<A target="_blank" href="http://www-10.lotus.com/ldd/stwiki.nsf/dx/Upgrading_the_Sametime_client_embedded_in_Notes_to_Sametime_8.5.1">This is a new article on the Lotus Sametime wiki on how to upgrade the Sametime clien</A>t from 8.x to Lotus Sametime 8.5.1. The authors cover planning, deployment, and trouble-shooting.