newsGNU Core Utilities - News


coreutils-9.4 released [stable]

Item posted by Pádraig Brady <pixelbeat> on Tue 29 Aug 2023 03:16:59 PM UTC.

This is to announce coreutils-9.4, a stable release.
This is a stabilization release coming about 19 weeks after the 9.3 release.
See the NEWS below for a summary of changes.

There have been 162 commits by 10 people in the 19 weeks since 9.3.
Thanks to everyone who has contributed!
The following people contributed changes to this release:

  Andreas Schwab (1)      Jim Meyering (1)
  Bernhard Voelker (3)    Paul Eggert (60)
  Bruno Haible (11)       Pádraig Brady (80)
  Dragan Simic (3)        Sylvestre Ledru (2)
  Jaroslav Skarvada (1)   Ville Skyttä (1)

Pádraig [on behalf of the coreutils maintainers]

Here is the GNU coreutils home page:

For a summary of changes and contributors, see:;a=shortlog;h=v9.4
or run this command from a git-cloned coreutils directory:
  git shortlog v9.3..v9.4

Here are the compressed sources:   (15MB)   (5.8MB)

Here are the GPG detached signatures:

Use a mirror for higher download bandwidth:

Here are the SHA1 and SHA256 checksums:

  7dce42b8657e333ce38971d4ee512c4313b8f633  coreutils-9.4.tar.gz
  X2ANkJOXOwr+JTk9m8GMRPIjJlf0yg2V6jHHAutmtzk=  coreutils-9.4.tar.gz
  7effa305c3f4bc0d40d79f1854515ebf5f688a18  coreutils-9.4.tar.xz
  6mE6TPRGEjJukXIBu7zfvTAd4h/8O1m25cB+BAsnXlI=  coreutils-9.4.tar.xz

Verify the base64 SHA256 checksum with cksum -a sha256 --check
from coreutils-9.2 or OpenBSD's cksum since 2007.

Use a .sig file to verify that the corresponding file (without the
.sig suffix) is intact.  First, be sure to download both the .sig file
and the corresponding tarball.  Then, run a command like this:

  gpg --verify coreutils-9.4.tar.gz.sig

The signature should match the fingerprint of the following key:

  pub   rsa4096/0xDF6FD971306037D9 2011-09-23 [SC]
        Key fingerprint = 6C37 DC12 121A 5006 BC1D  B804 DF6F D971 3060 37D9
  uid                   [ unknown] Pádraig Brady <>
  uid                   [ unknown] Pádraig Brady <>

If that command fails because you don't have the required public key,
or that public key has expired, try the following commands to retrieve
or refresh it, and then rerun the 'gpg --verify' command.

  gpg --locate-external-key

  gpg --recv-keys DF6FD971306037D9

  wget -q -O- '' | gpg --import -

As a last resort to find the key, you can try the official GNU

  wget -q
  gpg --keyring gnu-keyring.gpg --verify coreutils-9.4.tar.gz.sig

This release was bootstrapped with the following tools:
  Autoconf 2.72c.32-cb6fb
  Automake 1.16.5
  Gnulib v0.1-6658-gbb5bb43a1e
  Bison 3.8.2


* Noteworthy changes in release 9.4 (2023-08-29) [stable]

** Bug fixes

  On GNU/Linux s390x and alpha, programs like 'cp' and 'ls' no longer
  fail on files with inode numbers that do not fit into 32 bits.
  [This bug was present in "the beginning".]

  'b2sum --check' will no longer read unallocated memory when
  presented with malformed checksum lines.
  [bug introduced in coreutils-9.2]

  'cp --parents' again succeeds when preserving mode for absolute directories.
  Previously it would have failed with a "No such file or directory" error.
  [bug introduced in coreutils-9.1]

  'cp --sparse=never' will avoid copy-on-write (reflinking) and copy offloading,
  to ensure no holes present in the destination copy.
  [bug introduced in coreutils-9.0]

  cksum again diagnoses read errors in its default CRC32 mode.
  [bug introduced in coreutils-9.0]

  'cksum --check' now ensures filenames with a leading backslash character
  are escaped appropriately in the status output.
  This also applies to the standalone checksumming utilities.
  [bug introduced in coreutils-8.25]

  dd again supports more than two multipliers for numbers.
  Previously numbers of the form '1024x1024x32' gave "invalid number" errors.
  [bug introduced in coreutils-9.1]

  factor, numfmt, and tsort now diagnose read errors on the input.
  [This bug was present in "the beginning".]

  'install --strip' now supports installing to files with a leading hyphen.
  Previously such file names would have caused the strip process to fail.
  [This bug was present in "the beginning".]

  ls now shows symlinks specified on the command line that can't be traversed.
  Previously a "Too many levels of symbolic links" diagnostic was given.
  [This bug was present in "the beginning".]

  pinky, uptime, users, and who no longer misbehave on 32-bit GNU/Linux
  platforms like x86 and ARM where time_t was historically 32 bits.
  Also see the new --enable-systemd option mentioned below.
  [bug introduced in coreutils-9.0]

  'pr --length=1 --double-space' no longer enters an infinite loop.
  [This bug was present in "the beginning".]

  shred again operates on Solaris when built for 64 bits.
  Previously it would have exited with a "getrandom: Invalid argument" error.
  [bug introduced in coreutils-9.0]

  tac now handles short reads on its input.  Previously it may have exited
  erroneously, especially with large input files with no separators.
  [This bug was present in "the beginning".]

  'uptime' no longer incorrectly prints "0 users" on OpenBSD,
  and is being built again on FreeBSD and Haiku.
  [bugs introduced in coreutils-9.2]

  'wc -l' and 'cksum' no longer crash with an "Illegal instruction" error
  on x86 Linux kernels that disable XSAVE YMM.  This was seen on Xen VMs.
  [bug introduced in coreutils-9.0]

** Changes in behavior

  'cp -v' and 'mv -v' will no longer output a message for each file skipped
  due to -i, or -u.  Instead they only output this information with --debug.
  I.e., 'cp -u -v' etc. will have the same verbosity as before coreutils-9.3.

  'cksum -b' no longer prints base64-encoded checksums.  Rather that
  short option is reserved to better support emulation of the standalone
  checksum utilities with cksum.

  'mv dir x' now complains differently if x/dir is a nonempty directory.
  Previously it said "mv: cannot move 'dir' to 'x/dir': Directory not empty",
  where it was unclear whether 'dir' or 'x/dir' was the problem.
  Now it says "mv: cannot overwrite 'x/dir': Directory not empty".
  Similarly for other renames where the destination must be the problem.
  [problem introduced in coreutils-6.0]

** Improvements

  cp, mv, and install now avoid copy_file_range on linux kernels before 5.3
  irrespective of which kernel version coreutils is built against,
  reinstating that behavior from coreutils-9.0.

  comm, cut, join, od, and uniq will now exit immediately upon receiving a
  write error, which is significant when reading large / unbounded inputs.

  split now uses more tuned access patterns for its potentially large input.
  This was seen to improve throughput by 5% when reading from SSD.

  split now supports a configurable $TMPDIR for handling any temporary files.

  tac now falls back to '/tmp' if a configured $TMPDIR is unavailable.

  'who -a' now displays the boot time on Alpine Linux, OpenBSD,
  Cygwin, Haiku, and some Android distributions

  'uptime' now succeeds on some Android distributions, and now counts
  VM saved/sleep time on GNU (Linux, Hurd, kFreeBSD), NetBSD, OpenBSD,
  Minix, and Cygwin.

  On GNU/Linux platforms where utmp-format files have 32-bit timestamps,
  pinky, uptime, and who can now work for times after the year 2038,
  so long as systemd is installed, you configure with a new, experimental
  option --enable-systemd, and you use the programs without file arguments.
  (For example, with systemd 'who /var/log/wtmp' does not work because
  systemd does not support the equivalent of /var/log/wtmp.)

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