I like the text part of the new logo. Just making "Blender" capitalized makes a world of difference, and the "Stack Exchange" part was integrated really well.
However, I'm not as much of a fan of the double speech bubble icon. I like the idea, but there's something iffy about the way that the two speech-bubble-points visually interact with each other.
I can't place my finger on it exactly, but the bottom center part of the new logo strikes me as "weird"/"off" somehow for some reason.
