It's been a while and has been announced a while ago but here is new release of 
ddclient. There are some important changes and some documentation is modified.
A detailed overview can be found in ChangeLog but here's a quick overview:

	* adding support by ChangeIP - patch send by Michele Giorato
	* sha-1 patch send by pirast to allow Digest::SHA
	* allow reuse of use - patch send by Rodrigo Araujo
	* preventing deep sleep - see [bugs:#46]
	* Fallback to iproute if ifconfig doesn't work send by Maccied Grela