Released: Mar 18, 2026

Updates in v2.5.16

Fixes

• Form Library:
  • Expressions: dateDiff function miscalculates day differences in certain cases.
  • Dynamic Panel: Nested Slider Scale triggers a validation error when a new entry is added.
  • Survey scrolls on startup if it contains a Dynamic Panel with panelsState: "firstExpanded".
  • onDynamicPanelValueChanging and onDynamicPanelValueChanged are not raised when a question's comment field is edited.
  • Expression validation is not triggered immediately when a dependent question value changes.
  • SurveyModel's getLocalizationJSON() method does not accept "en" as a locale.
• Survey Creator:
  • Property Grid: Deleting the "Maximum question width" property value saves an empty value instead of resetting it.
  • [Mobile Preview] File Upload: Confirmation dialog appears outside the viewport.
  • Logic tab: useElementTitles setting has no effect on the question filter dropdown.
  • Condition Editor interpolates the wrong question when another question has a matching valueName.
  • Calling survey.getLocalizationJSON(["default"]) produces a survey with an invalid locale: "default".