If you happen to own the AT&T variant of the LG G4, model H810, you'll definitely want to check for available updates as Marshmallow is now rolling out to the handset. It's available over-the-air so it should simply be a case of checking for updates in the Settings and fetching a beverage.

AT&T has a support page published for the update, noting that the rollout commenced on February 8. Already have the update applied to your LG G4 on AT&T? Head to our forum to discuss the rollout with other owners.

Source: AT&T