Startup: Avoid blocking Oxygen on open while computing the list of last opened files if there are files from inaccessible network drives in that list.
Options/Import DITAVAL: Importing a DITAVAL ("Import from DITAVAL..." in "Profiling/Conditional Text" preferences) with a DOCTYPE declaration failed because the XML catalogs were not being used.
Markdown: Properly display nested lists, indented with two Space characters, in the Preview area of a Markdown editor.
Toolbar configuration: The icons of the actions from the Markdown toolbar were not rendered in the toolbar configuration dialog box.
Mac/Author: Option+Shift+key can now be used to insert special characters.
DITA/Image Map Editor: The values of the 'format' attribute, set on links to various non-DITA resources used in image map sections, were not properly computed.
Author/Profiling Attributes: The quick find filter from the "Edit Profiling Attributes" dialog box is now case-insensitive, so it correctly presents all the elements that match the given filter.
Author/SVG/Form Controls: When clicking on external links from a form control that renders a SVG file, the external links are opened in the system application.
Author/MathML: MathML equations showed "Cannot display image (hover for details)", if the namespace declaration was not on the math (equation) element.
Author/XQueryUpdateOperation: The context element wasn't identified for a document that used namespace prefixes.
Eclipse/Author: Inserting a media object no longer leaves temporary files behind.
WebHelp/Compatibility: WebHelp 18.0 (plugin) could not be used with Oxygen 18.1. Updated the WebHelp transformation classpath to prefer the Lucene library distributed with the WebHelp plugin instead of the Lucene library that comes bundled with Oxygen.
System properties: The system property com.oxygenxml.editor.frameworks.url no longer worked to specify the frameworks location.
Mac/GUI: Disabled buttons did not use Retina icons.
XML Refactory: Editors corresponding to files modified by an operation from the XML Refactory tool were not updated after the operation was finished.
Attributes view: Fixed NullPointerException error that appeared when editing attributes in the Attributes view.
Author: Fixed NullPointerException error that appeared when building the menu corresponding to the document type associated to an opened file.
Elements view: Fixed NullPointerException error that appeared when trying to insert an element from the Elements view.