When one is doing a version upgrade, between lets say 4.0b and 4.0d community, it is documented that one need only replace the WAR files in the Tomcat/webapps folder. Ok, this has worked in updating 4.0 to a, b, and c. However, I'm finding it fails, or appears to fail when going from c to 4.0d as when I check in /alfresco/ system properties, the version of the app/build does not update.
Now you can remove the existing /alfresco folder that is the unpacked war, however, if you so do, you loose any customizations you have done inside the WEB-INF areas for things like content modeling.
So the questions would be:
1. where would one verify that indeed the new war has been upacked and loaded by tomcat on the restart and
2. what is the best way to preserve customizations when you must remove the /webapps/alfresco folder.