Note that the posted link contains differences from Struts 1.x to Struts 2. Struts 2 is significantly different from Struts 1.3.
Joined: Feb 15, 2005
As confusing as Struts versions are already, let's not make it more confusing. When someone asks the difference between Struts 1.1 and 1.2, that is not the same as asking the differences between Struts 1 and Struts 2.
Ramesh's link is indeed a great link with excellent information. Please note, though, that it explains the difference between Struts 1 and Struts 2, not the difference between Struts 1.1 and Struts 1.2 (both of which are Struts 1 versions).