Released: May 20, 2026

2026 Q2 (v14.0.0) での更新項目

機能

• 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.

不具合の修正

• 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 missplacement.
  • Fixed issue where the text flickers during typing in AI assitant.
  • 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.