Critical/Security: Updated the Apache Log4j 2 library to version 2.16 to avoid the Log4Shell exploit. For more info see: CVE-2021-45046.

WebHelp Responsive/Security: Fixed an issue to prevent HTML injection in the search field's auto-complete drop-down list. For more info see SYNC-2021-072301

WebHelp Responsive: Sanitized the search input field to avoid HTML injection.

Oxygen PDF Chemistry: Fixed logger configuration to avoid the creation of oxygen.log file when running PDF transformations.

Oxygen PDF Chemistry: Fixed an issue where transformation failed when inline or block elements were present in a table caption.

WebHelp Responsive with Feedback/WebHelp Classic with Feedback: Fixed and issue where the comments were not displayed correctly.

Oxygen PDF Chemistry: Fixed an issue where tables with a caption were not rendered when located in a list item or another table.

WebHelp Responsive: Fixed an issue where keywords and index terms were not generated for DITA topics that declared such information.

DITA-OT PDF-CSS-HTML5 Plugin: It is now possible to set specific transformation parameters directly from a template file.

Publishing Engine: Fixed an issue where the CSS customization was not used when too many keywords were present in a document.

Oxygen PDF Chemistry: Fixed an accessibility issue that prevented the Adobe Acrobat Reader's Read Out Loud feature to read the PDF text.

Oxygen PDF Chemistry: Fixed an issue where various special characters in a MathML equation were not rendered properly. Now the default serif font can be changed to properly display special characters.

WebHelp Responsive/WebHelp Classic: Updated the jQuery library to version 3.5.1.

WebHelp Responsive: Fixed an issue where comments could not be located in the Feedback Comments Manager view for DITA Task or Concept topic types that have the chunk="to-content" attribute set in the DITA map.

Publishing Engine plugin: Fixed an issue where publishing failed when the fix.external.refs DITA-OT transformation parameter was set.

DITA Publishing to PDF Plugin: Fixed an issue where the show.changes.and.comments.as.changebars parameter had no effect when set to no.

Chemistry: Fixed a crash when using overflow wrap on an inline containing just an image.

Chemistry: An underscore at the end of a word was considered as hyphenation point and triggered an extra hyphen when not needed.

Chemistry: Fixed an issue where the empty lines from preformatted text were removed. Now, they are preserved in the output.

Chemistry: Fixed an issue where the table margins were ignored in some cases. Now, they are correctly applied.