1.11.0
* Prevent error in SSL version check if curl is not available [#706](https://github.com/paypal/PayPal-PHP-SDK/pull/706). * Stop auto-generating PayPal-Request-Id header values and allow SDK users to optionally set the value [#747](https://github.com/paypal/PayPal-PHP-SDK/pull/747). * Remove automatic retries on failed requests [#747](https://github.com/paypal/PayPal-PHP-SDK/pull/747).