Home Story Cup 18 was the first notable tournament played with patch 4.7.1, so it provides a good overview of how pro players approach the new patch. I will discuss some observations in the TvP match up.
The last Hellbat patch has changed the dynamics of the opening and early mid game of TvZ. Since then, there has been various forms of Hellbat build. But none of these builds is as aggressive as the one I am going to discuss in this post.