LG G4 owners on AT&T and One M9 owners on Sprint should see the update to Android 6.0 this week, as detailed by both carriers. For the G4, the update is labeled as software version H81020n, weighing nearly 1GB in file size. For the One M9, Sprint labels the current version as 3.41.651.4.
Regardless of the device, Marshmallow should bring many exciting features for Android owners, such as Doze, comprehensive app permissions, Now on Tap, App Standby, Do Not Disturb settings, and much more.
Both updates should appear as OTA updates this week, but if you do not receive a notification, you can attempt to begin the process by checking for an update through your settings menu.
Go grab those updates.