Release History

Telerik UI for WPF 2026.2.701

July 2, 2026

Common

FIXED

• In a new Telerik csproj from VSExtensions using NuGets, trying to type in MainWindow.xaml freezes the VS window.
• The upgrade wizard for WPF do not work with projects targeting 4.8 .NET Framework.

Dependencies

• Telerik Document Processing Library (DPL) version updated to 2026.2.624.

BusyIndicator

FIXED

• Busy animation continues running on the background when the RadBusyIndicator gets unloaded.

Chart

FIXED

• Error when loading resources in for RadChart.

Chat

NEW

• Improved MouseOver state of download attachment button in Material, VS2019 and Crystal themes.

FIXED

• Messages that use MessageDisplayPosition.Overlay and MessageDisplayPosition.Popup are not displayed when added before the chat is loaded.

RichTextBox

FIXED

• Hovering a DocumentPosition instance in Visual Studio during debug shows DebuggerDisplay reaches max recursion count error.
• Unexpected Cursor Behavior with Left Arrow Key.
• Memory leak when changing the documents.

Spreadsheet

FIXED

• The items in the named ranges drop down list don't display underscore character if presented in the name of the range.