vSphere 4.x Support
vSphere 4.x moves from the General Support phase into the Technical Guidance phase on May 21, 2014. During Technical Guidance, customers receive support but VMware does not offer new security patches or bug fixes. For information on what is provided during Technical Guidance, see the VMware support lifecycle policy. VMware has developed a vSphere 4.x Extended Support offering for customers who require triage of Severity 1 issues and new security fixes after May 21, 2014.