AWS IoT Device Tester v1.2, a Windows/Linux/Mac test automation tool for connected devices, is now available for Amazon FreeRTOS 1.4.8. You can download the latest release here.

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/05/aws-iot-device-tester-v120-now-available-amazon-freertos-v148/