ModernSP 

A .NET 4.5.2 assembly for SharePoint 2016 that contains a SPHelpers class which implements useful Client Side Object Model (CSOM) helper methods. This is a required base class to all other ModernSP.DotNet.SPHelpers.SP2016.Extensions.

A .NET 4.5.2 assembly for SharePoint 2013 that contains a SPHelpers class which implements useful Client Side Object Model (CSOM) helper methods. This is a required base class to all other ModernSP.DotNet.SPHelpers.SP2013.Extensions.

A .NET 4.5.2 assembly for SharePoint Online that contains a SPHelpers class which implements useful Client Side Object Model (CSOM) helper methods. This is a required base class to all other ModernSP.DotNet.SPHelpers.SPOnline.Extensions.

A .NET 3.5 assembly for SharePoint 2010 that contains a SPHelpers class which implements useful Client Side Object Model (CSOM) helper methods. This is a required base class to all other ModernSP.DotNet.SPHelpers.SP2010.Extensions.