The option to levy a penalty when a subscription is downgraded, has been deprecated.
New plan creations won't have the option to specify a downgrade penalty.
Existing plans will not be affected for the time being and downgrades will continue to behave as designed.
The feature will be completely disabled on the 1st of September 2015 and any subscriptions on plans with a downgrade penalty will not have any downgrade charges applied if they move to a lower plan.