I want to migrate my project to .Net 6, is there any updates of OSIsoft.AFSDK.dll that is supported in .Net6 ?

.NET6 is LTS, but it's not the latest version. AVEVA is building a .NET 8 version of the SDK, and you can check the progress here: https://pisquare.osisoft.com/s/question/0D58W0000DOwxtYSQR/status-of-af-sdk-and-net-8-net-core-linux-nuget-etc

.NET6 is LTS, but it's not the latest version. AVEVA is building a .NET 8 version of the SDK, and you can check the progress here: https://pisquare.osisoft.com/s/question/0D58W0000DOwxtYSQR/status-of-af-sdk-and-net-8-net-core-linux-nuget-etc