I need old installers for specific versions or access to them on the NuGet server but not available

[Stephen]

I waited for support and did not get a valid answer ... I need help as soon as possible please

I need these versions of the assemblies and when I try to browse the NuGet server in visual studio it find nothing .. and the Control Panel does not allow me to install previous versions and the versions shown are not availible for download 

There are multiple versions of files ... why would I use 2020.2.617  when the project and deployed versions are 2020.2.615.40 ?

Telerik.Web.Design, Version=2020.2.617.45

Telerik.Web.Spreadsheet, Version=2020.2.616.40

Telerik.Web.UI, Version=2020.2.617.45

Telerik.Web.UI.Skins, Version=2020.2.617.45

Telerik.Windows.Documents.Core, Version=2020.2.615.40

Telerik.Windows.Documents.Flow, Version=2020.2.615.40

Telerik.Windows.Documents.Spreadsheet, Version=2020.2.615.40

Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml, Version=2020.2.615.40

Telerik.Windows.Zip, Version=2020.2.615.40

Telerik.Reporting, Version=14.1.20.618

Telerik.ReportViewer.WebForms, Version=14.1.20.618

[Stephen]

I'm trying to figure it out here as well 

Installing a previous version of controls in UI for ASP.NET AJAX | Telerik Forums

 

[Rumen]

Hi Stephen,

Just checking whether the provided assistance in Installing a previous version of controls in UI for ASP.NET AJAX | Telerik Forums and your ticket on the matter were helpful.

- Rumen