2026
28.0Version 28.0 - November 26, 2025
- 27.1
Version 27.1 - March 24, 2025
2025
27.0Version 27.0 - November 27, 2024
- 26.1
Version 26.1 - March 25, 2024
2024
26.0Version 26.0 - October 11, 2023
- 25.1
Version 25.1 - March 16, 2023
2023
25.0Version 25.0 - October 13, 2022
- 24.1
Version 24.1 - March 7, 2022
2022
24.0Version 24.1 - March 7, 2022
Version 24.0 - October 18, 2021- 23.1
Version 23.1 - March 4, 2021
2021
23.0Version 23.1 - March 4, 2021
Version 23.0 - November 19, 2020- 22.1
Version 22.1 - May 19, 2020
What's New in Oxygen Publishing Engine 26.0
October 11, 2023
Oxygen Publishing Engine version 26 encompasses the improvements and additions implemented in Oxygen XML WebHelp and Oxygen PDF Chemistry. This latest release offers some exciting advanced search features for WebHelp publishers, new customization possibilities for PDF publishers, and the bundled DITA-OT distribution was updated to version 4.1.1. Various other component updates and bug fixes were implemented as well.
There are changes in:
DITA-OT
Bundled DITA-OT Updated to Version 4.1.1
The bundled DITA-OT distribution was updated to version 4.1.1, which contains:
- The latest grammar files for the upcoming DITA 2.0.
- The latest grammar files for the upcoming LightWeight DITA standard.
- A new PDF (XSL-FO based) theme plugin (com.elovirta.pdf).
- Improvements and bug fixes for the org.lwdita Markdown conversion plugin.
- Lots of other small improvements and bug fixes.
WebHelp Output
Semantic Search
A Semantic search is a data searching technique that delivers
more accurate results by understanding the real intent behind the search and providing an
enhanced user experience. Oxygen XML WebHelp now supports semantic
searches to help produce more relevant search results. This feature requires an
integration with the OpenAI platform by specifying an API key.
Faceted Search
A Faceted search allows users to refine their search results
by applying multiple filters that correspond to different properties or "facets" of the
information being sought. WebHelp users can select one or more of these facets, and the
search engine will return only the results that match all selected facets. For more
details, see User
Guide Topic: How to Configure Faceted Search in WebHelp Output.
Search or Filter Topics by Labels
A new Insert Label action is available in Oxygen that can be
used to insert a special label keyword in the prolog of a topic. These labels are then
displayed in the WebHelp Responsive output. They are useful when performing searches in
the output. For example, you can easily search for topics with the same label by simply
clicking on the label presented in the WebHelp Responsive output. For more details, see
User
Guide Topic: How to Add Searchable Labels in WebHelp Output.
Topic Breadcrumb Now Displayed in the Search Results Page
A topic's ancestor topics are presented in a breadcrumb within the search
results page, making it easier understand the context of the topic. This is especially
helpful if the search results seem to show duplicates, but they are actually similar
topics that are located in different parts of the map.
Advanced Search Queries
Oxygen XML WebHelp integrates the Oxygen Feedback
Search Engine, which supports advanced query syntax that allows users to create
more complex, flexible, and useful queries to help make the search results more precise.
Some examples of these supported advanced queries include phrase
searches, regular expression searches, and proximity
searches.
PDF Output
Control the Top and Bottom Margins of an Element
It is now possible to set the
width property on page
margin boxes. These margin boxes define rectangular areas placed in the
margins that surround the content of the page and may be used to display static
CSS-generated content (such as page numbers, publication titles, or other artwork). For
more details, see Chemistry
User Manual: Page Margin Boxes.XPath Expressions Evaluated in SVG Templates
A new
expand.xpath.in.svg.templates parameter was added (and
it is enabled by default). It evaluates XPath expressions that have a format of
${expression} in SVG template files (with a file extension of
.template.svg). Thus, you can leverage XPath expressions to dynamically
populate and modify elements in your SVG templates, resulting in more personalized and
tailored PDF outputs. For more details, see Chemistry User Manual: SVG Templates.Component Updates
DITA OT 4.1.1
The bundled DITA Open Toolkit version was updated to version
4.1.1.
Apache Batik 1.17
Updated the Apache Batik toolkit to version 1.17.
Apache FOP 2.9
Updated the Apache FOP library (integrated in Oxygen PDF Chemistry) to version
2.9.
Lucene 9.7.0
Updated the Lucene libraries to version 9.7.0.
Deprecated Support for DocBook WebHelp Classic
The DocBook WebHelp Classic transformation scenario has been
marked as deprecated and may be removed in a future major version.




