Enterprise Server v3 is available as part of the Java EE 6 SDK. The following versions of the Java EE 6 SDK are available:
Java EE 6 SDK. This version includes Sun GlassFish Enterprise Server v3. This version is designed for developers who require the full set of Java EE APIs for enterprise application development.
Java EE 6 Web Profile SDK. This version includes Sun GlassFish Enterprise Server v3 Web Profile. This version contains web technologies that are part of the Full Platform Profile and is designed for developers who do not require the full set of Java EE APIs.
Java EE 6 SDK distributions are available from the Java EE 6 SDK downloads page.