Migrated to .NET 4.0 however MicrosoftAjax.debug.js still says version 3.5

Question

Recently upgraded the entire project to .NET 4.0 but when I debug javascript (using FireBug or Developer tools for IE9) it says the javascript file MicrosoftAjax.debug.js is still version 3.5 - is this an issue?

// Name: MicrosoftAjax.debug.js 
// Assembly: AjaxControlToolkit
// Version: 3.5.40412.0
// FileVersion: 3.5.40412.2
// (c) 2010 CodePlex Foundation 

Answer 1

You have to download new version of AjaxControlToolkit. Upgrading project does not apply to additional assemblies, libraries etc.

http://ajaxcontroltoolkit.codeplex.com/

Please give feedback in comment if i helped.

Answer 2

did you tried bindingRedirect ? Assembly BindingRedirect

from MSDN

A binding redirection in an application configuration file for a unified .NET Framework assembly cancels the unification for that assembly. For example, an application that referenced types in System.XML and was built using runtime version 1.0 would contain static references to the System.XML assembly that shipped with runtime version 1.0. If you wanted to redirect the binding reference to point to the System.XML assembly that shipped with runtime version 1.1, you would put redirect information in the application configuration file.

syntax

<bindingRedirect  
   oldVersion="old assembly version"
   newVersion="new assembly version"/>

eg:

<configuration>
   <runtime>
      <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
         <dependentAssembly>
            <assemblyIdentity name="myAssembly"
                              publicKeyToken="32ab4ba45e0a69a1"
                              culture="neutral" />
            <bindingRedirect oldVersion="1.0.0.0"
                             newVersion="2.0.0.0"/>
         </dependentAssembly>
      </assemblyBinding>
   </runtime>
</configuration>