Michal Krause wrote wmcliphist

Daniel Richard G. made icon set used from version 0.5

Michael Beattie wrote new exec actions handling (introduced in version 0.6)

Vadim O. Ustiansky wrote patch allowing wmcliphist window of size 1px and
second patch allowing to confirm actions by keyboard.

Samuli Suominen created patches to make wmcliphist compatble with GTK+ 2.x and
higher

Alexey Vyskubov wrote foodock library