This release fixes a security issue: values for field types "Select list" and "Constant" were not always sanitized.
Warning for users upgrading from 6.x-2.0-alpha1
Users still on 6.x-2.0-alpha1 should be careful when updating, as Extra Fields Pane's API had changed significantly between 6.x-2.0-alpha1 and 6.x-2.0-beta1. Read UPGRADE.txt for more information.