We still have a PMI-based website , CBI-based build , an architectural overview , the contributor guide , committer FAQ , and a number of exemplary implementations including a basic Xtext-based example and a more advanced Java model example (Handly Examples).
All existing artifacts are kept up-to-date. The architectural overview reflects the still current (at the time of this writing) 0.7 version and will be updated once Handly 0.8 is released.
Also available is a step-by-step guide to getting started with Handly  (hosted on GitHub and made available under the EPL v1.0), which has enjoyed some encouraging feedback from early adopters. Based on the still current (at the time of this writing) 0.7 version, it will be updated to take advantage of Handly 0.8 immediately after the release.
We will also provide a migration guide for current adopters in the time leading to this release.