Panda Adaptive Defense blocked it pending their offline security check (usually about 24hours). That might be simply because they have not seen it before; I use some other, fairly esoteric, software that usually has to go through offline checking when there is a new update. I don't thonk Panda blocked previous updates.
I can live with the delay for the security it gives. I could override if it was an urgent update (never have so far).
