https://github.com/colemanw/webform_civicrm/compare/7.x-4.18...7.x-4.19
Added autocad .dwg support and fixed multilingual alt/title on file entities. #2912875: add core file support for .dwg autocad files #2900830: file entity support for .dwg autocad files
Minor patch release to support Drupal 8.4 - See #2911855: Drupal 8.4 support