2.0.0 - DNSMessage is now monomorphic - RDATA is now monomorphic - Removed traversal instance for DNSMessage - EDNS0 encoding/decoding is now supported - Removed dnsMapWithType and dnsTraverseWithType functions - responseA and responseAAAA now take lists of IP addresses as their arguments - DNSHeader type no longer has qdCount, anCount, nsCount, and arCount fields