Short version: Download Ulysses 2.1 beta. Unpack the archive, launch the app. Enter your registration data or leave everything blank and just run it in trial mode. Test. Give feedback, if you happen to stumble across bugs. (No feature requests please.)
Long version: There is no long version. Just some release notes.
Release: If all goes as planned, we’ll push Ulysses 2.1 early next week through Sparkle and also submit it to the Mac App Store for review. It’s a free update, of course.