WavPack 4.80.0 was released on 2016-03-28.
commit c500a7b3f422e1c9f60fa4e99373045718d0df97 Author: Alexis Ballier <aballier@gentoo.org> Date: Sat Apr 30 18:12:40 2016 +0200 media-sound/wavpack: bump to 4.80.0, bug #580818 by Jens Rex thx