| ⇢ | A | PaymentRequest added | |
| ⇢ | A | Statuses added | |
| ⇢ | A | Client added |
| ⇢ | B | Statuses::transform() added | |
| ⇢ | B | Client::get_issuers() added | |
| ⇢ | B | Client::get_payment_methods() added | |
| ⇢ | A | Client::send_request() added | |
| ⇢ | A | PaymentRequest::get_array() added | |
| ⇢ | A | Gateway::update_status() added | |
| ⇢ | A | Gateway::get_issuers() added | |
| ⇢ | A | Client::get_payments() added | |
| ⇢ | A | Client::get_error() added | |
| ⇢ | A | Gateway::get_supported_payment_methods() added | |
| ⋮ | view more | ||
| A | ↘ | B | Gateway::start() got worse |
| A | ↛ | Gateway::get_output_html() removed | |