[dns-wg] When did ns-v6.ripe.net become a CNAME?

Can anyone say when ns-v6.ripe.net became a CNAME (target ns.ripe.net), which makes it a rather bad idea to have an NS record pointing to it? We (due credit: Tony Finch) have just discovered that some strange resolving glitches were due to 0.3.6.0.1.0.0.2.ip6.arpa having such an NS record. The Janet NOC have been informed and hopefully will fix. -- Chris Thompson University of Cambridge Computing Service, Email: cet1@ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QH, Phone: +44 1223 334715 United Kingdom.