Added the following to the release notes:
The main thrust of the GlassFish Server Open Source Edition 4.0 release is to provide an application server for developers to explore and begin exploiting the new and updated technologies in the Java EE 7 platform. Thus, the following features of GlassFish Server were not a focus of this release:
- Clusters and standalone instances
- High availability features
- Embedded Server
These features are included in the release, but they may not function properly with some of the new features added in support of the Java EE 7 platform.