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w3c
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epubcheck
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Closed
Latest EPUBCHECK vs Daisy ACE
Status: Open.
#1657
In w3c/epubcheck;
·
LukeJanicki
opened
on Feb 10, 2026
Resources referenced from script element are exempt
spec: EPUB 3.4
Impacting the support of EPUB 3.4
Impacting the support of EPUB 3.4
status: accepted
Ready to be further processed
Ready to be further processed
Status: Open.
#1654
In w3c/epubcheck;
·
mattgarrish
opened
on Jan 2, 2026
·
EPUB 3.4
Allow pageBreakSource as an unprefixed meta property
spec: EPUB 3.4
Impacting the support of EPUB 3.4
Impacting the support of EPUB 3.4
status: accepted
Ready to be further processed
Ready to be further processed
Status: Open.
#1653
In w3c/epubcheck;
·
mattgarrish
opened
on Jan 2, 2026
·
EPUB 3.4
Reflowable documents cannot be designated in spreads
spec: EPUB 3.4
Impacting the support of EPUB 3.4
Impacting the support of EPUB 3.4
status: accepted
Ready to be further processed
Ready to be further processed
Status: Open.
#1652
In w3c/epubcheck;
·
mattgarrish
opened
on Jan 2, 2026
·
EPUB 3.4
Roll layouts
spec: EPUB 3.4
Impacting the support of EPUB 3.4
Impacting the support of EPUB 3.4
status: accepted
Ready to be further processed
Ready to be further processed
Status: Open.
#1651
In w3c/epubcheck;
·
mattgarrish
opened
on Jan 2, 2026
·
EPUB 3.4
Outdated features
spec: EPUB 3.4
Impacting the support of EPUB 3.4
Impacting the support of EPUB 3.4
status: accepted
Ready to be further processed
Ready to be further processed
Status: Open.
#1650
In w3c/epubcheck;
·
mattgarrish
opened
on Jan 2, 2026
·
EPUB 3.4
Newly deprecated features in epub 3.4
spec: EPUB 3.4
Impacting the support of EPUB 3.4
Impacting the support of EPUB 3.4
status: ready for implem
The issue is ready to be implemented
The issue is ready to be implemented
Status: Open.
#1649
In w3c/epubcheck;
·
mattgarrish
opened
on Jan 2, 2026
·
EPUB 3.4
Docker build fails due to missing openjdk image
type: maintenance
The issue is related to a meta task (build system, dependency update, etc)
The issue is related to a meta task (build system, dependency update, etc)
Status: Open.
#1644
In w3c/epubcheck;
·
unknown321
opened
on Nov 8, 2025
·
Next maintenance release
Command for downloading and extracting of EPUBCheck does not work when used verbatim
status: accepted
Ready to be further processed
Ready to be further processed
type: docs
The issue is related to documentation
The issue is related to documentation
Status: Open.
#1643
In w3c/epubcheck;
·
martinpub
opened
on Oct 28, 2025
Adding AVIF to EPUB 3.4
spec: EPUB 3.4
Impacting the support of EPUB 3.4
Impacting the support of EPUB 3.4
status: ready for implem
The issue is ready to be implemented
The issue is ready to be implemented
type: spec
The issue is related to a Specification update
The issue is related to a Specification update
Status: Open.
#1642
In w3c/epubcheck;
·
iherman
opened
on Oct 6, 2025
·
EPUB 3.4
A png when passed thorugh the epubcheck, gets mistaken for JPEG, even tho the magic bytes are correct (when using xxd or hexdump)
status: accepted
Ready to be further processed
Ready to be further processed
type: false-positive
This issue is about valid content being incorrectly rejected
This issue is about valid content being incorrectly rejected
Status: Open.
#1641
In w3c/epubcheck;
·
Mathusan
opened
on Oct 2, 2025
·
Next maintenance release
Context menu item request
priority: low
To be processed when time allows
To be processed when time allows
status: in discussion
The issue is being discussed by the development team
The issue is being discussed by the development team
type: feature
The issue describes a new feature request
The issue describes a new feature request
Status: Open.
#1639
In w3c/epubcheck;
·
GeorgeKerscher
opened
on Sep 11, 2025
You can’t perform that action at this time.