4 Big Microsoft Teams And Security Updates At Build 2021 The company is using the conference for developers to unveil updates including more controls for developers and administrators in Teams and a tamper-proof ledger powered by Azure. By Wade Tyler Millward May 25, 2021, 11:00 AM EDT Focus On Developers Microsoft is using its Build 2021 conference for developers to unveil significant updates for two of its widely used solutions--the Teams collaboration app and Azure Active Directory authentication service. The updates include more controls for developers and administrators in Teams, a new Teams store experience for third-party apps, a tamper-proof ledger powered by Azure and a metered Microsoft Graph service.