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Add epubcheck.net to third-party tools

Status: Open.

#1670 In w3c/epubcheck;

· chocolatkey opened on Jul 4, 2026

Error on a11y:contactEmail

Status: Open.

#1669 In w3c/epubcheck;

· gregoriopellegrino opened on Jul 2, 2026

Report on XML file names if they should be XHTML

Status: Open.

#1668 In w3c/epubcheck;

· jenstroeger opened on Jun 29, 2026

Improve reporting of issue locations using element paths

Status: Open.

#1667 In w3c/epubcheck;

· jenstroeger opened on Jun 26, 2026

Does epubcheck produce an incomplete list of files for the same error?

Status: Open.

#1666 In w3c/epubcheck;

· jenstroeger opened on Jun 26, 2026

Attributes should not be allowed on package metadata element

status: ready for implemThe issue is ready to be implementedThe issue is ready to be implemented

type: false-negativeThis issue is about invalid content being incorrectly acceptedThis issue is about invalid content being incorrectly accepted

Status: Open.

#1665 In w3c/epubcheck;

· naglis opened on Jun 22, 2026

·  

Next maintenance release

Add support for EPUB for Archival purposes (EPUB/A)

Status: Open.

#1664 In w3c/epubcheck;

· jenstroeger opened on Jun 16, 2026

"Mimetype file should only contain the string "application/epub+zip" and should not be compressed" is misleading

Status: Open.

#1663 In w3c/epubcheck;

· pedz opened on Jun 15, 2026

Remote HLS video flagged as requiring fallback

Status: Open.

#1662 In w3c/epubcheck;

· mattgarrish opened on May 7, 2026

Add EPUB Fixer to Apps and Tools

Status: Open.

#1661 In w3c/epubcheck;

· davidshangyin974 opened on May 5, 2026

Validate text fragment locators (#:~:text=) in media overlay text src

Status: Open.

#1659 In w3c/epubcheck;

· richwaters opened on Apr 3, 2026

Latest EPUBCHECK vs Daisy ACE

Status: Open.

#1657 In w3c/epubcheck;

· LukeJanicki opened on Feb 10, 2026