It's time to move from Web HMI to Proficy Operations Hub! Visit the Operations Hub web page, download a free trial or check out the datasheet.

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Install and Upgrade
Upgrade Web HMI
When installing Web HMI 2.2 SP2 on a machine that previously had an earlier version, the upgrade process automatically backs up existing PostgreSQL databases as well as the model and server data.
Back Up Customized Components
Before you upgrade, back up any changes made to the Web HMI menu and components in Application Assembler (ThingWorx).

Web HMI Products Documentation

Back Up Customized Components

Before you upgrade, back up any changes made to the Web HMI menu and components in Application Assembler (ThingWorx).

In Application Assembler, rename all new and customized Web HMI component content.
Upgrade Web HMI, as explained in Upgrade Web HMI.
An upgrade does not remove any mashups that you added.
Optional: If you changed a component, such as a mashup, that was part of the Web HMI installation, you must rename it and incorporate it in to your own extension, and then import it, as explained in Import Extensions.
Optional: If you modified the Web HMI menu to include links to custom mashups, you must recreate these links, as explained in Add Menu Items.