We typically don't do releases this early in the dev cycle for a WildFly major, but this time we wanted to let the WildFly community have a look at the new 'WildFly Preview' flavor of WildFly that we're adding. We’re using WildFly Preview to give our community a tech preview look at things we see coming down the road in our main WildFly distribution. Right now this is mostly about what we are doing with Jakarta EE 9, where we've made a lot of progress this last month.
Thanks so much to everyone in the WildFly community who have been working on EE 9, both for WildFly and in general. I'd like to specially thank Scott Marlow, Richard Opalka, Jean-Francois Denise and Darran Lofthouse for their hard work in pulling WildFly Preview together.