APIs added:
Retrieve a subscription with scheduled changes applied. See https://apidocs.chargebee.com/docs/api/subscriptions#retrieve_with_scheduled_changes.
Remove schedule changes for a subscription. See https://apidocs.chargebee.com/docs/api/subscriptions#remove_scheduled_changes.

APIs updated:
Ability to pass description for Plans & Addons while Creating & Updating.

APIs Removed:
Refund a Transaction - In ChargeBee, the 'refunds' are tracked against the invoice for which they are issued. A payment transaction can be associated with only one invoice now. So Transaction.refund() API is indeed a shortcut for Transaction.associatedInvoice().refund().

Added properties:
Property has_scheduled_changes added to the Subscription resource to indicate whether there are any pending change scheduled for this Subscription