Build Notes for Version 28.0 of Oxygen XML Editor/XML Author/XML Developer/JSON Editor

Build ID: 2026020208

Tue, 3 Feb 2026 12:00:00 GMT

API/XML Refactoring: Adjusted the XML refactoring API to return a clear, appropriate message when attempting to retrieve parameters for an operation that does not define any parameter.

Editors: Fixed a "ConcurrentModificationException" error that could occur when switching between open editors.

Quick Assist: Fixed the "apply all quick fixes in bulk" action when invoked on resources specified by URLs with a protocol other than "file".

Diff/Merge: Improved merging of documents that contain tracked changes so that processing instructions and comments placed after the root element are now handled correctly.

XML Calabash: Fixed the parsing of Calabash options so that it no longer fails when encountering parameters declared as "typed".

Author/Spell Check: Fixed cases where words inside table cells were incorrectly reported as spelling errors.

Author/JSON Schema: Fixed a "ClassCastException" error that occurred occasionally when editing JSON Schema files in Author mode.

Oxygen PDF Chemistry: Fixed an issue where resetting a background image using "background-image: none;" caused an "image not found" error.

Oxygen PDF Chemistry: Improved the line break algorithm, especially for non-Latin punctuation marks (such as ideographic characters).

WebHelp Context-Sensitive Help: Resolved encoding issues for non-Latin file names in context-sensitive help mappings, ensuring that targets are correctly identified and matched regardless of character set.

WebHelp output: Corrected the rendering of zoomed images so that transparency is displayed properly in the output.

Build ID: 2025122408

Wed, 24 Dec 2025 09:00:00 GMT

DITA: Fixed an issue where publishing DITA topics containing syntax‑highlighted code blocks could cause the transformation to fail.

Build ID: 2025121615

Tue, 17 Dec 2025 09:00:00 GMT

Validation: Resolved an error that could occur when using custom validation scenarios. These scenarios are now correctly listed in the Validation toolbar drop-down menu.

Author mode: Improved stability in the Author visual editor by handling cases where an XML document references an invalid CSS URL.

DITA / DITAVAL Validation: Addressed an issue where editing DITAVAL files in projects with DITA OT project files set as the main files did not properly trigger validation or provide content completion suggestions.

Oxygen PDF Chemistry: Fixed an exception that could appear when generating PDFs containing footnotes inside rotated table cells, ensuring reliable PDF output in complex table layouts.

Oxygen PDF Chemistry: Improved PDF/UA-1 accessibility by ensuring that notes in PDF outputs are properly identified for assistive technologies.

WebHelp search: Fixed an error that could occur when the use.stemming parameter was enabled in WebHelp Responsive output.

Eclipse Plugin / DITA Maps Manager: Fixed a problem where the Fast Create Topics feature was unresponsive in the Eclipse plugin.

Build ID: 2025112606

Wed, 26 November 2025 15:30:00 GMT