First Release of EPUBCheck 3.0 Now Available

September 6, 2011

On September 6 an initial beta of the next version of the widely used validation tool for EPUB was made available by its open source developers. EPUBCheck 3.0, a Java library, now supports validation of EPUB 3 content. As well, the new release supports validation of "exploded" (unzipped) EPUB publications and single-file validation of individual elements of a publication (package file, navigation file, etc.). Fore more information about the new version see:

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