Patch 3.1 – we’ve been waiting for it.

It's definitely a good thing that the game no longer ignores summoned creatures. Previously, when playing as Inferno, you could create a bottleneck for melee attackers (especially large ones) by blocking the path with summoned stacks. Now, the AI has shifted to the other extreme, and this can be exploited again...

Also, in version 3.1, you can't apply the fire trap and crystal enchantments to ranger arrows... that's disappointing!