Release History

Telerik UI for WinForms 2026.3.812 (2026 Q3)

August 12, 2026

What's new

NEW

• Smart features in RadGridView. (docs)
• New Smart-Paste Button component. (docs)
• Spreadsheet AI tools capabilities. (docs)
• NuGet packages are now also uploaded to NuGet.org.

Common

CHANGED

• The Bin80 and Bin90 folders are removed from the installation folder.
• Telerik is added as a prefix to all NuGet packages.

Breaking Changes

• The UI.for.WinForms.AllControls.Net80/Net90/Net462/Net48 packages are no longer produced. Use the Telerik.UI.for.WinForms.AllControls NuGet package.

Dependencies

• Telerik Document Processing Library (DPL) version updated to 2026.3.810.
• Minimum required Telerik Licensing version updated to 1.9.1.

Installation

FIXED

• The Examples project inside the installation folder is unloaded inside Visual Studio.

RadAIPrompt

NEW

• Add LocalizationProvider. (docs)

RadChat

NEW

• Multiple improvements related to layout, multiline support, localization, styling and extensibility.

RadDock

NEW

• Provide an option to control item ordering in QuickNavigator. (docs)

RadDropDownList

FIXED

• Click event does not fire on the arrow button.

RadForm

FIXED

• RadForm: Exception thrown in RadFormUIAutomationProvider

RadGridView

NEW

• Smart Grid Features in RadGridView. (docs)

RadMap

CHANGED

• Micorosft has retired Bing Maps and all Bing Maps provider-related classes have been marked as obsolete.

RadRichTextEditor

FIXED

• Duplicated default ListItem entry in the DropDownList content form on XAML import.

RadSpinEditor

FIXED

• Up and down buttons do not set the value to Maximum and Minimum when RightMouseButtonReset=true.

RadSpreadsheet

NEW

• Introduce smart assistant that uses Document Processing AI Agent Tools. (docs)

RadScreenTip

FIXED

• The control is not scaled correctly on HDPI.

Buttons

NEW

• RadSmartPasteButton is an AI-powered component that streamlines data entry by extracting structured information from clipboard content and automatically populating form fields. (docs)

FIXED

• Setting CheckState to Indeterminate is lost when the form is opened again at design time.

RadProgressBar

NEW

• Improve accessibility and testing capabilities by implementing UI Automation. (docs)