Released: Jul 8, 2026

2026 Q2 (2026.2.708) 버젼 업데이트

기능

• Common:
  • Dependencies: Updated Telerik Document Processing Library (DPL) version to 2026.2.707.
• Chart (obsolete):
  • Breaking Changes: RadChart is now marked as [Obsolete]. This is the last release that includes the RadChart component. Its source code will be removed from the assembly in the next release. RadChart has been deprecated since Q3 2014 and does not support modern browsers. Migrate to RadHtmlChart for a fully supported, standards-based charting solution.
• DatePicker:
  • Invalid WAI-ARIA...

Released: May 20, 2026

2026 Q2 (2026.2.519) 버젼 업데이트

기능

• Common:
  • Added new SegmentedControl component.
  • Updated Telerik Document Processing Library (DPL) version to 2026.2.519.
• Editor:
  • ImageManager and RadFileExplorer now support .avif, .heif, .heic and .webp file extensions.
  • Added the ability to resize the table columns and rows with the mouse in the content area.
  • Improved the StripJavaScriptUris content filter.
• Input:
  • Added password textbox with show/hide feature.
• ListBox:
  • Allows lazy loading of images with design-time templates.
• Navigation:
  • Added...

Released: Apr 22, 2026

2026 Q1 (2026.1.421) 버젼 업데이트

기능

• Common:
  • Updated Telerik Licensing minimal required version to 1.8.2.
  • Updated Telerik Document Processing Library (DPL) version to 2026.1.402.
• AsyncUpload (Breaking Changes):
  • CSRF validation is now enabled by default for all upload requests. Applications that do not use ASP.NET Session State must add to appSettings. Applications using WebResourceSession handler are not affected.
  • The legacy and already obsolete IFrame, Silverlight and Flash upload modules have been removed. RadAsyncUpload now...

Released: Feb 25, 2026

2026 Q1 (2026.1.225) 버젼 업데이트

기능

• SmartPasteButton:
  • Added Visual Studio Designer support for RadSmartPasteButton.
  • Added RenderMode support for RadSmartPasteButton.

수정사항

• Security:
  • Addressed an insufficient entropy vulnerability.
  • External jQuery scripts are now loaded through a Telerik Handler that ensures correct load order and restricts sources to trusted CDN hosts.
• Common:
  • Fixed ReferenceError: kendo is not defined in version 2026 Q1.
• Editor:
  • Fixed issue where duplicate toolbars are rendered when ToolProviderID is used with...

Released: Feb 11, 2026

2026 Q1 (2026.1.211) 버젼 업데이트

기능

• 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...

Released: Jan 21, 2026

2025 Q4 (2025.4.1321) 버젼 업데이트

기능

• Common:
  • Updated Telerik Licensing minimal required version to 1.6.36.
  • Multiple accessibility and keyboard navigation improvements in multiple controls (RadListBox, OrgChart, TabStrip, Date/Time Pickers, MediaPlayer).
  • Telerik Document Processing: Introduced API for automatic file format detection.
• ListBox:
  • Added WAI-ARIA support for RadListBox.
• MediaPlayer:
  • Added Loop boolean property for video repeat support.
• OrgChart:
  • Added keyboard navigation and Section 508 accessibility support...

Released: Dec 10, 2025

2025 Q4 (2025.4.1210) 버젼 업데이트

기능

• What's New:
  • Introduced keyboard support for MediaPlayer and SiteMap.
• Editor:
  • Localization support for track changes and comments tools and dialogs.
  • Find functionality now highlights the word in RadEditor HTML mode.
  • Enable accessible labels (aria-label) for RadEditor toolbar buttons.
• MediaPlayer:
  • Added keyboard support.
• SiteMap:
  • Added keyboard support with arrow keys and tab.

수정사항

• AsyncUpload:
  • InputSize in RadAsyncUpload does not work in Lightweight.
• Editor:
  • StripJavaScriptUris filter...

Released: Nov 12, 2025

2025 Q4 (2025.4.1111) 버젼 업데이트

기능

• What's New:
  • Added new SpeechToTextButton control.
  • Introduced a Telerik UI for ASP.NET AJAX AI Coding Assistant that can be used through an MCP server.
  • Introduced a Telerik Document Processing AI Coding Assistant for the PDF Processing library, which can be used through an MCP server.
• Common:
  • Telerik Document Processing: CancelationTokenSourceFactory.CreateTokenSource(TimeSpan? timeSpan) now performs proper argument checking.
• Editor:
  • Added a new StripJavaScriptUris content filter, enabled by...

Released: Aug 26, 2025

2025 Q3 (2025.3.825) 버젼 업데이트

기능

• Chart (HTML):
  • Added support for patterns in SVG renderAs mode.
• OTP Input:
  • Added Visual Studio Designer support.

수정사항

• Common:
  • Fixed issue regarding hidden watermark and banner for valid trial licenses.
• Spell:
  • Fixed issue when spell-checking words containing an apostrophe.

Released: Aug 13, 2025

2025 Q3 (2025.3.812) 버젼 업데이트

기능

• Common:
  • Introduced new OTP Input component.
  • [Preview] Introduced a Telerik DPL AI Coding Assistant for the PDF Processing library that can be used through a GitHub Copilot extension or an MCP server.
  • Enhanced license popup with contextual error and trial messages.
• AsyncUpload:
  • Added MIME type mapping for .sql.
• HtmlChart:
  • Added support for series patterns in charts.
• PdfProcessing:
  • Introduced support for PDF/UA-1 compliance level.
  • Introduced Viewer Preferences to enable users to set...