Released: May 20, 2026

Updates in 2026 Q2 (2026.2.520)

Features

• Common:
  • Added Meridian Theme.
  • Added .NET 11 Preview 4 compatibility.
  • Added the ability to translate Kendo messages in all supported languages.
  • Loader Container overlay class changed from k-overlay-light to k-overlay.
  • Caret icons replaced with chevron icons.
  • Light and Dark theme colors removed globally.
  • Updated Telerik Document Processing Library (DPL) version to 2026.2.519.
  • Added support for Meridian Theme Package v14.1.0.
  • Added support for Fluent Theme Package v14.1.0.
  • Added support for Classic Theme Package v14.1.0.
  • Added support for Bootstrap Theme Package v14.1.0.
  • Added support for Default Theme Package v14.1.0.
  • Added support for Material Theme Package v14.1.0.
• Button:
  • Button Size option type changed to accept xsmall, and ComponentSize changed to ButtonSize.
• Chat:
  • Added Chat endless scrolling feature.
• Dialog:
  • Removed Dialog themeColor option.
• Form:
  • Added EditorTemplateViewFor in FormItemBuilder.
• Gantt:
  • Gantt view selector changed from ButtonGroup to SegmentedControl.
• Grid:
  • Added sticky groups.
  • Added row pinning.
• MultiViewCalendar:
  • MultiViewCalendar Footer() should accept a boolean parameter ASP.NET Core.
• PDFViewer:
  • PDFViewer Loader overlay class changed from k-overlay-light to k-overlay.
• Scheduler:
  • Scheduler view selector changed from ButtonGroup to SegmentedControl.
• Window:
  • Removed Window themeColor option.

Fixes

• Avatar:
  • Fixed issue so that Avatar image URL can be escaped.
• Chat:
  • Fixed Chat filesTemplate regression.
• ChipList:
  • Fixed issue where you were unable to prevent ChipList select event.
• ComboBox:
  • Fixed issue where the setOptions method of the ComboBox does not reset the height configuration.
• ContextMenu:
  • Fixed missing class k-menu-group on ContextMenu ul element.
  • Fixed issue where aria-expanded false attribute set to Menu items with no child items unexpectedly.
• DropDownButton:
  • Fixed issue where the DropDownButton API does not expose all configuration options for Popup customization.
• DropDownList:
  • Fixed JS error thrown by adaptive DropDownList on resizing browser from mobile to desktop width.
• Editor:
  • Fixed issue where Editor inside iframe resolves the wrong document object.
  • Fixed issue where export tool message is displayed as a tool title.
  • Fixed issue where Editor formatting creates redundant span element.
  • Fixed issue where Editor closes Source element tags.
• FileManager:
  • Fixed issue where FileManager filters folders after clearing the search.
• Filter:
  • Fixed issue where using keyboard navigation does not focus elements in main Filter toolbar.
• Gantt:
  • Fixed issue where Gantt events ending on 31st of December are not visible in Month and Year view in Firefox.
• Grid:
  • Fixed issue where Grid CaseSensitiveFiltering is not working with EF database.
  • Fixed issue where a JS error is thrown when initializing an initially hidden stacked-layout Grid.
  • Fixed wrong position of Grid drop clue indicator k-reorder-cue in RTL.
• Menu:
  • Fixed issue where aria-expanded false attribute set to Menu items with no child items unexpectedly.
  • Fixed issue where scrollable menu opens wrong menu on mobile.
• PdfViewer:
  • Fixed PdfViewer table of content.
• PivotGrid:
  • Fixed issue where an ampersand in column values prevents column from expanding.
• PropertyGrid:
  • Fixed issue where PropertyGrid throws JS error because appearance properties are serialized with null values.
• Scheduler:
  • Fixed issue where scrolling Scheduler when dragging events is not possible in RTL Scheduler.
• Signature:
  • Fixed issue when using the Signature in a Wizard the drawing line is being offset.
  • Fixed Kendo Signature span between signature line and pen/mouse cursor.
• Spreadsheet:
  • Fixed issue where you are unable to change Spreadsheet cell format via Format dialog.
  • Fixed issue where you are unable to translate the items in the DropDownButton for the Spreadsheet's sheet tabs.
  • Fixed issue where Spreadsheet filter icons do not respect rowHeight.
• TaskBoard:
  • Fixed issue where TaskBoard tasks cannot be reordered in the same column.
• TimeDurationPicker:
  • Fixed TimeDurationPicker label issues.
• Tooltip:
  • Fixed issue where Tooltip is not recalculating its dimensions when the target text is changed.
• Window:
  • Fixed incomplete typescript definitions for the Window title.