Here's a list of the most noteworthy things in the RAP 3.12 M3 milestone build which is available for download since February 28, 2020.
This list shows all bugs that have been fixed for this milestone build.
The above features are just the ones that are new since the last milestone build. Summaries for earlier builds:
To assist you with the migration from RAP 2.x (or 1.x) to 3.0, we provide a migration guide.