I was wondering if there were any plans to migrate encrypted backups to the GPL version as other features have migrated from pro to GPL. If this isn't part of the plans would it be possible to implement a stripped down version in the GPL version? Maybe just one key pair or only supporting encryption on a backup of all domains/features? Something for people just running Virtualmin on personal systems to manage a couple domains.
I think we should be encouraging all users to back up, especially with the availably of low-cost on demand storage from any number of openstack or s3 like providers, but these kinds of "public" storage IMHO demand encryption in the same way the community is pushing encrypted transmission like with lets encrypt we should be pushing for encrypted storage as well.
As a side question does incremental backup work with encryption and does it require keeping a copy of the full backups on the local server to compare files or is the system smart enough to compare the files in a different way?