A number of things happened this last week, including the start of testing for Halo on PC, a small set of patches being made available, and Edge Dev coming to Windows 7, 8, and 8.1 Catch up below.
Edge 77 RSS
Yesterday, Microsoft had announced that Edge Dev 77 was going to be available, but the update didn't ship until today. Naturally, the changelog is now finally published for the new build.