Version 6.400 lost next/previous arrows

My K9 Mail just upgraded to 6.400 and now when viewing a message, I no longer have the < and > icons to move to the next and previous message. Is there some setting to get these back?

I believe this came up in another topic here recently. My understanding is that the buttons have been replaced by a swiping gesture.

They have, and I haven’t really missed them since reading the release notes cued me so, but not everyone reads them, besides which removing features seems counterproductive to me. I think people should have both options and use whichever they prefer. For now I am not aware of a way to restore the buttons, though someone else may.

Thanks for your replies, and indeed the buttons have been replaced with swiping gestures and now that I know that, I actually like it better.