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API changes were made to add LLDP packet parsing support. GetType() was renamed to GetEncapsulated() to avoid name confusion with the .NET built-in Type.GetType() method. The ARPPacket constructor exception was fixed. IPv4Packet.Id now uses the proper number of bytes for the field to avoid overwriting the next field. ICMPv6 support was added. TcpPacket, IpPacket, and similar automatically update their checksums to simplify things for the user.