What is the Impact Migrating from .Net Framework 4.5 to 4.8 Telerik.Web.* Dlls

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General Discussions UI for ASP.NET AJAX in ASP.NET MVC
T
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T asked on 20 May 2024, 10:08 PM

We are using the below .dlls as standalone .dlls (Not from Nuget package installation) In a .Net Framework Web Forms Application

We want to migrate/upgrade to .Net framework 4.8

Are these Dlls backwards compatible or should i use new versions of these dlls that will be compatible with .Net Framework 4.8?

  • Telerik.Web.Design, Version=2013.2.717.40
  • Telerik.Web.UI, Version=2013.2.717.40
  • Telerik.Web.UI.Skins, Version=2013.2.717.40

Thanks!

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Rumen
Telerik team
answered on 21 May 2024, 08:48 AM

Hi there,

It is important to start with that version 2013.2.717.40 is vulnerable to critical security issues and it is strongly recommended to upgrade to 2020.1.114 or later. You can find more details at https://docs.telerik.com/devtools/aspnet-ajax/knowledge-base/common-allows-javascriptserializer-deserialization

As per the Microsoft guidelines on .NET Framework backward compatibility, assemblies built for earlier versions of the .NET Framework should work on newer versions without modification. This includes the Telerik UI for ASP.NET AJAX controls. Therefore, your existing Telerik assemblies from version 2013.2.717.40 should function in a .NET Framework 4.8 environment.

However, it's important to note that using such an old version of Telerik UI for ASP.NET AJAX might lead you to face issues with security, with the modern browsers' compatibility and lack of newer features and bug fixes. I strongly recommend considering an upgrade to the latest version of Telerik UI for ASP.NET AJAX to ensure full compatibility with modern environments and to take advantage of the latest improvements and support for modern browsers.

You can refer to our documentation for guidance on upgrading Telerik UI for ASP.NET AJAX: https://docs.telerik.com/devtools/aspnet-ajax/upgrade-compatibility/upgrading-instructions/upgrading-a-trial-to-a-developer-license-or-to-a-newer-version#upgrade-to-a-newer-version-of-telerik-ui-for-aspnet-ajax

 

    Regards,
    Rumen
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