What's new

UI for ASP.NET AJAX

Release History

Telerik UI for ASP.NET AJAX 2026.1.225

February 25, 2026

Security

FIXED

Common

FIXED

Editor

FIXED
  • Duplicate toolbars rendered when ToolProviderID is used with programmatically added Tools

Gantt

FIXED

HtmlChart

FIXED

SearchBox

FIXED
  • Fixed the EnableAriaSupport ClientPropertyName mismatch

SmartPasteButton

NEW
  • Added Visual Studio Designer support for RadSmartPasteButton
  • Added RenderMode support for RadSmartPasteButton

Spreadsheet

FIXED

UI for ASP.NET AJAX

Product overview Download Free Trial

New features & Roadmap

Have a feature request?

Post your feedback via the ASP.NET AJAX Feedback Portal.

What's new across all Telerik products?

See the updates feed

Getting Started Section Wavy Background

Next Steps

Launch demos

See Telerik UI for ASP.NET AJAX in action and check out how much it can do out-of-the-box.

Compare pricing

Check out the offers. Purchase an individual suite, or treat yourself to one of our bundles.

Download Free Trial

Try Telerik UI for ASP.NET AJAX with dedicated technical support.