Windows/JRE: Upgraded bundled JRE to 8u172 to avoid some issues
                regarding high CPU usage and JavaFX instability that are known to affect 8u162 on
                Windows.
          
            
DITA-OT Publishing: Fixed an issue where DITA to Open Document Format
                publishing did not display referenced images.
          
            
DITA-OT Publishing: DITA to RTF publishing no longer
                worked.
          
            
Schematron: Repaired editing in sch:let/@value.
          
            
XSLT 3.0 support: The namespace proposals for XSLT 3.0 are presented
                correctly after "xmlns:" insertion on the root element.
          
            
XSLT 3.0 support: Repaired the syntax highlight for Text Value
                Templates in elements with more than 8 parents.
          
            
WebHelp Responsive: The publishing templates will be refreshed when
                the "Templates" tab is not focused and a new template is saved inside one
                of the configured Publishing Templates Galleries.
          
            
WebHelp Responsive: First tap top level entry in the top menu on iOS devices just marks
                the topic as selected, instead of expanding its children.
          
            
WebHelp Responsive: Profiling attributes are transferred to output
                for Menu, Publication TOC, and Breadcrumb entries.
          
            
WebHelp Responsive: Improved page loading time.
						
           
            
DITA-OT: The "DITA Map PDF" transformation failed with
                "NoSuchMethodError: org.apache.fop.fonts.FontLoader.loadFont()".
          
            
DITA-OT: Fixed issues that appeared when publishing using older DITA Open
                Toolkit bundled with older Oxygen versions.
          
            
Schema Documentation: When generating the documentation in HTML format for an XML Schema,
                the index presents proper labels for the detected schemas (or
                schemata).
          
            
XSLT: Fixed an ArrayIndexOutOfBoundsException error that happened in
                the XSLT editor.
          
            
XSLT Editor: The '$' sign is not consumed anymore by the
                content completion mechanism when inserting an XSLT 3.0 parameter or variable
                reference after it.
          
            
Author/Quick Fixes: Solved quick fix execution issue in the Author
                page when the document contains tracked changes.
          
            
Quick Fixes: Solved quick fixes execution problem in the Author page when the
                document contains XInclude.
          
            
Quick Fixes: Added backward compatibility for the sqf:keep
                element.
          
            
API/DocBook: Re-added deprecated API methods to allow old DocBook and
                DITA frameworks (from version 18.1 for example) to continue working with Oxygen
                20.
          
            
WebHelp/Publishing Template: The XSLT extension points are not working when they are specified in
                a publishing template.
          
            
WebHelp Responsive: Fixed an issue with a local video when it's
                content is smaller than the browser player.
          
            
WebHelp Responsive: Fixed an issue when the Publication TOC is higher
                than the browser size and some entries from TOC where hidden.
          
            
oXygen WebHelp Plugin: Corrected the error message displayed in the
                console log when an invalid license is provided.
          
            
WebHelp Responsive: Fixed the links for the menu and ToC entries that
                are generated from topichead elements.
          
            
oXygen plugins: Actions contributed by a plugin for the Text editing mode, using the
                "documentProcessor" plugin extension, now have the action name properly
                displayed in the contextual menu.
          
            
WebHelp Responsive / Publishing Template / Save Template as: The
                directory referenced by the webhelp.custom.resources transformation scenario
                parameter is copied to the new template.
          
            
Saxon: Updated Saxon patch in oXygen to fix "Child particle
                xs:invalidName" issue:
                https://saxonica.plan.io/issues/3638.
          
            
Saxon/XSLT support: Transformation errors shown when an XSLT Stylesheet is compiled to a
                Saxon Extension File (SEF) are now cleaned between consecutive
                runs.