How often can I get an update of GlassFish?
Updated builds for GlassFish will be posted every night to glassfish.dev.java.net. These code pushes have gone through very basic testing to ensure they will build and execute but have not been tested as thoroughly as our production releases. Additionally, you have read access to the same CVS tree that the developers do – so you always see the latest versions of the code there. Occasionally, typically weekly or so, we will push a “promoted” build which has been more thoroughly tested and will contain many more documented features than the regular nightly builds. A supported Beta and FCS version of the Sun Java System Application Server 9.0 which is built on GlassFish.