If you look at cvsweb you can find this information.
Kind regards, Tom Tim Stewart wrote:
Hello all, Does anyone know which version of ISC DHCP that OpenBSD 4.2 uses for dhcpd(8)? I wasn't able to find any clue on the webpage or associated documentation. It feels a lot like a 2.x release based on the options available, but I just want to make sure. Thanks.