dhclient - Remove wrong processing of option 33 (static routes). - We are incorrectly processing option 33 (static route), treating is as a host route rather than a classful network route. Too much trouble to fix such an obsolete feature, so ignore option 33 info. Taken-from: OpenBSD
dhclient - Drop medium/alias useless utilization. - Dump some useless calls to dhclient-script. i.e. MEDIUM, PREINIT, ARPSEND, ARPCHECK. Drop support for 'media', 'medium' and 'alias' specifications in dhclient.conf. - Old leases still parse but these options now have no effect. - Be more polite and decline all offers we don't accept. - Fix a IMSG length check. - Many expressions of support at various bars. Taken-from: OpenBSD
dhclient - Fix interval handling. - Start at initial_interval instead of exponentially backed off initial_interval. - Don't hallucinate that we can send ARP packets without waiting. - Don't claim to be waiting for ARP packets when not doing so. - Correctly detect expiry of selecting period. - Speeds up negotiations. Taken-from: OpenBSD