* The new resource [Coupon Set](https://apidocs.chargebee.com/docs/api/coupon_sets) has been added

* The API end point create a coupon code for a coupon has been deprecated in coupon code resource

* The attribute [coupon_set_id](https://apidocs.chargebee.com/docs/api/coupon_codes#coupon_code_coupon_set_id) has been added to Coupon Code resource

* The deprecation has been removed for [Collect payment for customer](https://apidocs.chargebee.com/docs/api/customers#collect_payment_for_customer) in customer resource

* New end point Manage payment source and Collect now has been added as deprecated API to hosted page. Please mail us at support@chargebee.com to enable

** Attributes added**:
* New attribute [remaining_billing_cycles](https://apidocs.chargebee.com/docs/api/subscriptions#subscription_addons_remaining_billing_cycles) has been added in addons under subscription resource.

** Events added**:
* New event type coupon_set_created, coupon_set_updated, coupon_set_deleted, coupon_codes_added, coupon_codes_updated, coupon_codes_deleted