With updates now rolling out on AT&T and T-Mobile, it's time to reflect on the LG G4's march towards Marshmallow.

It seems like the LG G4 has been updating to Android 6.0 Marshmallow for about as long as the latest version of Android has been around. The update first landed in Poland in October, and since then it's been slowly spreading throughout the world. This week, U.S. carriers AT&T, Verizon and T-Mobile updated their G4 variants to Marshmallow.

Like most LG OS updates, the top-level changes that Android 6.0 brings to the G4 are relatively few and far between. Performance is a little slicker. Some of the animation transitions have been tightened up a bit, most notably in the app switcher. These are all tiny changes that only eagle-eyed G4 owners will have noticed.

So on the surface, the phone looks and behaves just as it did on Lollipop. (We'll likely have to wait for the LG G5 to deliver any meaningful changes to LG's own software layer.) But the many under-the-hood improvements in Marshmallow are important too — like Google Now on Tap and the Doze feature that cuts down on background power consumption when the phone is idle.

One feature G4 owners will miss out on is Adoptable Storage — the ability to directly link your SD card to the internal storage as one big block of storage space. Maybe that's not too surprising though, given that it's easy to remove the G4's microSD card without pulling the battery.

As for battery life, there are mixed reports from G4 owners on the Android Central forums, with some reporting no change in longevity outside of doze mode, and others reporting a slight drop in battery performance.

So if you're using an LG G4 and have already updated to Marshmallow, we want to hear from you. Are you happy with the relatively small changes to the way the phone works, or were you hoping for more? And have you noticed any alterations or upgrades that we've missed? Shout out in the comments below, and hit up the Android Central G4 forums for more discussion.