AWS IoT Device Tester for Amazon FreeRTOS now supports Amazon FreeRTOS 201910.00. With this release, silicon vendors can qualify their development boards with secure elements to AWS device catalog using the latest Amazon FreeRTOS. The latest AWS IoT Device Tester also brings improvements for SecureSockets and WiFi test groups by providing an ability to configure the preferred port for Echo server.

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/10/aws-iot-device-tester-v-1-5-0-for-amazon-freertos-now-supports-amazon-freertos-201910-00/