We had a Problem with JBoss Seam 2.2.1.CR1 Logger. We were not able to log with parameters. (This is a known bug: https://jira.jboss.org/browse/JBSEAM-4606 )
I was looking for a tutorial which covers upgrading Seam, but I did not find any. So this is my solution how to upgrade from Seam 2.2.1.CR1 to Seam 2.2.1.CR2:
It is kind of a trivial job, because in normal case you just have to replace libraries. Here is a step to step tutorial: