Since Android Version 6.0 (also known as Android M or Marshmallow) has been out for about two months now, it has reached only a small percentage of devices. Google always ensures that their latest version will hit its Nexus series first, and it has. However, there are a lot of Android smartphone users who are longing for the latest, and this includes LG device users. This is what is known about Android M Version 6.0 Marshmallow Release Date for LG G4, G3, G2, and G Flex 2 on carriers like Verizon, Sprint, T-Mobile, US Cellular, and AT&T.
As far as the new rollout of Android 6.0 is concerned, LG is probably doing the best job of making sure they are getting it to their users as soon as possible. LG issued a press release about a month ago promising that their users would be the first to have it, and then begun their rollouts in Poland. They hit a snag within the rollout, but it looks like they effectively ironed out whatever problem was happening there.
In fact, Tech Radar reports that the LG G4, the company's latest flagship phone, is being updated to Marshmallow in Europe, in countries like the United Kingdom, Poland, Germany, Portugal, Spain, Romania, Austria, Switzerland, Hungary, Croatia, and Turkey.
Given that it has been doing so well in Europe, it shouldn't be long before it makes its way to the United States. A recent report from Pocket-Lint predicts that the upgrade could hit LG G4 handsets sometime in January or February of 2016.
As for the LG G3, it seems likely that it will be receiving the Android 6.0 upgrade, bypassing Android 5.1 entirely. Know Your Mobile reports that the upgrade for the G3 will be arriving soon, as the open source code for the LG G3 Marshmallow update has been published online. Perhaps it will roll out in Europe before coming to the United States.
It is probable that the LG G Flex 2, the LG G4c and other recent LG phones including the LG G2 will be receiving their 6.0 shift.
Also, once the rollout happens, it is a matter of it going through the carrier, which can cause even more delays. In America, that depends on what Verizon, Sprint, T-Mobile, US Cellular, and AT&T want to do with the fresh new version of Android. There is a report saying that Sprint has started bringing the Marshmallow update to the LG G4, according to GSMArena. This is an excellent sign that the other networks will follow.