Updated Information

This vSphere Upgrade guide is updated with each release of the product or when necessary.

This table provides the update history of the vSphere Upgrade.

Revision	Description
02 APR 2021	Updated the list of supported browser versions for the vSphere Web Client in vSphere Web Client Software Requirements. VMware has rebranded the My VMware portal as VMware Customer Connect. We updated the vSphere Upgrade documentation to reflect this name change.
11 AUG 2020	At VMware, we value inclusion. To foster this principle within our customer, partner, and internal community, we are replacing some of the terminology in our content. We have updated this guide to remove instances of non-inclusive language.
29 APR 2020	Added the prerequisite that, when upgrading or migrating vCenter Server, you must create a backup of the existing vCenter Server or Platform Services Controller nodes in your environment. You can use the backup as a precaution in case there is a failure during the deployment process. See Prerequisites for Upgrading the vCenter Server Appliance or Platform Services Controller Appliance and Prerequisites for Migrating vCenter Server and Platform Services Controller.
04 MAY 2018	Updated the description of ports 80 and 443 in Required Ports for vCenter Server and Platform Services Controller. Removed the HTTP and HTTPS custom port option from Stage 1 - Deploy the OVA File of the New vCenter Server Appliance With an Embedded Platform Services Controller, Stage 1 - Deploy the OVA File of the New Platform Services Controller Appliance, and Stage 1 - Deploy the OVA File of the New vCenter Server Appliance With an External Platform Services Controller. The custom port option is only available during the installation of vCenter Server 6.5 Update 2. You cannot customize the HTTP and HTTPS port numbers when upgrading to vCenter Server 6.5 Update 2. Removed the custom port option from Deploy the OVA File for Migrating to the Target vCenter Server Appliance with an Embedded Platform Services Controller, Deploy the OVA File for Migrating to a Platform Services Controller Appliance, and Deploy the OVA File for the Target vCenter Server Appliance with an External Platform Services Controller. The custom port option is only available during the installation of vCenter Server 6.5 Update 2. You cannot customize the HTTP and HTTPS port numbers when migrating from a Windows-based vCenter Server to vCenter Server Appliance 6.5 Update 2. However, with vCenter Server 6.5 Update 2, you can migrate vCenter Server installed on Windows with custom HTTP and HTTPS ports to vCenter Server Appliance, and the custom port values are retained. By default, the vCenter Server HTTP and HTTPS ports are 80 and 443.
03 MAY 2018	Initial release.