Getting here from there.
Struts 2.3 to 2.5 migration
Comparing Struts 1 and 2
How are Struts 1 and Struts 2 alike? How are they different?
Struts 1 Solutions
Various issues (and hopefully their solutions!) encountered during migrations to Struts 2.
Steps and overall strategies for migrating Struts 1 applications to Struts 2.
Development tools to help aid the migration process.
Migrating Applications to Struts 2
A three-part series by Ian Roughley (Sep 2006)
What's in store for Struts 2?
A History of Struts 2
Don Brown's summary of events
Key Changes From WebWork 2
What has been removed or changed from WebWork 2.2 to Struts 2
WebWork 2 Migration Strategies
Steps and overall strategies for migrating WebWork 2 applications to Struts 2.