Today was the release of SailFin v2 (download, home, wiki) and its companion Sun GlassFish Communications Server 2.0 (download, home). SailFin v2 is a big release; it leverages GlassFish v2.1.1 (more tomorrow) and adds a number of features including high availability, rolling upgrade, flexible network topology, better overload protection, Diameter support, improved diagnosability, Java based DCR files for the load balancer, and more. I can't cover SailFin v2 properly but I'll collect some of the relevant links so you can follow them up.  Start with Binod's overview: SailFin v2 Released! and move from there:

Some of the major changes are:

• A new replica selection algorithm that improves scalability by easing load distribution after failure.
• Enhancements to the Converged Load Balancer to support writing DCR rules in Java.
• The ability to do rolling upgrades leverages session replication; see this example.
• Improved use of multihoming features for more flexible deployments. See Ramesh's writeup.
• Diameter support in Sun's for-fee AddOn; see details in Venu's many posts, including [1] and [2].
• Improved load protection.  See Robert's one pager and Sankar's work on JMX Notification.

As part of the release, the team has posted a number of new entries, including:

• Next is what? (Prasad)
• Subscribing to user state using Sun Diameter Sh API (Venu)
• Setup and Configure Diameter on SailFin (Naman Mehta)
• Diameter Administration on SailFIn 2.0 (Yamini KB)
• SailFin v2 Released (Srikanth Anandal)
• CLB Enhancements in SailFin 2.0 (Kshitiz Saxena)
• Overload Protection in SailFin: What's new in 2.0 (Rampsarathy)
• Tips and Tricks of SailFin HA (Bhavani Shankar)
• Multihoming in SailFin. (Ramesh)

• TA entries tagged SailFin,
• Prasad's earlier roundup: "SailFin 2.0 is Around the Corner!"
• Sreeram's notes on SailFin amazon images.
• How to write Conference App in 15 lines of nicely formatted code!

Finally, a list for PR/Press reports:

• Sun Communications Server Speaks VoIP (The H Open Source)
• Barron's, BusinesWire.

Note - GlassFish v2.1.1 is also available from Sun's Download Center and from the Community Site. More on that release tomorrow. And the OpenMQ 4.4 (and 4.4.1 RC1) are available from here.