NuGetSystem.
System.IdentityModel.Tokens.Jwt
Includes types that provide support for creating, serializing and validating JSON Web Tokens. As of IdentityModel 7x, this is a legacy tool that should be replaced with Microsoft.IdentityModel.JsonWebTokens.
.NETWindowsAuthenticationIdentityJsonWebToken
github.com/AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnetMITMicrosoft1.2k · 472 forks · 150 contributors
Release cadenceEvery 8 days
Last releaseSep 25, 2026
Open advisories0
Changelog quality74% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
83 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionSystem.IdentityModel.Tokens.Jwt 7 → 87.7.3 → 8.23.0Sep 18, 2026 BreakingBreaking16Security9Deprecated1New51Changed58Fixed56Other160System.IdentityModel.Tokens.Jwt 6 → 76.36.0 → 7.7.3Jul 14, 2026 BreakingBreaking1Security4Platform1Deprecated1New9Changed23Fixed25Other34System.IdentityModel.Tokens.Jwt 5 → 65.7.2 → 6.36.0Jul 19, 2024 BreakingBreaking4Security7Deprecated2New47Changed49Fixed52Other21System.IdentityModel.Tokens.Jwt 4 → 54.0.4.403061554 → 5.7.2Sep 25, 2026 BreakingBreaking1Security3New22Changed10Fixed9Other9System.IdentityModel.Tokens.Jwt 3 → 43.0.2 → 4.0.4.403061554Mar 7, 2017 UnknownSystem.IdentityModel.Tokens.Jwt 1 → 31.0.0 → 3.0.2Jan 31, 2014 Unknown
VersionChannelDateChangesSecurity
8.23.0 StableSep 18, 2026New2Changed3Fixed1Other18.22.0 youStableJul 29, 2026New1Changed18.21.0 StableJul 22, 2026Changed2Fixed18.20.0 YankedDeprecated Oct 20, 2026No notes published8.19.2 StableJul 14, 2026Fixed18.19.1 StableJun 4, 2026Fixed18.19.0 StableJun 4, 2026Security4New1Changed1Fixed58.18.0 StableApr 30, 2026New28.17.0 StableMar 24, 2026Changed18.16.0 StableFeb 13, 2026New1Fixed18.15.0 StableNov 18, 2025Security1New1Changed1Other148.14.0 StableAug 15, 2025Fixed18.13.1 StableAug 8, 2025Changed2Fixed18.13.0 StableJul 21, 2025Changed2Other18.12.1 StableJun 17, 2025Fixed1Other28.12.0 StableJun 3, 2025New1Fixed1Other38.11.0 StableMay 23, 2025New38.10.0 StableMay 15, 2025Changed2Fixed1Other18.9.0 StableApr 24, 2025New2Changed1Fixed28.8.0 StableApr 8, 2025New1Changed2