Since the JBT EA .target file already contains all the IUs which are considered early access (and their dependencies, which are sometimes also EA, like Tern) we can generate the list of EA features from that .target file, and maintain an ongoing [min,max] version range of what's considered early access.

Currently the properties file looks like this:

https://github.com/mickaelistria/jbosstools-central/blob/JBIDE-17808/central/plugins/org.jboss.tools.central/jbtearlyaccess.properties