Released: Nov 12, 2025

2025 Q4 (2025.4.1111) での更新項目

機能

• 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 default, to block dangerous JavaScript-based URI schemes in HTML attributes.
  • The StripDomEventAttributes content filter is now enabled by default to improve protection against XSS attacks.
• PdfProcessing:
  • Introduced extended digital signature support. You can now externally sign the document hash and also use a TimeStamp server.
  • Enabled Long-Term Validation (LTV).
  • Introduced API for externally signing the document hash.
  • Introduced support for writing a RadFixedPage containing widgets using the PdfPageStreamWriter.WriteContent() method.
  • Implemented Group 3, 2-D encoding for TIFF images (CCITTFaxDecode).
  • Import of documents with invalid Creation or Modification dates is now handled.
  • Provided support for the PAdES-BES signature standard.
  • Introduced support for encrypting documents with an AES-128 algorithm.
  • Provided support for /TR (Transfer Function) property of SMask.
  • Added Comfort and Extended levels for the ZUGFeRD invoice.
  • Introduced API for signing a document using a TimeStamp server.
  • Introduced timeout mechanism for TextFormatProvider, TextSearch, and TextPosition.
• SpreadProcessing:
  • Introduced Export to JSON file format.
  • Added support for querying and summarizing Workbook content using AI, enabling users to interact with and extract insights from Workbooks.

不具合の修正

• Common:
  • NullReferenceException in SkinRegistrar.GetAppSetting() when debugging with page.Site null.
  • Sys.InvalidOperationException for duplicate enum registrations in CDN combined resources.
• Editor:
  • Fixed issue where script execution occurs when switching between HTML to Design modes despite StripDomEventAttributes being enabled.
• Grid:
  • Fixed issue where active item style remains active while navigating through other items.
  • Fixed issue when sorting a grid with LightWeight render mode and exporting to Excel Biff format the sort expression is added to the header cells.
  • Fixed Grid Client-Side "BETWEEN" Filter support for DateTime values.
• HtmlChart:
  • Fixed Box Plot/Candlestick Chart Error: Uncaught (in promise) ReferenceError: series is not defined.
• ImageGallery:
  • Fixed issue where CurrentScrollPosition is not synchronized when ThumbnailsAreaSettings EnableZoneScroll="true" and ShowScrollbar="true".
• ListBox:
  • Fixed issue where transfer button needs to be clicked twice to make it have an effect in RadListBox with Transfer functionality.
• PdfProcessing:
  • Fixed issue in TextFormatProvider where extra character spacing occurs after export.
  • Fixed issue where registered fonts are lost when the code is executed on multiple threads.
  • Fixed issue where PDF/A-1a and PDF/A-2b fails VeraPdf verification when there is an element with opacity exported (StrokeAlphaConstant).
  • Fixed an OutOfMemoryException: Insufficient memory to continue the execution of the program when importing a document larger than 2.1 GB.
  • Fixed issue where ListBoxField selection is lost after import-export when the normal appearance contains MarkedContent with an empty properties dictionary.
  • Fixed issue where an InvalidCastException is thrown when importing a document with structure attribute that has a version number.
  • Fixed issue where InvalidCastException is thrown when importing a document with a structure element with an indirect reference to an integer value.
  • Fixed issue where an ArgumentException is thrown when exporting a document with a Unicode character in the Document Info.
  • Fixed issue where Stream is not disposed from PdfStreamWriter or PdfFileSource classes when the Dispose method is not called explicitly.
  • Fixed issue where a NullReferenceException is thrown when RecalculateContent is called on the VariableContent widget with OpenTypeFont.
  • Fixed issue where it would wrongly embed Standard Fonts when PdfComplianceLevel.None.
  • Fixed issue where the appearance of a form field button is lost after import-export operation.
  • Fixed issue where a solid line appears over the dashed lines when generating PDF from SVG diagram.
  • Fixed issue where SkiaImageFormatProvider: SMask.Matte is not applied correctly.
  • Fixed issue where an OutOfMemoryException is thrown when importing a large document with invalid cross-reference table.
  • Fixed issue where "object reference is not set to an instance of an object" is thrown when loading a PDF generated with PdfProcessing in PAC.
  • Fixed issue where a NullReferenceException is thrown when decoding the image with CCITTFaxDecode filter.
  • Fixed issue where merging a document with RadioButtonFields throws ArgumentException: "An item with the same key has already been added".
  • Fixed issue where Line width (LW) Graphic state property is lost on import.
  • Fixed issue where a KeyNotFoundException is thrown when importing a document with structure element that references a page that is not part of the page collection.
  • Fixed issue where hidden fields appear after merging PDF documents.
  • Fixed issue where encrypted documents with an AES-256 algorithm are opened as empty documents on Apple devices.
  • Fixed issue where creating a document from an SVG image with a CapPathRound adds unexpected lines.
  • Fixed issue where an ArgumentNullException is thrown when importing a restricted, AES-encrypted document.
  • Fixed issue where an ArgumentException is thrown when importing a document with duplicated filed names.
  • [WPF] Fixed issue where a KeyNotFoundException occurs when filing the fields in a specific document and saving it.
  • Fixed issue where an InvalidCastException is thrown and the form field is skipped when importing a document containing a single associated widget annotation (or terminal field) merged into the field dictionary.
  • Underline is not properly exported when the paragraph has exact line spacing and the font size is small.
  • The CIDToGIDMap value is exported as an indirect object when the value is a PdfString.
  • When recalculated, the TextBox widget appearance is exported with the wrong text properties.
  • Subscript text underline should be shifted down compared to normal text underline.
  • Fixed issue where an OutOfMemoryException is thrown when decoding large images with the CCITTFaxDecode filter.
  • [WPF] More pages than document pages count are rendered when some page tree node is added multiple times in its Parent Kids collection.
  • Fixed issue where the fields highlight is lost on import.
  • Fixed issue where fields are doubled according to ItextSharp after import/export. Update to itext version 9.2.0 or above to resolve this.
  • Fixed issue where field border appearance is lost during import-export of the document.
  • Fixed issue where Adobe Reader corrupts the umlaut/diacritics characters when typing in TextBox field exported from PdfProcessing.
• Slider:
  • Fixed issue where RadSlider last item label is not centered when SmallChange equals LargeChange.
• SpreadProcessing:
  • Fixed issue where DataBar conditional formatting with middle axis cannot be created.
  • Fixed ArgumentNullException: 'Value cannot be null. (Parameter 'key')' while importing a document with shared formulas and conditional formatting.
  • Fixed issue where ConditionalFormattingRange's Formattings collection is not correctly enumerated when there are rules with intermittent ranges.
• SpreadStreamProcessing:
  • Fixed issue where appending content to an existing workbook results in a corrupted document.
• WordsProcessing:
  • PdfFormatProvider: Tables should ignore the fixed preferred width with the value of 0.
  • Fixed SdtBuilderFailureException when importing a document with picture SDT around a paragraph with bookmark and picture.
  • Fixed issue where replace cannot match whole words with special characters at the start/end.
  • Fixed issue where left indents with floating point values are imported as 0.
  • Fixed InvalidOperationException when cloning a document containing fields spanning multiple paragraphs.
  • Fixed incorrect message when the found match is contained in several paragraphs.
  • Fixed issue where hyperlinks with fragment identifiers are not resolved correctly.
  • Fixed issue where exporting a Header/Footer with a content control with multiple paragraphs leads to an empty document.