This upgrade guide covers upgrading from Duende IdentityServer v5.0 to v5.1 (release notes). Fortunately there’s not much to do :)
In your IdentityServer host project, update the version of the NuGet. For example in your project file:
<PackageReference Include="Duende.IdentityServer" Version="5.0.0" />
would change to:
<PackageReference Include="Duende.IdentityServer" Version="5.1.0" />
If you are using a database for your operational data, then there is a small database schema update. This includes:
If you are using the Duende.IdentityServer.EntityFramework package as the implementation for the database and you’re using EntityFramework Core migrations as the mechanism for managing those schema changes over time, the commands below will update those migrations with the new changes. Note that you might need to adjust based on your specific organization of the migration files.
dotnet ef migrations add Update_DuendeIdentityServer_v5_1 -c PersistedGrantDbContext -o Data/Migrations/IdentityServer/PersistedGrantDb
Then to apply those changes to your database:
dotnet ef database update -c PersistedGrantDbContext
That’s it. Of course, at this point you can and should test that your IdentityServer is updated and working properly.