Validation: Fixed IllegalArgumentException by placing custom validation scenarios correctly in the Validation toolbar drop-down menu on the toolbar.
Author mode: Fixed possible unhandled error in Author visual editor when referencing invalid CSS URL in the XML document
DITA / DITAVAL Validation: Editing ditaval files when having DITA OT projects set as main files did not properly use validate and content completion.
Oxygen PDF Chemistry: Fix exception appearing when processing footnotes in rotated table cells.
Oxygen PDF Chemistry: Fix Matterhorn 11-001 “Note without ID” issue, improving overall PDF/UA-1 accessibility in PDF outputs.
WebHelp search: Fix the "stemmer is not a function" error triggered when the use.stemming parameter is enabled in WebHelp Responsive output.
Eclipse Plugin / DITA Maps Manager: Fixed an issue where Fast Create Topics was not responding in the Eclipse plugin.