Required by libpng 1.4 stabilization. Up to you to decide how long you want to wait on this, full 30 days, or not.
+1 from me, I am using it even with libpng-1.2 system without problems since pushed in the tree (but I don't have time just now for stabilizing)
(In reply to comment #1) > +1 from me, I am using it even with libpng-1.2 system without problems since > pushed in the tree It's only required to be same time for 2 packages I know of: wine, and snes9x
amd64 stable