JBOSS 5.1 Upgrade - Will JGroups from JBOSS 4.0.5 Talk?

[dmurphy2]

Hi - we are about to upgrade our production cluster from JBOSS AS 4.0.5 to JBOSS AS 5.1. In the app we use code that uses the JGroups API to share data between cluster nodes.

Question: Will the JGroups version bundled with JBOSS 4.0.5 work with the JGroups version bundled with JBOSS AS 5.1?

thx
David

[dmurphy2]

BTW - this requirement is a very nice to have for us since it would allow us to deploy our JBOSS application across our cluster in a rolling deployment. e.g. we would know that the new nodes still running JBOSS 4 could communicate with the new nodes running JBOSS 5 until the rolling deployment completes on all nodes.