We’ve always recommended that: “After upgrade, you should run a full backup immediately as changes in this release invalidate all old backups.” It’s still good advice to have a fresh full, but there’s always the infrequent need to get data from an older minor version backup without throwing up a temporary machine. Well, with 5.0.x we aimed to make restores compatible across patch releases
(i.e. an older 5.0.x backup, not a prior 4.5.x backup - major version restore is this RFE
). There was a bug about zmrestore not handling database schema changes, but that’s fixed in 5.0.5
and later - so backwards compatibility for restore is now theoretically possible. And we’re also looking to put icing on the cake by adding a conversion tool
to upgrade backups themselves to allow restore on later ZCS versions.