vSphere 4.1 is out and there are a lot of changes so make sure to read the documentation. Here are some links for 4.1 documentation:
vSphere 4.1 links
What’s New in vSphere 4.1 Networking - http://www.vmware.com/resources/techresources/10113
What’s New in vSphere 4.1 Storage - http://www.vmware.com/resources/techresources/10117
What’s new in Availability & Resource Management in vSphere 4.1 - http://www.vmware.com/resources/techresources/10115
What’s New in Performance - http://www.vmware.com/resources/techresources/10116
Network IO Control - http://www.vmware.com/resources/techresources/10119
ESXi Migration - http://www.vmware.com/resources/techresources/10112
What’s new in vCenter Server 4.1 - http://www.vmware.com/resources/techresources/10114
Latest compatibility matrix http://www.vmware.com/pdf/vsphere4/r40/vsp_compatibility_matrix.pdf
KBTV (there are how to videos here) How to upgrade using the data migration tool http://blogs.vmware.com/kbtv/2010/07/how-to-upgrade-to-vmware-vcenter-server-41-using-the-data-migration-tool.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+vmwarekbtv+%28VMware+KBTV%29
Also if you have not seen some of the new articles from support and VMwareTV you should take a look there is a lot of information being released.
VMware Support
KB Digest these get updated every week: http://blogs.vmware.com/kbdigest/2010/07/new-articles-published-for-week-ending-7242010.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+VmwareKnowledgebaseWeeklyDigest+%28VMware+Knowledge+Base+Digest%29
From the support desk, these are great articles about things the support desk see and how to resolve them http://blogs.vmware.com/kb/2010/07/questions-questions-questions.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+VmwareKnowledgebaseBlog+%28Support+Insider%29







