The OpenJFX project maintains 2 main development repositories. We utilize the "Branching with Clones" method as described in A Guide to Branching in Mercurial by Steve Losh. The "master" repo is the one from which each weekly promoted build is made. You can think of it as the "golden master". The master repository must always be buildable. We never work directly against master. Instead, developers push their fixes into the "-dev" repository.
At present we We have one "mainline" development repository, the "10jfx-dev" repository. The URL for this repo is listed here:
Naming / History
The following is only for historical interest. There is no longer a separate OpenJFX release. As of JDK 8, we follow the JDK release numbers precisely.