Vmware announced that the Update 5 of VMware vCebter Server 2.5 (formerly VMware Virtual Center) is available for download (English and Localized) since july 10 of 2009. VirtualCenter 2.5 Update 5 basically solves reported problems and includes scalability improvements allowing to run VMware HA (High Availability) on ESX hosts with more than 35 virtual machines.
If you are planning to upgrade your existing vCenter Server take in consideration that the versions supported are the following:

• VirtualCenter 1.4.1

• VirtualCenter 2.0.2

• VirtualCenter 2.5

• VirtualCenter 2.5 Update 1

• VirtualCenter 2.5 Update 2 

• VirtualCenter 2.5 Update 3 

• VirtualCenter 2.5 Update 4

  
Before you begin upgrading your existing vCenter Server review the Upgrade Guide.

In order to view all solved issues by this version visit the release note page for VMware VCenter Server 2.5 Update 5.

If you have a valid support and suscription or want's to evaluate it visit the download page.