Den Delimarsky

Principal Product Manager, Identity and Network Access, SDKs

I am an engineer and product manager on the Microsoft Identity SDK team, spending inordinate amounts of time tinkering with code, discovering new APIs, and waiting for matches to start in Halo Team Slayer lobbies. Learn more on

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Celebrating One Billion MSAL.NET Downloads

Celebrating the first billion downloads of the Microsoft Authentication Library for .NET.

Announcing the Upcoming Deprecation of MSAL.NET for Xamarin and UWP

Announcing the deprecation of the Xamarin and UWP versions of MSAL.NET starting with MSAL.NET 4.61.0.

Introducing Microsoft Entra ID Recommendations For Identifying ADAL Applications

Earlier this year we announced the sunset of the Azure AD Authentication Library (ADAL). ADAL has been officially deprecated on June 30th of this year. As part of this announcement, we heard it loud and clear from our customers that they need help in identifying applications that still use ADAL in their tenants.

Using the Microsoft Authentication Library with the Windows authentication broker

One of the interesting developments in the last few years in the field of authentication is the use of authentication brokers. Authentication brokers help make your applications more secure and resilient by enabling developers to remove the need to handle refresh tokens, simplify the user authentication flow and remove any variability from it, and take advantage of more complex authentication features, like Windows Hello, conditional access, and FIDO keys.

Announcing Microsoft Authentication Library for .NET 4.54.0, with General Availability of Managed Identity APIs

Today our team is excited to announce the release of Microsoft Authentication Library (MSAL) for .NET version 4.54.0!

Improved Windows Broker Support with MSAL.NET

The Identity SDK team just released a brand-new version of the Microsoft Authentication Library (MSAL) for .NET that introduces an improved experience for developers using authentication brokers to simplify how they acquire and use tokens in their applications. To take advantage of the new broker functionality, developers will need to use the...

Update your applications from ADAL to MSAL

Since the release of Azure Active Directory Authentication Library (ADAL) we have made considerable progress in evolving the Microsoft identity platform developer tools, consistently bringing new features and capabilities that enable developers to build secure applications with minimal friction. As we grew the platform, we also learned that ...