Mark Nottingham wrote:
James Holderness has mentioned an implementation
Snarfer added support for feed history a while back, so it doesn't recognise the new archive link relations that were added in recent versions. We probably will consider supporting them in a future release if there is significant adoption on the server side, but so far most of the major implementations I've encountered have been using one of the older variations, so we haven't had any incentive to change things yet.
Regards James