Staggered versioning / thinning out versions

[JonMikelV]

For those that might still be interested in reducing backup density over time the latest canary build has initial support for a --retention-policy parameter as described here.

Maximum backup versions?

Chiming in here, since this is my code (and my spelling mistakes *cough*): Is there any further instruction for how to use this Sadly not. I thought keeping the description somewhat brief might be good, as I was afraid it might scare of users when they see a huge wall of text ^^ I tried to explain the feature and how it works in a comment in the corresponding ticket Issue 2084 (comment) I think the most important information are: the letters for seconds, minutes, hours, etc are the same …