All of the bots I have killed as of late have had no explosion, or perhaps it has been lessened on the smaller bots? It looked more like they imploded than exploded.

mcnut: you getting any sound anomalies or jerking as if it might be lag?

It didn't seem to be lag, and I was within the blast radius more than once...

Yup, the Orens seem to implode now instead of explode. Is this a bug or a feature?