[jhowell]

EPUBCheck v4.2.3 is now available.

And now bug fix release 4.2.4.

Features
update HTML schemas from the HTML Checker (22fa3b1), closes #1111
downgrade PKG-012 (non-ASCII filenames) to USAGE (f368ee5), closes #1097 (thanks @slonopotamus!)
downgrade RSC-004 (cannot decrypt resource) to INFO (#1136) (e732068)
report empty title elements in XHTML Content Documents (#1135) (f115730), closes #1093
ARIA: allow doc-epigraph on 'section' and doc-cover on 'img' (84a0979)
update the XML ouput to the new JHOVE schema (0b346fd) (thanks @tledoux!)

Bug Fixes
allow 'doc-dedication' role on 'aside' elements (023b783)
allow 'doc-glossary' role on 'section' elements (12cda43)
avoid OutOfMemoryError when computing image size (929806b) (thanks @DocJM!)
fail gracefully when running on a non-EPUB file (#1134) (2083f05), closes #1050
allow 'a11y:certifierCredential' as a link (484786f), closes #1140
allow foreign namespaces in EPUB 2 SVGs (e3ffc37)

Other Improvements
improve reporting of invalid URL host parts (d2728ee), closes #1034 #1079
harmonize quotes usage in messages (#1132) (659ab76), closes #1071
add an Automatic-Module-Name entry to the jar manifest (ee06724), closes #1128 (thanks @io7m!)
deps upgrade commons-compress to v1.20 to remediate CVE-2019-12402 (928c26a), closes #1078
deps upgrade guava to v24.1.1 to remediate CVE-2018-10237 (cec01fe)