https://sourceforge.net/p/enigmail/source/ci/382c7dc3cc84a0fa9648ad5f7054e725d32eda22/log/?path=
In fact, for novice users (or such without OpenPGP setup), the new p≡p scheme will be used (as "junior mode") to automatically create keys and distribute them to the communication partners: https://twitter.com/pEpCouncil/status/792233350463447040
p≡p has a broad, cross-platform approach as how to automatically encrypt all "written digital communications".
Furtherly, its technologic core (p≡p engine) underwent a code audit: https://pep.foundation/blog/press-release--pep-releases-first-code-audit-of-the-pep-engine/index.html
A beta of Enigmail/p≡p will be launched at Mozilla Festival in London, this Sun: https://twitter.com/pEpCouncil/status/791575091343687680
Good video talks explaining what p≡p actually is, were given at the GNU Hacker Meeting (GHM) in Rennes, France: https://gnunet.org/ghm2016