backup (without logs)
– imported backup into the new one
and I verified *all* settings were keeped (also VLANs).
I’ll do a onsite test during next evenings, after working time, replacing the 1beta15 box with the new one, but I do not expect any problem.