I was going through related posts all around internet but didn't find anything helpful which compatible .net 6/7. Found out Microsoft.PowerPlatform.Dataverse.Client package but not sure about this. Can somebody suggest me the proper way/packages to modernize our .net framework solution to work with dynamics 365?
NuGet package Microsoft.PowerPlatform.Dataverse.Client is the first choice when connecting to Dataverse/Dynamics 365 CE from external .NET components. It targets the .NET Frameworks 4.6.2, 4.7.2, 4.8, .NET Core and .NET 6.0.
There is still some tooling from MS targeting other frameworks that occasionally can force you to work with that, but when possible I would choose package Microsoft.PowerPlatform.Dataverse.Client.
Edit: for on premises deployments keep using older technology.