Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

Impact on Authentication from SameSite changes in Chrome 

Following the recent updates to the standards of SameSite property in HTTP cookies, Chrome has announced changes to the default behavior of SameSite in an upcoming release of the browser in February. Web application developers are recommended to update their application code to handle different SameSite properties on Chrome and other browsers. 

Microsoft Authentication Libraries for Java and Python are now generally available

Hello developers! Earlier this year at //Build, we announced the general availability of Microsoft Authentication Libraries (MSAL) for .NET and JavaScript, followed by iOS, macOS and Android. As the year ends, we’re excited to announce that MSAL Java and MSAL Python are now generally available! MSAL enables applications to integrate with...

Now available: Azure AD App registrations Token configuration (preview) simplifies management of optional claims

Hello Developers! To simplify the management of optional claims, we’re introducing a new Token configuration (preview) experience within Azure AD App registrations. App developers can use optional claims to specify which claims they want in the tokens sent to their application, which is useful when migrating apps to the Microsoft ...

Deprecation of App registrations (Legacy) experience and the Application Registration Portal (

In May 2019, we announced general availability of a new unified App registrations experience in the Azure portal to give developers a central place to register and configure all their apps that sign in Azure Active Directory accounts and personal Microsoft accounts. With the new App registration experience available to all developers, we are sharing our planned end of life of the Application Registration Portal ( and App registrations (Legacy) experience.

Microsoft identity platform at Ignite 2019

We’re thrilled to be at Microsoft Ignite in Orlando, FL this week engaging with our community of IT professionals and developers. We’re excited to be showing the latest improvements that we’re making to the Microsoft identity platform so it's easier to develop apps that integrate with any Microsoft identity. Read on to learn more on how we’re continuing to improve the Microsoft identity platform and what we’re announcing this week at Ignite.