new hosts appearing between 2012-03-31_0800 and 2012-04-01_0800:
www.haxx.se                     has IPv4 80.67.6.50 has IPv6 2a00:1a28:1200:9::2 (ok)
www.westeros.org                has IPv4 173.245.60.119, 173.245.60.43 has IPv6 2400:cb00:2048:1::adf5:3c2b (ok), 2400:cb00:2048:1::adf5:3c77 (ok)

hosts disappearing between 2012-03-31_0800 and 2012-04-01_0800:
www.big.or.jp                   had IPv4 183.181.7.1 had IPv6 2001:2e8:621:0:2:1:0:1