Apple iPhone 6 (Plus) and iPhone 6S (Plus) both models have good performance hardware than earlier iPhone 5S. As we have seen Will iPhone 5S get iOS 12 update? Here I described iPhone 6 and iPhone 6S users would get iOS 12 updates of September 2018.
Before getting started this thread, we should see on the hardware of iPhone 6 and iPhone 6S. Though iOS 12 will be the most likely the last version of the iPhone 6 and iPhone 6 Plus.
Get Answer to Question: Will iPhone 6/ 6 Plus Get iOS 12 Update?
Now we will look at the history of iOS and iPhone releases, we will guess from that only. I’m taking an example of iPhone 4S; it was launched in 2011 with the iOS 5 version. Let me remind you the latest version, which we all are using, is iOS 11.3. The last update given by Apple to iPhone 4S was iOS 9, it is clear from the scenario that iPhone 4S has survived with iOS 5 to iOS 9.
So from the above discussion now we can guess that iPhone 6/6 Plus will get iOS 12 or not. iPhone 6/6 Plus were pre-loaded with iOS 8 when launched in 2014. The latest version which we are using now in iPhone 6/6S is iOS 11.3, and if we compare with the history of iPhone 4S updates, then iPhone 6/6 Plus will receive iOS 12 and probably it will be the last update for iPhone 6/6 plus users.
However, it may be the strategy of Apple that they are not using supportable and heavy hardware that can easily support the higher versions of iOS. It is clear that Apple wants to increase sales volume in future and so they aren’t giving updates to old iPhone’s. Recently the incident happened with iPhone’s battery; I assume you all are aware of that. They themselves confirmed why the battery performance is degrading day-by-day.
Think positive and wait for the iOS 12, you will definitely receive this update on iPhone 6/6 Plus.