You knew it was coming. Besides bug fixes and some improvements, someone's getting nerfed. And the race getting nerfed was the Terrans.
Blizzard released the latest patch
for StarCraft II
two days ago and if you go through the list of changes, the one affected most it seems would be the Terrans. If you're partial to the Terrans, you might have to change your strategy a little bit based on the items that had build times increased and damage done decreased.
The Zerg and the Protoss are jumping for joy right now.