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@@ -3905,6 +3905,9 @@ class Archiver:
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The prune command prunes a repository by deleting all archives not matching
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any of the specified retention options. This command is normally used by
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automated backup scripts wanting to keep a certain number of historic backups.
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+ This retention policy is commonly referred to as
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+ `GFS <https://en.wikipedia.org/wiki/Backup_rotation_scheme#Grandfather-father-son>`_
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+ (Grandfather-father-son) backup rotation scheme.
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Also, prune automatically removes checkpoint archives (incomplete archives left
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behind by interrupted backup runs) except if the checkpoint is the latest
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TW