| ⇢ | A | Config::get_merchant_account() added | |
| ⇢ | A | Config::get_api_url() added | |
| ⇢ | A | Config::get_api_key() added | |
| A | ↛ | Gateway::handle_authorization_event() removed | |
| A | ↛ | Gateway::maybe_handle_notification() removed | |
| A | ↛ | Client::set_mode() removed | |
| A | ↛ | Client::set_merchant_account() removed | |
| A | ↛ | Client::get_api_url() removed |