1. Do one of the following:If you have permission to edit public templates, from Setup, enter Email Templates in the Quick Find box, then select Classic Email Templates.If you don’t have permission to edit public templates,go to your personal settings. Enter Templates in the Quick Find box, then select Email Templates or My Templates—whichever oneappears.
2. If you have permission to edit public templates, from Setup, enter Email Templates in the Quick Find box, then select Classic Email Templates.
3. If you don’t have permission to edit public templates,go to your personal settings. Enter Templates in the Quick Find box, then select Email Templates or My Templates—whichever oneappears.
4. Click the Email Template Name for the Visualforce email template.
5. Click Edit Template and then click Version Settings.
6. Select a Version for each managed package referenced by the Visualforce email template. This version of the managed package is used by the Visualforce email template if later versions of the managed package are installed, unless you manually update the version setting. To add an installed managed package to the settings list, select a package from the list of available packages. The list is only displayed if you have an installed managed package that is not already associated with the Visualforce email template.
7. Click Save.