I have a number of small number of servers that are configured to use server type "autorelease". After upgrading to v6.0 the autorelease server type is missing from the list and I can no longer setup this type of server. I also cannot edit a server assigned to this server type because if I save it I am forced to assign one of the other server types which, of course, would not be correct.
Thankfully, however, Auto Release continues to appear as a valid module name under the "Module Settings" tab of products so this problem appears to be isolated to the "Setup / Product/Services / Servers" "Add New Server" or "edit" server web page.