As I was starting a new project I realised that struts2-sitemesh-plugin uses sitemesh 2 and that sitemesh 3 is already available.
I didn't find any discussion on this topic, but are there any plans to update the plugin in a future release? To be honest I've always balanced between sitemesh and tiles - maybe tiles has a configuration overhead (tiles.xml) which makes sitemesh a bit more simple. Cheers, Miguel