Release History

Telerik UI for ASP.NET MVC 2026.3.811 (2026 Q3)

August 12, 2026

Common

NEW

• LLM Response Primitives
• Scheduler Redesign - Demos/Docs Update
• jQuery Upgrade tool
• Add kendoKeydown event for components with keyboard navigation

Dependencies

• Telerik Document Processing Library (DPL) version (2026.3.810)
• Fluent Theme Package (v14.5.0)
• Classic Theme Package (v14.5.0)
• Bootstrap Theme Package (v14.5.0)
• Default Theme Package (v14.5.0)
• Material Theme Package (v14.5.0)

ColorPicker

FIXED

• kendo.parseColor throws on oklch parse attempt (#25651)
• Error is throwns after destroy in ColorPicker (#8469)

ContextMenu

FIXED

• Unable to open ContextMenu of scrollable Grid (#26214)

DateInput

FIXED

• Unable to search/input selected months by typing first few letters in DatePicker (#8507)

DatePicker

FIXED

• Unable to search/input selected months by typing first few letters in DatePicker (#8507)

Drawer

NEW

• Improve developer experience of the Drawer component

DropDownTree

FIXED

• Unexpected tokens in DropDownTree with checkboxes after dataSource read

Editor

NEW

• Changing fontName or fontSize scrolls Inline Editor's content to the top
• Formatting Marks Not Displayed for Class Initialized Inline Editors

FIXED

• Kendo Inline Editor adds linebreak after typing first character in Firefox (#8489)
• Read-Only Editor clears pasted text, instead of not allowing paste at all (#8477)
• Cannot read properties of undefined (reading '_destroyResizeHandles')
• Dangerous Regex in the Editor's paste functionality
• Change event is fired when Inline Editor bound to Model (#8415)

Filter

FIXED

• Missing kendo.binder dependency of Filter

Gantt

FIXED

• View type disappears with different width

Grid

NEW

• Add k-sortable to Grid sortable columns
• Editor Navigation Prevented with Stacked DataLayoutMode Grid
• Grid Messages.Commands options are missing

FIXED

• Unable to open ContextMenu of scrollable Grid (#26214)
• Editing in stacked layout Grid wtih detailedTemplate throws an error (#8500)
• A row cannot be placed at last position in Grid with reorderable row enabled (#8490)
• Tabbing on a Grid with locked column does not focus the next input
• Unable to localize Action Buttons of Adaptive Grid (#8420)
• Incorrect recalculation of column widths in footer cells in the Kendo Grid component after resizing columns (#8395)

ListBox

FIXED

• ListBox setOptions does not allow setting multiple selectable items (#26113)

MultiSelect

FIXED

• MultiSelect - removing selected tag does not grab focus (#8441)

Breaking Changes

• SelectAll option for MultiSelect

NumericTextBox

FIXED

• NumericTextBox Rejects Valid Decimal Values (#8473)

Scheduler

NEW

• Readonly Events
• Scheduler calendar is not oriented correctly out of the box when direction of the wrapper is set to RTL

FIXED

• Timeline view with RTL does not render the events correctly after dragging (#8509)
• Class 'k-focus' is occasionally not cleared when changing views (#8493)
• In selectable RTL Scheduler timeline jumps on clicking a timeslot (#8479)

Breaking Changes

• Apply new table header rendering
• Redesign Desktop Recurrence Editor
• Introduce "More Events" Popover in Month and Year views
• Responsive Desktop Events
• Redesign Add/Edit dialogs
• Improve Scheduler Responsive Desktop Toolbar
• Scheduler Redesign

SegmentedControl

NEW

• SegmentedControl Left and Right Arrow keyboard navigation support

Spreadsheet

FIXED

• Spreadsheet columns cannot be resized
• Custom editor popup in spreadsheet closes immediately after opening (#8476)
• Event handlers execution from clipboard paste in spreadsheet (#25590)
• Applying freeze panes in Spreadsheet after scrolling resets scroll position and prevents navigation (#8436)

Window

FIXED

• Window's containment with height as percent can break resizing