In reply to Rob.

Yes, it was already available, but it's been revamped and that's why it's touted as a new feature more or less versus a small enhancement. I understand the feeling that 4.1 is more incremental in terms of updates but it's an improvement none the less.

I'm looking forward to 4.2 but with a look at the Feature Plugins list, I don't see anything that will be ready to be merged in the 4.2 dev cycle. https://make.wordpress.org/core/features-as-plugins/ Unfortunately, Front End Editor development is on hold.