Halo services on Xbox 360 will shut down in December 2021, Microsoft and 343 Industries have confirmed.
A Halo Waypoint post reads:
Halo titles on Xbox 360 have been delisted, and any 360 DLC can still be “acquired at no cost”. 343 Industries also confirmed that private matchmaking games will...
Also added followers/following widget to user profiles. Also you'll notice a levelling bar under a users post bit but that's currently still in the works.