VMware had officially released the vSphere 4 update 1 yesterday. There are many new support features and also bug fixes. Is time to take a look for a major upgrade this month to overcome some challenges we faced with the previous version.

Please view more information from the release note.

Beside the bug fixes, there are some new key highlight here too.

VMware View 4.0 support – This release adds support for VMware View 4.0, a solution built specifically for delivering desktops as a managed service from the protocol to the platform.

Windows 7 and Windows 2008 R2 support –Officially Supported both windows 7 and 2008 R2 for 32 bits and 64 bits. The previous issue for the viclient that could not run on Windows 7 had been solved

Enhanced Clustering Support for Microsoft Windows – Microsoft Cluster Server (MSCS) for Windows 2000 and 2003 and Windows Server 2008 Failover Clustering is now supported on an  (HA) and (DRS) cluster in a limited configuration.

Enhanced VMware Paravirtualized SCSI Support – Support for boot disk devices attached to a Paravirtualized SCSI ( PVSCSI) adapter has been added for Windows 2003 and 2008 guest operating systems

Improved vNetwork Distributed Switch Performance – Several performance and usability issues have been resolved resulting in the following:

• Improved performance when making configuration changes to a vNetwork Distributed Switch (vDS) instance when the ESX/ESXi host is under a heavy load
• Improved performance when adding or removing an ESX/ESXi host to or from a vDS instance

Increase vCPU per Core Limit – The limit on vCPUs per core has been increased from 20 to 25. This change raises the supported limit only. It does not include any additional performance optimizations.