Released: Feb 11, 2026

Updates in 2026 Q1 (2026.1.211)

Features

• Common
  • Added a new SmartPasteButton component.
  • Telerik Licensing minimal required version has been updated to 1.6.40.
  • Integrated the latest Kendo UI scripts 2026.1.208 as a foundation for delivering new capabilities such as Smart Components.
  • Breaking Changes - Encapsulated the old embedded Kendo scripts to allow coexistence with externally referenced Kendo scripts on the same page. To disable the Embedded jQuery, you must set the EnableEmbeddedjQuery="false" and ExternaljQueryUrl="link_to_your_jQuery".
• DropDownTree
  • Introduced RTL support for RadDropDownTree.
• Editor
  • Added ARIA attributes to HTML mode textarea when EnableAriaSupport is set to enable.
• PdfProcessing
  • PdfStreamSigner: Introduced TimeStamp server support.
  • Improved PDF digital signing to comply with European Commission validation requirements.
• SearchBox
  • Added WAI-ARIA support in RadSearchBox.

Fixes

• DocumentProcessing
  • Incorrect annotation border array is rendered instead of being skipped.
  • File format detection misidentifies .dot files as .doc/.txt.
• Editor
  • Dialog titles for "Remove All Changes" and "Accept/Reject All Changes" are not fully localized.
  • The size of the Window in the Hyperlink Manager dialog in Bootstrap Classic skin is not tall enough.
  • The sizes of the Document Manager and Generate ID buttons in the Hyperlink Manager dialog in Bootstrap Lightweight is not correct.
  • The File Browser dialogs display scrollbars when AutoSize is enabled with LightweightRenderMode.
  • InsertLink dialog: Label "for" attribute case mismatch causes accessibility tools to report unlabeled control.
• ListBox
  • RadListBox with CheckBoxes scrolls to previously active item when checking items after scrolling.
• OTPInput
  • OTP input box is broken.
• PdfProcessing
  • Wrong transformation of glyph data.
  • SkiaImageFormatProvider: Blacked out images due to incorrectly resolved clipping.
  • SkiaImageFormatProvider: Black images are exported for certain pages.
  • An InvalidOperationException is thrown when parser incorrectly interprets delimiter characters within literal strings as structural tokens instead of string data.
  • Failing to load an image prevents the PDF document from loading properly.
  • CryptographicException is thrown when importing AES encrypted document with DocumentInfo.
• SpreadProcessing
  • LocalizableException is thrown after removing columns from a workbook with set Print Titles.
• TabStrip
  • ScrollBars not working after tab switch.
• Window
  • AutoSize shows a scroll in Chrome.
  • Scroll jumps to top when clicking dropdown controls with ShowContentDuringLoad="false" in Lightweight mode.
• WordsProcessing
  • NullReferenceException is thrown when exporting a document with custom geometry.