Curious to see what the responses on this topic will be. I'm noticing significantly improved battery life over the previous version so far (and no more "Cannot get mail" errors). I'm getting about 1.5 - 2 hours more battery life on my Air 2. My 5C always had great battery performance until 8.3, and now it seems to be back to normal again with 8.4.
How about you?
How about you?