new hosts appearing between 2012-04-19_0800 and 2012-04-20_0800:
winportal.com                   has IPv4 195.78.229.148 has IPv6 2a00:1d70:c01c::229:148 (ok)
www.agh.edu.pl                  has IPv4 149.156.96.2 has IPv6 2001:6d8:10:1060::6002 (ok)
www.cht.com.tw                  has IPv4 202.39.225.136 has IPv6 2001:b000:180:3::136 (ok)
www.cinema.uol.com.br           has IPv4 200.147.35.224, 200.147.3.199 has IPv6 2804:49c:319:430::326 (ok)
www.freemail.hu                 has IPv4 195.228.245.1 has IPv6 2001:4c48:2:3f::1b (ok)
www.linode.com                  has IPv4 72.14.191.202, 69.164.200.202, 72.14.180.202 has IPv6 2600:3c00::12 (ok)
www.meo.pt                      has IPv4 83.240.175.138 has IPv6 2a02:818:2021:6240:83:240:175:138 (ok)
www.michaelis.uol.com.br        has IPv4 200.147.35.224, 200.147.3.199 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 2012-04-19_0800 and 2012-04-20_0800:
www.boards.ie                   had IPv4 89.234.66.108, 89.234.66.107 had IPv6 2a01:258:f000:3::108 , 2a01:258:f000:3::107 
www.liriklaguindonesia.net      had IPv4 199.27.134.19, 199.27.135.84 had IPv6 2400:cb00:2048:1::c71b:8754 , 2400:cb00:2048:1::c71b:8613 
www.o2.cz                       had IPv4 160.218.161.61 had IPv6 2001:41d8:1:8f20::30 
www.sch.gr                      had IPv4 194.63.235.170 had IPv6 2001:648:2302:fd00:203:baff:fed2:cd07 
www.torrage.com                 had IPv4 192.121.86.94 had IPv6 2a00:1a28:1151:0:20c:29ff:feeb:294 
www.winportal.com               had IPv4 195.78.229.148 had IPv6 2a00:1d70:c01c::229:148