Hi and tnxs for reading. Other posts are talking about iPhone6 and 6 Plus screenshot size for iTunes Connect iPhone 6: 750 x 1334 pixels for hi-res portrait 1334 x 750 pixels f
Screenshots for iPhone 6 and iPhone 6 Plus must be uploaded WITH status bar, e.g.:
App store screenshots sizes for all devices
The Apple Dev Guide hasn't been updated for iPhone 6 and 6 Plus, you are right.
Remember the iPhone 6 Plus screenshot dimensions differ slightly from the real resolution. See:
http://www.paintcodeapp.com/news/iphone-6-screens-demystified
(downsampling marked red in the webpage, no need to download the guide to see it).
My understanding at this point is that you have to photoshop the status bar out. I looked at Uber's app, and they had the status bar in there, with the time stamp and wifi bar.
So I guess its all round confusion.
Just ran into the same problem: I removed the status bar on all my screenshots (as I used to do it for the older iPhone models) only to learn that this does not work anymore for iPhone 6.
I looked at the screenshots of Apple's own apps (e. g. Pages). They do leave the status bar in, but it doesn't show a carrier and times is set to 9:41. This can be done by connecting the iPhone to a Mac and using it as camera input through Quicktime on Yosemite (like for app-previews).