v2.0: Stripe now has a statement descriptor suffix.
v2.0: Bugfix to prevent cart validation errors on certain subscription actions.
v2.0: Fix to Amazon Pay signup in the admin.
v2.0: API improvement to allow for API-initiated transactions to be able to use multiple different tokens for a single customer, for more hosted/embedded payment methods (Stripe, Square, etc.).
v2.0: Checkout improvement to clear payment fields when an authenticated customer changes emails.