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Duo Authentication for AD FS - Release Notes

Last Updated: November 8th, 2023

Download the current release from the Checksums and Downloads page.

AD FS for Windows 2016 and later

Version 2.2.0 - November 8, 2023

Version 2.1.0 - May 17, 2023

  • Corrects an issue where some IE 11 authentications encountered Javascript syntax errors.
  • Corrects an issue in the ADFS-Diag.ps1 support script bundled with the previous release where the application's client secret value may have been collected with other system information.
  • Improved client logging.

Version 2.0.0 - May 12, 2022

  • Duo Universal Prompt support with OIDC standards-based redirects. The Duo Prompt no longer loads in an iframe. Learn more about the move to frameless authentication in preparation for Duo Universal Prompt.
  • Validated support AD FS on for Windows Server 2019 and 2022.
  • The installer now defaults to "fail closed" for net new installations. Upgrades preserve the previous fail mode selection.
  • The installer now defaults to TLS 1.2 communications with Duo's service when verifying the application information. The silent install workaround for TLS 1.0 required in previous versions is no longer needed.
  • Duo files now use SHA-256 signing.
  • The Duo AD FS support script is now bundled with the installer. Use this script at the direction of Duo Support.
  • Corrected an issue where the Duo for AD FS application's registry entries may be corrupted after a repair installation.
  • Corrected an issue where the installer created a duplicate registry entry for Duo.
  • Changes the Duo AD FS registry key location to HKLM\Software\Duo Security\DuoAdfs and the registry values IKey and SKey to Client_Id and Client_Secret.

Version - January 2018

Version - October 2017

  • Duo Web SDK 2.6.

Version - November 2016

  • Improved installer logging.
  • ADFS 4 on Server 2016 support.

Version - September 2016

  • Bugfixes.

Version - July 2016

  • Improved handling of encoded URLs.
  • Removed EULA.

Version - December 2015

  • Fixed issue with Chrome browser login using Google G Suite accounts.

Version - July 2015

  • Adaptive iFrame.
  • Installer logic for farm secondary servers.

Version 1.0.1 - March 2014

  • GA release.

AD FS 2.1 for Windows 2012

Version 1.1.8 - November 2014

  • Fail Mode enhancements.

Version 1.1.4 - April 2014

  • Support email address for WS-Federation.
  • Additional bugfixes.

Version 1.1.2 - February 2014

  • GA Release.