Olga Dalton contributed to the AzureAD/microsoft-authentication-library-for-objc and related Objective-C libraries by delivering features and fixes that improved authentication reliability and automation. She enhanced test automation by refining cookie handling and clearing mechanisms, ensuring better test isolation and stability. Olga upgraded core dependencies, such as the IdentityCore and MSAL submodules, to incorporate the latest stable components and bug fixes. She also expanded Microsoft Account automation support, aligning cross-repo components for consistent automated testing. Her work included updating documentation for authentication UI and managing Xcode project configurations, demonstrating depth in automation testing, submodule management, and iOS development throughout the three-month period.