VMware announced a new version of VMware vSphere 5.1 at VMworld USA. I created a nice summup of all new features to give you nive clean overview

if you are going to upgrade vsphere 5.1 please read this links and notic changes them

 

vSphere 5.1 What’s New

• What’s New in VMware vSphere 5.1
• What’s New in VMware vSphere 5.1 – Storage
• What’s New in VMware vSphere 5.1 – Performance
• What’s New in VMware vSphere 5.1 – Platform
• What’s New in VMware vSphere 5.1 – Networking
• What’s New in VMware vSphere 5.1 – VMware vCenter Server