Things to do, not in any particular order...
+- Dynamic DNS support
+
+- SNMP support
+
+- Asynchronous DNS support (look up names while serving other requests)
+
+- Authentication heirarchies (particularly by MAC address or by DHCP
+ Authentication Protocol key).
+
+- Authentication protocol
+
+- Server-to-server protocol
+
- Perl scripts to convert from other DHCP and BOOTP servers' config
files to the ISC DHCPD format.