We are pleased to announce the latest production-ready release of EPUBCheck, version 4.2.5, providing support for checking conformance to the EPUB 3.2 family of specifications. This is a maintenance release. Full details and release notes are available at [https://github.com/w3c/epubcheck/releases/tag/v4.2.5.
We are also excited to launch the EPUBCheck website at https://www.w3.org/publishing/epubcheck/. Come here to download the latest release of EPUBCheck and find useful resources about it.