docx4j 11.5.3 and docx4j-ImportXHTML 11.5.3 are now available in Maven Central.
The main point of these releases is to migrate FontBox 3 (from v2). To make this possible we were waiting for FOP 2.11 (released this week) which is used for PDF generation via export-fo.
With FontBox 3 support in place, -ImportXHTML now uses the actively maintained https://github.com/openhtmltopdf/openhtmltopdf
Added also in docx4j is an option to use StAX for ...