http://www.newsweek.com/halo-master-chief-collection-september-update-patch-notes-bug-fixes-1132193

Halo: Master Chief Collection continues to be a work in progress, and the September update includes many bug fixes and other cleanup. Unfortunately, there isn’t much new content this time around. The patch is available to download now.

The patch notes for Halo: Master Chief Collection's September Update are out now 343 Industries