GlassFish 3.1 is Out
The biggest news with the 3.1 release is that the clustering and high-availablilty support that was missing from version 3.0 exists again. Other new features include ssh provisioning, centralized management, application versioning, better OSGI support, a retooled embedded API, and more. The commercial version, Oracle GlassFish Server, also includes the OracleGlassFish Server Control, which provides command-line client monitoring, simplified backup and restore, Oracle Access Manager integration, and a couple other neat items.
If you have the time today at 1PM eastern or tomorrow at 9AM eastern, you can also attend a What's New with GlassFish 3.1 webinar.