To set the Salesforce API and Visualforce version for a Visualforce
page or custom component:
-
Edit a Visualforce page or component and click
Version Settings.
You can only modify
the version settings for a page or custom component on the Version Settings
tab when editing the page or component in Setup.
- Select the Version of the Salesforce API. This is also the
version of Visualforce used with the page or component.
- Click Save.