new hosts appearing between 2012-05-07_0800 and 2012-05-08_0800:
www.michaelis.uol.com.br        has IPv4 200.147.3.199, 200.147.35.224 has IPv6 2804:49c:319:430::326 (ok)
www.topreality.sk               has IPv4 93.184.69.136 has IPv6 2a01:390:1:1::3 (ok)

hosts disappearing between 2012-05-07_0800 and 2012-05-08_0800:
www.o2.cz                       had IPv4 160.218.161.61 had IPv6 2001:41d8:1:8f20::30 
www.orzhk.org                   had IPv4 208.113.135.62 had IPv6 2607:f298:2:121::c4b:4c94 
www.techtudo.com.br             had IPv4 186.192.82.155 had IPv6 2804:294:4000:8000::5