"It wasn't by any means an easy decision for me to move, " he said, " because I'm a Munsterman and always will be.
But I feel I need to be playing as often as possible at the highest level I possibly can and after discussion with Rob (Penney) and Garrett Fitzgerald, we agreed that this move would benefit that ambition.
" I am grateful for their support and encouragement and though I intend applying myself fully to Newcastle Falcons I will harbour thoughts of returning to Munster at some stage in the future if the opportunity arises."
Munster coach Penney said, "Given the composition Munster squad currently, we understand Danny's reasons for looking to play elsewhere.
"Danny has been a very valued member of the Munster squad and contributed a great deal during his time here. We collectively believe that it's in his own best interests to move to Newcastle Falcons where he can further develop his talent. He leaves with our very best wishes and we don't rule out the possibility of him donning the Munster red in the future."