Telerik UI for Blazor Releases

TelerikUI & Visualization Suites.NET
Version 2026 Q2 (v14.1.0) (Jul 16, 2026)

Learn what's new across releases, with details of features, enhancements, and resolved issues.

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Telerik UI for Blazor 2026 Q2 (v14.1.0)Jul 16, 2026
Features
  • Common:
    • Added Expansion Panel.
    • Added compatibility with .NET 11 Preview 6.
  • Dependencies:
    • Added support for Bootstrap theme version 14.3.0.
    • Added support for Classic theme version 14.3.0.
    • Added support for Default theme version 14.3.0.
    • Added support for Fluent theme version 14.3.0.
    • Added support for Material theme version 14.3.0.
    • Added support for Meridian theme version 14.3.0.
  • Chart:
    • Added Justified parameter to CategoryAxis.
  • ContextMenu:
    • Added ContextMenu keyboard customizations.
  • Filter:
    • Added the ability to filter dropdown fields.
  • MultiSelect:
    • Tag mode is enabled by default with 10 max allowed tags.
    • Added select all option.
  • Popup:
    • Added close on outside click.
  • RadioGroup:
    • Added DisabledField support for per-item disabled state.
  • SplitButton:
    • Added Open/Close API methods.
  • StockChart:
    • Added Justified parameter to CategoryAxis.
  • Tooltip:
    • Added collision settings.
  • TreeList:
    • Added export to Excel.
    • Added Size parameter.
  • TreeView:
    • Cyclic TreeView data causes stack exhaustion.
  • Window:
    • Added an option to customize the default keyboard shortcuts.
  • Wizard:
    • Added option to customize the default keyboard shortcuts.
    • Added visible parameter for the wizard steps.
Fixes
  • AppBar:
    • Fixed issue where Secondary and Tertiary theme colors are missing.
  • ColorPicker:
    • Fixed issue where keyboard navigation doesn't remove focused class.
    • Fixed exception when a short hex color value is used.
  • DateInput:
    • Fixed issue where you cannot set value when AutoCorrectParts is false.
    • Fixed issue where year 2001 is shown instead of 0001 for the default (non-nullable) value.
    • Fixed issue where TimeOnly values are not displayed in specific non-US cultures.
  • DropDownButton:
    • Fixed issue where DropDownButton renders text container when no content set.
  • Editor:
    • Fixed issue where Editor loses text selection and cursor position after using tools.
  • FileManager:
    • Fixed Null exception in Details (Preview) pane when deleting the selected item.
    • Fixed issue where programmatic selection does not populate Details (Preview) pane.
  • FloatingLabel:
    • Fixed overlap input when setting the value before loading the data.
  • Grid:
    • Fixed issue where batch deletion properly deletes all items.
    • Prevent full grid re-render on each keystroke in EditorTemplate.
    • Fixed issue where multi-column headers are not exported to Excel.
    • Fixed issue where locked column is not unlocked on state change.
    • Fixed issue where resizing a non-locked column displaces the first locked one.
    • Fixed issue where an exception is thrown for CheckBoxListFilter when used with ExpandoObject.
    • Fixed to use Save instead of Update as default button text in popup edit form.
    • Fixed Grid performance degradation when editing in-cell grouped data.
  • MultiSelect:
    • Deselect selected item when user hit enter key.
  • NumericTextBox:
    • Fixed in regards to preventing stale cleared state from propagating on the next ChangeValue call.
  • Pivotgrid:
    • Fixed to make text label filtering case-insensitive for local data sources.
    • Fixed to remove field menus from configurator dictionary on dispose.
  • Scheduler:
    • Fixed to prevent appointment overflow feedback loop on window resize.
    • Fixed issue where Delete and Backspace keys bypass AllowDelete value.
    • Top offset should be proportionally calculated based on the exact start time of the appointment.
    • Appointments height should be proportional to their timespan.
  • TabStrip:
    • Fixed issue where ActiveTabIdChanged fires on app navigation.
    • Fixed exception on removing all visible tabs programmatically.
    • Fixed issue where scroll buttons do not show or hide on dynamic Tab add or remove.
  • TextBox:
    • Input type password should not render role attribute.
  • Tooltip:
    • When collision=fit the tooltip should not blink while cursor is over tooltip and anchor.
    • Corrected callout position when scrolling.
    • Fixed issue where theme colors: Info, Success, Warning, Error are missing.
  • Window:
    • Fixed issue where predefined actions OnClick handler is not triggered.
Telerik UI for Blazor 2026 Q2 (v14.0.0)May 20, 2026
Features
  • Common:
    • Introduced WebMCP support, making Telerik UI for Blazor components agent-ready out of the box.
    • Added compatibility with .NET 11 Preview 4.
    • Added new TaskBoard component.
    • Removed the ThemeColor.Dark and ThemeColor.Light usages from Button, Badge, DropDownButton, and SplitButton. Removed ThemeColor from Card, Window, Dialog, and popup edit settings components. Removed OverlayThemeColor from LoaderContainer. The appearance in these scenarios is determined by the active theme stylesheet.
  • Dependencies:
    • Updated DPL version to 2026.2.519.
    • Added support for Bootstrap theme version 14.1.0.
    • Added support for Classic theme version 14.1.0.
    • Added support for Default theme version 14.1.0.
    • Added support for Fluent theme version 14.1.0.
    • Added support for Material theme version 14.1.0.
    • Added support for Meridian theme version 14.1.0.
  • Button:
    • Added XS size option to button components.
  • Chart:
    • Added zoom and drag events.
    • The template syntax with literals is now deprecated, use the name of a JavaScript function that returns the value of the template instead.
  • Chat:
    • Added auto scroll threshold.
    • OnLoadMoreMessages StartIndex and EndIndex now contain the full rendered range instead of just the requested page.
  • Diagram:
    • Added resizable connections, resize handle offset, pannable scrollbars, connector dragging offset.
    • Added ExportToPdfAsync and ExportToPngAsync public methods.
    • Added draggable connections with drag event lifecycle.
  • Grid:
    • Allows setting smartbox mode.
  • Notification:
    • Added OnClose event.
  • PdfViewer:
    • Allows setting non-numeric value for zoom.
    • The component now uses pdf.js version 5.x.
  • QrCode:
    • Added UTF_8_NO_BOM value to QRCodeEncoding enum.
  • StockChart:
    • The template syntax with literals is now deprecated, use the name of a JavaScript function that returns the value of the template instead.
  • SvgIcon:
    • Added Variant property.
  • TabStrip:
    • Added OnTabDrop event.
    • Removed ActiveTabIndex and ActiveTabIndexChanged. Use ActiveTabId and ActiveTabIdChanged instead.
Fixes
  • Common:
    • Fixed to localize hardcoded aria-label strings in components.
  • Chat:
    • Suggestions shadow should be visible when scrolling is available.
    • Fixed issue where scroll to bottom button is not removed when having large message that does not fit inside the message list.
  • DropDownTree:
    • Fixed to align OnChange event behavior with DropDownList.
  • Grid:
    • Fixed nested sticky group header misplacement.
    • Fixed issue where the text flickers during typing in AI assistant.
    • Replaced getAbsoluteElementOffset with getBoundingClientRect for drag-to-select in Window.
  • Menu:
    • Fixed issue where Leaf items are not closing popup when HideOn is set to MenuHideEvent.Click.
  • Popup:
    • Fixed issue to clear stale bottom/maxHeight styles on reposition for auto-height popups.
    • Shrink width by scrollbar size to prevent horizontal page scroll at viewport edge.
  • Scheduler:
    • Use getBoundingClientRect for accurate slot metrics at non-100% OS scale.
    • Fixed issue where increasing the height of the SchedulerResourceGroupHeader cell causes misalignment of the Scheduler cells.
  • SplitButton:
    • Fixed to make screen readers read the items.
  • TabStrip:
    • Persisted tab should be rendered only upon activating, not when visible changed.
  • ToolBar:
    • Fixed to prevent arrow key interception when focused element is input or textarea.
Telerik UI for Blazor 2026 Q1 (v13.3.0)Apr 23, 2026
Features
  • Common:
    • Added SegmentedControl component.
    • Added compatibility with .NET 11 Preview 3.
  • Card:
    • Added CardImage Alt parameter.
  • Chat:
    • Added option to hide send button, it can be repositioned using the affix templates.
    • Added input prompt box affix templates.
    • Added endless scrolling.
  • Grid:
    • Added sticky groups functionality.
Fixes
  • Common:
    • telerik-blazor.js JSInterop file in Telerik UI for Blazor version 13.2.0 is missing some of the latest features and fixes.
  • AutoComplete:
    • Esc resets value when readonly.
  • ColorPicker:
    • Aria-controls references popup id instead of data-id.
  • ComboBox:
    • Ignore Esc reset when readonly.
  • DockManager:
    • Initially invisible pane cannot be docked once made visible.
  • DropDownButton:
    • Aria-controls must reference popup id not data-id.
  • FileManager:
    • ContextMenu Rename and Delete icons are missing.
    • An exception is thrown when inside a form.
  • Grid:
    • Does not autoscroll when reordering columns.
    • OnChange and OnBlur events do not fire on Tab key for editors in InCell edit mode.
    • Columns are not reset when changing column virtualization.
    • Virtual scrollbar is not updated on item height change.
  • MultiSelect:
    • Esc resets value when readonly.
  • NumericTextBox:
    • Allow typing in negative values for cultures with Unicode minus sign.
  • PdfViewer:
    • Stop loader when data is cleared.
  • TabStrip:
    • ActiveTabIdChanged fires on current tab reorder.
    • Tabstrip should not select first by default if active tab id is null.
    • Restore Tab Visibility entry in demoList.json.
  • Upload:
    • Request data is missing on chunk upload success.
Telerik UI for Blazor 2026 Q1 (v13.2.0)Apr 22, 2026
Features
  • Common (Dependencies):
    • Updated Telerik.Licensing version to 1.8.2.
    • Updated Document Processing Library (DPL) version to 2026.1.402.
    • Added support for Bootstrap theme version 13.1.1.
    • Added support for Classic theme version 13.1.1.
    • Added support for Default theme version 13.1.1.
    • Added support for Fluent theme version 13.1.1.
    • Added support for Material theme version 13.1.1.
Telerik UI for Blazor 2026 Q1 (v13.1.0)Mar 25, 2026
Features
  • Common
    • Added support for Bootstrap theme version 13.1.1.
    • Added support for Classic theme version 13.1.1.
    • Added support for Default theme version 13.1.1.
    • Added support for Fluent theme version 13.1.1.
    • Added support for Material theme version 13.1.1.
  • TabStrip
    • Added tabs drag reorder functionality.
    • Added closeable parameter to tabs.
    • Added tabs overflow modes.
    • Added pinnable and pinned parameters to tabs.
    • Added OnStateInit and OnStateChanged events.
    • Added GetState and SetState methods for state management.
    • Added Refresh method to force UI update and overflow recalculation.
    • Added TabStripSuffixTemplate parameter.
Fixes
  • Chat
    • Throws exception when sending a message with no OnSendMessage handler.
    • ChatSpeechToTextButtonSettings and ChatFileSelectSettings Rounded parameter should be Full by default.
  • ComboBox
    • Fix dropdown focus logic when filter matches non-TextField items.
    • Null TextField value displays model class name in the UI.
  • DropDownList
    • Add null guard in SelectItem to prevent InvalidCastException.
    • Does not preserve DateTime/TimeSpan ms precision.
    • Null TextField value displays model class name in the UI.
  • DropDownTree
    • Initial Value does not show if Data is loaded asynchronously.
    • ClearButton does not clear underlying value.
  • Editor
    • Sanitize html from insertHtml command.
  • Filter
    • Removing group or expression does not refresh UI.
  • Grid
    • Clicking below rows does not close the cell edit.
    • Smartbox is not shown after input blur.
    • FormatException when dropping in empty Grid in RTL mode.
    • JSDisconnectedException when browser tab or window is closed.
    • SelectionMarquee leaks in memory.
  • InlineAiPrompt
    • Popup shadows are missing.
    • Enter should trigger OnPromptRequest.
  • MultiColumnComboBox
    • Filter textbox in adaptive ActionSheet resets value during typing.
  • MultiSelect
    • Fix dropdown focus logic when filter matches non-TextField items.
  • PromptBox
    • Missing shadow in the start of the file attachment list.
    • When IsLoading is true, Action button icon should be animated.
    • PromptBoxSpeechToTextButtonSettings default Rounded should be Full, default ThemeColor should be null.
    • PromptBoxActionButtonSettings default FillMode should be null, default ThemeColor should be null.
  • Scheduler
    • View dropdown in toolbar disappears on very narrow screens.
  • Switch
    • Handle Enter key press to submit the containing form.
  • TileLayout
    • Keyboard navigation ignores Reorderable and Resizable values.
    • Keyboard reordering may cause negative order index.
    • Keyboard resizing may cause negative colspan.
    • Keyboard resizing doesn't work on Mac.
  • Tooltip
    • Error isParent is not a function when using adaptive dropdowns.
  • TreeView
    • Incorrect selection when toggling a node's checkbox.
Telerik UI for Blazor 2026 Q1 (v13.0.0)Major versionFeb 12, 2026
Features
  • Common
    • Added a new DropDownTree component.
    • Added a new SmartPasteButton component.
    • Added a new PromptBox component.
    • Added compatibility with .NET 11 Preview 1.
    • Updated rendering in dropdowns popup.
    • Breaking Changes - Default component styles are now implicit.
    • Updated Document Processing Library (DPL) version to 2026.1.210.
    • Added support for Bootstrap theme version 13.0.0.
    • Added support for Classic theme version 13.0.0.
    • Added support for Default theme version 13.0.0.
    • Added support for Fluent theme version 13.0.0.
    • Added support for Material theme version 13.0.0.
    • Updated Telerik Licensing to version 1.6.40.
    • Updated Telerik.SvgIcons and Telerik.FontIcons to version 4.8.0.
  • AiPrompt
    • Added a Title parameter in AIPromptSpeechToTextButtonSettings.
  • Chat
    • Added a scroll to bottom floating action button.
    • Added a failed message status.
    • Added IsFailedField.
    • Added the OnResendMessage event.
    • Added the MessageId property in ChatResendMessageEventArgs.
    • Added ТextAreaSettings.
    • Added a Placeholder parameter.
    • Added the OnRemove event in ChatFileSelectSettings.
    • Added the Title, Icon, FillMode, Rounded, Size ThemeColor parameters in ChatFileSelectSettings.
    • Added a Title parameter in ChatSpeechToTextButtonSettings.
    • Added a Title parameter in ChatSendMessageButtonSettings.
  • Diagram
    • Added support for data binding.
  • Grid
    • Added a new SmartBox tool.
    • Added the ability to customize the default Grid keyboard shortcuts.
  • InlineAiPrompt
    • Added a Title parameter in AIPromptSpeechToTextButtonSettings.
Fixes
  • FileManager
    • Shift selection does not work in List View (Thumbnails).
  • Grid
    • Fixed duplicate filter icon in Grid column menu.
    • Removes column menu icon styling on column sort.
    • ComponentLoaderContainer throws JSDisconnectedException.
  • PivotGrid
    • TreeView checkbox uncheck does not refresh the Configurator UI.
Telerik UI for Blazor 2025 Q4 (v12.3.0)Jan 21, 2026
Features
  • Common:
    • Added support for Bootstrap theme version 12.3.0.
    • Added support for Classic theme version 12.3.0.
    • Added support for Default theme version 12.3.0.
    • Added support for Fluent theme version 12.3.0.
    • Added support for Material theme version 12.3.0.
  • Diagram:
    • Updated tooltip rendering.
  • Grid:
    • Added GridToolBarSearchBoxTool Class parameter.
    • Added group sorting.
    • Allows grid AI features to work directly with Microsoft.Extensions.AI IChatClient service.
  • TreeList:
    • Added TreeListToolBarSearchBoxTool Class parameter.
Fixes
  • Chiplist:
    • Fixed issue where disabled chip can receive focus after remove operation.
  • DateInput:
    • Fixed issue where invalid state shows when pressing Clear and using Placeholder.
    • Fixed issue where Clear button shows even when Value is null.
  • Grid:
    • Fixed memory leak through detached DOM elements.
    • Fixed GridGroupableSettings parameters to be reactive.