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grep-3.10 released [stable]

Item posted by Jim Meyering <meyering> on Thu 23 Mar 2023 01:31:26 AM UTC.

This is to announce grep-3.10, a stable release,
fixing a bug with -P and \d. TL;DR, grep-3.9 would do this:

  $ LC_ALL=en_US.UTF-8 grep -P '\d' <<< ٠١٢٣٤٥٦٧٨٩

It should print nothing, like it has always done.
For more detail, see

Thanks to Paul Eggert for catching the \D variant and to Bruno Haible
for assiduously tending gnulib and for testing grep on so many
different systems.

There have been 12 commits by 2 people in the 17 days since 3.9.

See the NEWS below for a brief summary.

Thanks to everyone who has contributed!
The following people contributed changes to this release:

  Jim Meyering (8)
  Paul Eggert (4)

 [on behalf of the grep maintainers]

Here is the GNU grep home page:

For a summary of changes and contributors, see:;a=shortlog;h=v3.10
or run this command from a git-cloned grep directory:
  git shortlog v3.9..v3.10

Here are the compressed sources:   (2.7MB)   (1.7MB)

Here are the GPG detached signatures:

Use a mirror for higher download bandwidth:

Here are the SHA1 and SHA256 checksums:

  7d3d830703183532f0b66619f0b148827e86eda7  grep-3.10.tar.gz
  3nsh2OM0jqZWnG/Vc06QoxFp72JCnqPc5Ipvwd2F0mA=  grep-3.10.tar.gz
  b8413017681fcd6249e0d0fb9c78225944074f23  grep-3.10.tar.xz
  JO+ltZX7WnEAh5tRuIaKC7h6ccGD0CxMYCYzuIr2hVs=  grep-3.10.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 grep-3.10.tar.gz.sig

The signature should match the fingerprint of the following key:

  pub   rsa4096/0x7FD9FCCB000BEEEE 2010-06-14 [SCEA]
        Key fingerprint = 155D 3FC5 00C8 3448 6D1E  EA67 7FD9 FCCB 000B EEEE
  uid                   [ unknown] Jim Meyering <>
  uid                   [ unknown] Jim Meyering <>
  uid                   [ unknown] Jim Meyering <>

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 7FD9FCCB000BEEEE

  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 grep-3.10.tar.gz.sig

This release was bootstrapped with the following tools:
  Autoconf 2.72a.92-8db0
  Automake 1.16i
  Gnulib v0.1-5916-gf61570c0ef


* Noteworthy changes in release 3.10 (2023-03-22) [stable]

** Bug fixes

  With -P, \d now matches only ASCII digits, regardless of PCRE
  options/modes. The changes in grep-3.9 to make \b and \w work
  properly had the undesirable side effect of making \d also match
  e.g., the Arabic digits: ٠١٢٣٤٥٦٧٨٩.  With grep-3.9, -P '\d+'
  would match that ten-digit (20-byte) string. Now, to match such
  a digit, you would use \p{Nd}. Similarly, \D is now mapped to [^0-9].
  [bug introduced in grep 3.9]

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