It would appear to be a subtle change in the encryption, rather than the keys. At the moment it is only open on the Dreambox and Dragon Cam, but I'm sure that the others will catch up.
@ Hoopster, nothing much to add to what the others have said, except that we are not a file or key site, we discuss encryption and decryption and even the use of keys and hex files as part of our general satellite theme. We manage to stay up and running consistently and at much more reasonable operating costs, because we can go anywhere for our dedicated server and choose the most suitable deal.
We exist for the general hobbyist, not for the key hunter, there are a plethora of sites they can go to and in many cases be bombarded by popups and mature content ads. We prefer the more gentle approach, with no popups, a fast site and a pleasant atmosphere.