Breaking Changes

Updated on Jan 21, 2026

This article will list the breaking changes and how they can be fixed when upgrading to a specific version of the controls to the next one.

2025 Q4 (2025.4.1321)

• The UpdateSelection method of KeyboardSelectionHandler was removed. Use the MoveActiveEnd method instead.

• The ExpandDownLeft method of KeyboardSelectionHandler was removed. Use the MoveActiveEnd method instead.

• The ExpandTopRight method of KeyboardSelectionHandler was removed. Use the MoveActiveEnd method instead.

2025 Q2

• The format providers no longer need a reference to Telerik.Windows.Zip.dll.

• The MouseSelectionHandler(RadDocument document) obsolete constructor of the MouseSelectionHandler class was removed. Instead, use the MouseSelectionHandler(RadDocument document, IDocumentEditorPresenter presenter) constructor.

• The TextInsertedEventArgs(string text, bool shouldPersist, bool shouldStartNewComposition) obsolete constructor of the TextInsertedEventArgs class was removed. Instead, use the TextInsertedEventArgs(string text, InputEvents currentEvent, ImeLanguage imeLanguage) constructor.

• The RemoveCustomDictionary(ICustomWordDictionary customDictionary, CultureInfo culture) obsolete method of the DocumentSpellChecker class was removed. Instead, use the RemoveCustomDictionary(CultureInfo culture) method.

• The TextInsertedEventArgs(string text, bool shouldPersist, bool shouldStartNewComposition) obsolete constructor of the TextInsertedEventArgs class was removed. Instead, use the TextInsertedEventArgs(string text, InputEvents currentEvent, ImeLanguage imeLanguage) constructor.

2025 Q1

• The ShouldPersist and ShouldStartNewComposition properties of the TextInsertedEventArgs class are now obsoleted. Use the ImeLanguage and CurrentEvent properties instead.

• The TextInsertedEventArgs(string text, bool shouldPersist, bool shouldStartNewComposition) constructor of the TextInsertedEventArgs class is now obsoleted. Instead, use the TextInsertedEventArgs(string text, InputEvents currentEvent, ImeLanguage imeLanguage) constructor.

2022 R2 SP1

• The obsoleted method GetCurrentSelectedInline in the ImageContextCommandBase class is now removed. Use RichTextBoxCommandBase.GetSelectedInlineOrSelectCurrent instead.

2022 R2

• ShowFloatingBlockPropertiesDialogCommand now inherits from DrawingContextCommandBase instead of ImageContextCommandBase.