Unreal Engine 4.7 Released!

Hey guys, Light build times are incredibly slow for me now. I started up a small scene which is basically floor + ceiling mesh, walls, and 1 point light. It is currently stuck on 5% for 15 minutes, and earlier had it go to 96% after around 30-40 mins but did not finish.

Previously on 4.6 and Previews, a simple scene would build within a minute reliably. Anyone else experiencing ??