What's fixed:
1) Fixed an issue related to exporting to MailChimp
2) Delete promo code configuration now returns a 200 response (previously returned 204)
3) Response when creating a promo code now includes the is_active attribute
4) Fixed an issue where offline donations could not be created for campaigns with an end date in the past
5) Fixed an issue where fundraising pages weren't created for registration with fundraising campaigns with an end date in the past
6) Fixed an issue with updating supporters that did not have a value for source_campaign_id (legacy data)
7) Fixed an issue that caused a discrepency between donation net amount and charged total gross amount
8) Fixed an issue with updating a campaign to set classy_mode_checked_by_default to true
What's new:
1) Email opt_in field is now returned when fetching a transaction with supporter data
2) Promo codes can now be fetched along with a cart
3) Promo code is_active field now defaults to true
4) The value of the code attribute for a promo code can no longer be changed once the code has been applied at least once
5) The charged_total_gross_amount field is now required for all credit card transactions
6) Exposed classy_fee_percent when fetching an organization
7) For events, added support in the cart to hard credit an additional donation
8) New registration with fundraising settings to allow creation of teams by fundraisers and to make joining a team required, optional, or prohibited
9) Organizations using registration with fundraising now have the ability to allow registration purchases to count toward the registrants' fundraising pages