After the vSphere 5.1 announcement VMware also released a new update on vSphere ESXi 4.1, ESX 4.1 and vCenter Server 4.1.

What’s new?

• Support for additional guest operating systems: This release updates support for many guest operating systems.
• Resolved Issues: This release also delivers a number of bug fixes
• Updated VMware tools: Update 3 contains the latest version of VMware Tools
• Updated vSphere client: Update 3 contains the latest version of the vSphere Client

Supported Upgrade Paths for Host Upgrade to ESXi 4.1 Update 3:

Supported Upgrade Paths for Host Upgrade to ESX 4.1 Update 3:

For more information I suggest reading the release notes:

• VMware ESXi 4.1 Update 3 Release Notes
• VMware ESX 4.1 Update 3 Release Notes
• VMware vCenter Server 4.1 Update 3 Release Notes

Happy updating!