I am looking into this exception.
8.0.0 has been synced into bionic already, but it's still stuck in
bionic-proposed most probably because of the ABI bump - I suppose we
need to rebuild cups-filters-core-drivers from cups-filters as it's
still depending on libqpdf18 which might cause these issues. I'll look
Do you have an ETA on when 8.0.2 could happen?
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Status in qpdf package in Ubuntu:
I am requesting an exception to the FeatureFreeze for Ubuntu 18.04
LTS. I would like qpdf 8.0.1 to be synced from debian.
I am the upstream author of qpdf and the debian maintainer. I released
8.0.0 with the explicit goal of beating the 18.04 feature freeze. It
was released and uploaded to debian on February 25. Then I realized
8.0.1 a few days later (March 4) with a few very small additional
enhancements. I came to learn that 8.0.0 was not synced before the
deadline, so I am requesting a freeze exception. You can find 8.0.0 in
debian testing and 8.0.1 in unstable. I was planning on releasing
8.0.2 with another one-line change. The changes from 8.0.0 to 8.0.2
are not fixes to bugs in 8.0.0. Both releases include small additional
enhancements. For now, I am request sync of 8.0.1, which is the latest
version in debian.
The qpdf package has a very strong record of stability. The principle
changes in 8.0.0 were source-compatible but non-binary-compatible
changes to support more advanced handling of PDF files at the lexical
layer. These changes are required to support some Google summer of
code work toward handling PDF forms in files being printed. qpdf is
used as the backend for cups-filters. Additionally, qpdf 8.0.0
includes fixes that allow a wide range of incorrect PDF files that
break in 7.1.1 to be processed as it handles more cases as recoverable
rather than fatal errors. 8.0.1 adds the additional enhancement of
allowing PDF files with checksum errors in their compressed data to be
The risk to allowing qpdf 8 into 18.04 is minimal as qpdf has a very
thorough regression test suite, and all the changes are backward
compatible at the source level. The advantages of having qpdf 8 in
18.04 include handling of a wider range of incorrect files for
printing and opening the door to a backport of the form handling
capabilities in cups-filters should that be desired.
If possible, I would like to request an exception for 8.0.2, which I
have not yet released. 8.0.2 includes only one small additional
enhancement: better recovery of files that have loops in the cross
reference table. Most readers can't handle such files well anyway, but
evince can, and this would enable successful printing of such files
from evince. It's a one line change + test suite updates. I have not
released 8.0.2 but could do so at any time.
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