I've noticed a small issue with my email client for quite some time now where composing a new email will have several blank lines by default.
It's not too much of an issue to simply delete them but hey, maybe no one had pointed this out before! So I filed a bug report only to get this response… basically it's not a bug, its a feature!
The Google Play beta is the beta version for the existing app (aka edge version), not the rebuilt one (which isn't released yet, except as beta)