Released: Apr 22, 2026

Updates in V28.1 Build ID: 2026042105

Features

• Component Update: Updated the Netty HTTP library used in the Oxygen Publishing Engine Zendesk plugin to version 4.2.12.Final.
• WebHelp Context Sensitive Help: New optimizations allow you to get faster load times when using WebHelp context-sensitive help.

Fixes

• Linux: For Linux users, app launchers now correctly apply the Java VM options defined in your .vmoptions files.
• Validation: Adding custom actions to the Validation toolbar no longer fails with an error.

Released: Mar 18, 2026

Updates in V28.1

Features

S1000D

• Editing and Validation - You can now edit S1000D documents with schema-guided editing, content completion, and validation support: XML Schema-based validation, and currently BREX-based validation through conversion to Schematron.
• New File Templates - You can now create new S1000D data modules or publication modules for issues 4.0, 4.1, and 4.2 using the provided file templates.
• BREX Editing and Transformation - You can now edit BREX modules in the Text or Author page with content...

Released: Feb 3, 2026

Updates in V28.0 Build ID: 2026020208

Features

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

Released: Dec 24, 2025

Updates in V28.0 Build ID: 2025122408

Features

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

Released: Dec 17, 2025

Updates in V28.0 Build ID: 2025121615

Fixes

• 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...

Released: Nov 26, 2025

Updates in V28.0

Features

XSLT/XQuery

• XSLT and XQuery Transformation and Debugging with Saxon 12.9 - The built-in Saxon processor from Saxonica, used for XSLT and XQuery transformations and debugging, has been updated to version 12.9.
• Improved Editing for XSLT Text Value Templates in CDATA Sections - You can now use content completion and see syntax highlights when editing text value templates inside CDATA sections in XSLT documents, making it easier to write and review your templates.
• Rename XSLT Parameters in...

Released: Jul 1, 2025

Updates in V27.1 Build ID: 2025063013

Features

• macOS: The app can now ask for permission from user to use the microphone on macOS.
• EPUBCheck: Updated Apache Commons Compress to 1.26.0.
• Oxygen Publishing Engine: Updated Apache Commons Compress to 1.26.0.
• Diff Eclipse Plugin: Alligned Comparison API with changes from Eclipse 4.35.

Fixes

• macOS / Open Files: Added a partial fix for a situation where opening local files took a very long time on macOS due to a name resolution (network) issue for the local host.
• XProc Validation: Fixed an...

Released: Apr 15, 2025

Updates in V27.1 Build ID: 2025041508

Fixes

• Windows/OpenJDK JRE: Downgraded the bundled OpenJDK/Temurin JRE to version 17.0.11 due to stability issues with version 17.0.14.
• Diff Files dialog: Fixed a regression regarding 'Find/Replace' support in the 'Diff Files' dialog invoked from Git addon or Positron. 'Find/Replace' actions are now available via the usual shortcuts.
• Author mode / CSS Support: Fixed the floating toolbar to be displayed when single-clicking on an image in a DITA XML topic.
• DITA Keys: Fixed edge case to present...

Released: Mar 24, 2025

Updates in V27.1

Features

XSLT/XQuery

• Specify a Custom Parser in XSLT Transformations - Oxygen now supports configuring a custom parser when transforming documents using XSLT. This offers greater flexibility and control for specialized document types. For example, you can configure a parser for HTML documents in the saxon-config.xml file passed to Saxon EE/PE/HE, enabling more accurate transformations.

XProc

• Run AI-Enabled XSLT Stylesheets from XProc - The XProc Calabash engine in Oxygen now supports running...

Released: Dec 16, 2024

Updates in V27.0 Build ID: 2024121306

Features

• WebHelp tabs: Changed the default display of the elements marked with outputclass="wh-tabbed" attribute.

Fixes

• Windows/OpenJDK JRE: Downgraded the bundled OpenJDK/Temurin JRE to version 17.0.11 due to stability issues with version 17.0.13.
• Startup Error: Fixed an unhandled error issued at startup if plugin initialization delays the startup for more than 15 seconds.
• Refactoring / Preview: Preview dialog boxes that appear in certain contexts (e.g. XML refactoring, renaming resources) no...