My Note 4 came with kitkat installed two years ago. Shortly thereafter I was able to upgrade to lollipop. For the past several months now I've been ignoring the available upgrade to marshmallow because honestly neither my cell provider nor Google has any incentive to let me keep a perfectly good phone for another year or two, so I'm worried a major performance hit is the only real feature I can expect from the new version. I know I'm being slightly irrational in this concern, but can anyone confirm that the jump from Android 5 to 6 doesn't cripple phones with "old" specs (since it's targeted to the latest phones)? I'd love to update if it turns out this is not the case.