Release History

Telerik UI for ASP.NET AJAX 2025.3.812 (2025 Q3)

August 13, 2025

Common

NEW

• 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.

CHANGED

• Licensing: Enhanced license popup with contextual error and trial messages.

AsyncUpload

NEW

• Added MIME type mapping for .sql

ComboBox

FIXED

• "Loading..." placeholder text is not visible when using virtual scrolling.

DropDownTree

FIXED

• Clear button does not trigger PostBack with AutoPostBack="true".

Editor

FIXED

• Material Theme - Edit ribbon icon overlaps the text.
• RadEditor fails to render in IE and IE mode due to embedded ECMAScript syntax errors.
• ApplyClass wraps the selected image within a span tag instead of applying the class to the img itself.

Filter

FIXED

• Material Theme - Missing icons in RadFilter when placed inside RadPanelBar (incorrect icon font).
• Glow Theme - Filter input box is not visible.

Grid

FIXED

• GridDropDownColumn edit popup displays duplicate labels.

HtmlChart

NEW

• Added support for series patterns in charts.

Input

FIXED

• Uncaught TypeError: Cannot read properties of null (reading 'className') with debug=true.

Menu

FIXED

• Focused input element inside ContentTemplate loses focus when space key is pressed.

PdfProcessing

NEW

• Introduced support for PDF/UA-1 compliance level.
• Introduced Viewer Preferences to enable users to set PrintScaling and other properties.
• Introduced support for Tagged PDF, enabling improved accessibility, document structure and compatibility.
• Added support for handling documents with mismatched font Subtype and FontFile type.
• SkiaImageFormatProvider: Introduced support for exception handling mechanism during export.
• Changed the Pdf Version to 1.4 for documents with PDF/A1 compliance level.
• Introduced support for PDF/A-3a compliance level.
• Introduced support for PDF/A-2a compliance level.
• Introduced support for PDF/A-1a compliance level.
• Introduced support for the document info properties.
• Introduced mechanism allowing embedding of StandardFonts in PDF.

FIXED

• The StrokeAlphaConstant is not handled correctly when applied on a TextFragment.
• SkiaImageFormatProvider: Barcodes generated in a newly created document are not exported correctly.
• A NullReferenceException occurs when importing a document with MarkedContent.
• A NullReferenceException is thrown with OpenType font when applying MultipleSubstFormat1.
• A NotSupportedException triggered by BitReader when processing specific documents, where only integers smaller than 31 bits were supported.
• An InvalidCastException occurs while importing a PDF document when initializing the GradientShadingObject.
• InvalidCastException is thrown when importing a document containing an array of Functions.
• Wrong clipping order when exporting a document with MarkedContent leads to a missing content.

Scheduler

FIXED

• Agenda view clips calendar control when few or no events are shown.

SpreadProcessing

NEW

• Added support for setting culture individually per thread, enabling more flexible localization and formatting.

Spreadsheet

FIXED

• Clicking the Save button corrupts the spreadsheet document.

WordsProcessing

NEW

• Added support for querying and summarizing RadFlowDocument content using AI, enabling users to interact with and extract insights from RadFlowDocuments.

FIXED

• A NullReferenceException is thrown when inserting a document containing a table with a document variable having a line break (\n) in its value.
• An empty paragraph is not exported to PDF with the correct character properties.