I wasn't aware that the ISC is working on a new high-performance DHCP server, Kea. (Let's hope it'll meet a better fate than the BIND 10 effort. )
The Kea web page also has a short table with a comparison to the classic ISC dhcpd.
ISC wrote:
Kea is designed to be easily extensible through an applications API. This API can be called at multiple places during the DHCP processing, to consult or update enterprise provisioning systems, for example. Kea DHCP leases may be stored in a memory file database, or in a MySQL or Postgres database.
The Kea web page also has a short table with a comparison to the classic ISC dhcpd.
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