Difference between Bin and Bin40

[RTA]

I'm looking for some clarification on the Bin and Bin40 directories.

I a previous thread there was mention that Bin was for .net 2.0 and Bin40 was for .net 4.0, but that doesn't really explain how the directories should be used. We build under .net 4.0.  Recently in our projects, we somehow found some references to assemblies in the Bin directory that were causing exceptions.  We never reference anything in that dir... at least not intentionally. 

Can someone explain the difference between what's in the Bin and Bin40 directories, why they exist and what developers need to know about them?   Thanks.  

Steve

 

[Stefan]

Hi Steve,

Thank you for writing.

Your findings are correct. We do provide two sets of assemblies, one build for .NET versions prior 4.0 (that would be Bin) and one built for .NET 4.0 and above (that would be Bin40). Depending on your project's Target Framework, you would pick the right Telerik assemblies for the purpose.

You can also identify whether an assembly is 2.0 or 4.0 by looking at their version suffix - 2.0 will end up with .20 e.g. 2015.1.331.20 and 4.0 will end with .40 e.g. 2015.1.331.40.

That’s pretty much all you need. The most important thing is to never mix .20 and .40 assemblies in the same project, as this might cause issues.

I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.

Regards,
Stefan
Telerik