VMware vCenter Release and Build Number History

You can find the release and build number history

The following listings are a comprehensive collection of VMwares major management system, the vCenter Server.

    vCenter Server 7.0

    vCenter Server 6.7 (Appliance)

    vCenter Server 6.7 (Windows)

    vCenter Server 6.5 (Appliance)

    vCenter Server 6.5 (Windows)

    vCenter Server 6.0 (Appliance)

    vCenter Server 6.0 (Windows)

    vCenter Server 5.x (Appliance)

    vCenter Server 2.5 - 5.5 (Windows)

Link: https://www.virten.net/vmware/vcenter-release-and-build-number-history/