arch vs darcs

Hmm... very interesting indeed. DARCS vs arch: this is a post on the darcs-users mailing list which lists one case where darcs shines over arch. Basically, it allows you to establish (or rather, itself establishes) relationships between patches, so that if you retrieve patch-11 which is an enhancement over patch-8, it would retrieve both, patch-8 as well as patch-11. Pretty cool feature anyways, should be implemented in any VCS.