Now .NET 4.6 has been deprecated and removed from hosted Azure DevOps build agents. So the fork stopped building because tools are not installed and code is not compliable on later versions of .NET. My question what is the way forward for hybrid SharePoint apps? I support S2S high trust apps on premises and Azure AD in SharePoint Online? If the good old TokenHelp.cs is dead while SharePoint Server is supported, what is the recommended library for high trust apps?