This covers the following releases (6.0.6, 6.0.6.1, 7.0, 7.0.1)

Instructions for installing

Shutdown the server (stopKC.sh/stopKC.bat)
locate the kc.war (KnowledgeCenter/runtime/app/kc.war)
delete the old kc.war (replace with the new KC.war)
Start the server (startKC.sh/StartKC.bat)