Ayush Jaiswal developed two features for the microsoft/WindowsAppSDK repository, focusing on authentication reliability and platform compatibility. He implemented comprehensive unit tests for the OAuth2Manager API using C++ and a mock HTTP server, covering diverse authentication flows, token requests, and error handling with in-process interception to ensure robust validation. Additionally, Ayush updated the OAuthTestApp and OAuthTestAppPackage to target Windows 10.0 general and 10.0.19041.0, improving compatibility for test applications. His work leveraged skills in build systems, Windows API, and unit testing, resulting in deeper test coverage and reduced integration risk for future continuous integration and partner scenarios.