If you are new to Thorntail, this is the best place to start. Learn what Thorntail is and how to use it to build your first Java EE or MicroProfile microservice.
The documentation of the current development, 2.x, on master:
The documentation of 4.x branch (discontinued):
The documentation for previous releases:
2.6.0.Final
2.5.0.Final
2.4.0.Final
2.3.0.Final
2.2.1.Final
2.2.0.Final
2.1.0.Final
2.0.0.Final
2018.5.0