Windows/DITA Maps Manager: Avoided a Java VM crash on Windows 10 Creators Update (v10.0.15063) when using the DITA Maps Manager file browse dialogs to insert references (due to https://bugs.openjdk.java.net/browse/JDK-8179014).
e.g. Append child/Insert Before/Insert After > Reference.
Xerces/XML validation with XSD: Fixed bug with XML Schema uniqueness constraints no longer being reported when validating an XML document.
Project/Rename: Fixed a regression that prevented the change of letter case from directory and file names during renaming (Error message was "Unable to rename file. There is already a file with the same name in this location:").
Text mode: It was not possible to paste in Text mode content copied from a different instance of Oxygen.
DITA Maps Manager/Edit properties: When editing the properties, the "topicmeta" element was inserted before the "title" element (if present), resulting in invalid content.
DITA: Because of a bug in the DITA RelaxNG schema, DITA 1.3 RelaxNG-based topics were identified as DITA 1.2 topics and certain DITA 1.3 features did not work properly.
DITA: Fixed NullPointerException that appeared when editing attributes in a document with a DITA doctype that could not be correctly determined from a processing instruction.
Quick Assist/Quick Fix: Resolved a conflict between Quick Assist and Quick Fix actions that caused the Quick Assist action to no longer be presented when a Quick Fix was available.
New Dialog: : "File name" field was not updated when selecting different file templates.
New Dialog: Typing in the Save As combo box or in the File name text field didn't select the corresponding template type based on the provided file extension.
New Dialog/DITA: Sometimes the Title field remained disabled (title could not be changed) for DITA templates.
New Dialog/DITA: The panel where DITA-related information can be specified didn't appear for DITA templates without .properties files.
New Dialog/DITA: When a new DITA file was created from the Data Source Explorer view, the title specified in the dialog didn't appear in the newly created file.
XSLT/Validation: Only elements from the XSLT namespace are now subject to bad practice checks.
XSLT/Validation: The validation with Schematron rules for XSLT documents with documentation tags was broken if Allow foreign elements (allow-foreign) option was disabled in Preferences, XML > XML Parser > Schematron).
Saxon XQuery: XQuery 3.1 support is now available (default enabled) for the Saxon XQuery processor. This can be controlled in general options and in the transformation scenario transformer specific options.
CSS editor: Pressing Enter inside a CSS multi line comment before a '*' character or just in front of the comment itself, inserted a '*' on the same line before the cursor position.
JavaScript editing: When pressing Enter in a single line comment, an asterisk was inserted on the new line (as if it were a multi-line comment).
OS X/Author/Form controls: Interacting with the Oxygen XML Editor Workspace from a browser form control could result in a deadlock on OS X (because of https://bugs.openjdk.java.net/browse/JDK-8087465).
Eclipse/Start-up: Avoid a potential freeze on start-up that occurred in rare circumstances.
Eclipse/Author: Fixed "Replace All" issue that was blocking the Author editing mode in the Eclipse plugin when the searched string was a prefix of the replaced string.
Eclipse Plugin/DITA: Creating cross references using the Author action and keys, when the keys are retrieved from some implementations of an API keys manager, would sometimes cause Eclipse to freeze.
DITA/WebHelp Classic: Fixed a regression introduced in version 19.0 that broke the Index tab filter in DITA WebHelp Classic output.
WebHelp Responsive: Avoid copying locally remote referenced videos when publishing to WebHelp with the "fix.external.references.com.oxygenxml" parameter enabled.
XML Refactoring/Error: Solved a problem that was causing a "Fire should be on the AWT thread" error when performing an XML Refactoring operation that needed to refresh/update references between resources.