The latest release of Oracle Fusion Middleware, to include WebLogic Server 10.3.5 is available for download here:
http://www.oracle.com/technetwork/middleware/fusion-middleware/downloads/index.html
For more information on this release please see Oracle Support article 1316076.1
****Note: This release of WebLogic fixes the multicast issue with servers configured for both IPv4 and IPv6 as posted in my previous blog.
Chuck Speaks
Oracle Platform Technology Solutions
http://twitter.com/ChuckAtOracle