The attribute 'balance_currency_code' has been deprecated and attribute 'currency_code' has been added to Balances sub-resource in Customer resource.
See : https://apidocs.chargebee.com/docs/api/customers#customer_attributes

The attribute done_by has been added to Promotional credits resource.
See : https://apidocs.chargebee.com/docs/api/promotional_credits

New payment method wechat_pay has been added.
See : https://apidocs.chargebee.com/docs/api/customers#customer_attributes

The endpoint Manage Payment Sources has been undeprecated in Hosted pages resource.
See : https://apidocs.chargebee.com/docs/api/hosted_pages