Migrating from TC3.3.1 to TC4.1.30 What's changed?

[Lemke, Michael IZ/HZA-IOR]

I have to migrate out TC3.3.1 to TC4.1.30 to support a third party application.
Apparently, the conf/server.xml has changed considerably.  I can't find any
change logs or FAQs to do that sort of migration.
 
One problem: I launched the webapps with files like conf/apps-APPNAME.xml.  How
do I do that with TC4.1.x?
 
 
Thanks,
Michael