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grep-3.1 released [stable]

From: Jim Meyering
Subject: grep-3.1 released [stable]
Date: Sun, 02 Jul 2017 13:38:48 -0700

This release comes with a nice improvement for average users:
grep '[0-9]' can be around 7 times faster in the multibyte
locales that most people use.  Thank you, Paul Eggert.

There have been 27 commits by 4 people in the 20 weeks since 3.0.

See the NEWS below for a brief summary.

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

  Eric Blake (1)
  Jim Meyering (17)
  Juan Manuel Guerrero (1)
  Paul Eggert (8)

Jim [on behalf of the grep maintainers]

Here is the GNU grep home page:

For a summary of changes and contributors, see:;a=shortlog;h=v3.1
or run this command from a git-cloned grep directory:
  git shortlog v3.0..v3.1

To summarize the 283 gnulib-related changes, run these commands
from a git-cloned grep directory:
  git checkout v3.1
  git submodule summary v3.0

Here are the compressed sources and a GPG detached signature[*]:

Use a mirror for higher download bandwidth:

[*] 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-3.1.tar.xz.sig

If that command fails because you don't have the required public key,
then run this command to import it:

  gpg --keyserver --recv-keys 7FD9FCCB000BEEEE

and rerun the 'gpg --verify' command.

This release was bootstrapped with the following tools:
  Autoconf 2.69.185-b502e
  Automake 1.99a
  Gnulib v0.1-1429-g9ae75d145


* Noteworthy changes in release 3.1 (2017-07-02) [stable]

** Improvements

  grep '[0-9]' is now just as fast as grep '[[:digit:]]' when run
  in a multi-byte locale.  Before, it was several times slower.

** Changes in behavior

  Context no longer excludes selected lines omitted because of -m.
  For example, 'grep "^" -m1 -A1' now outputs the first two input
  lines, not just the first line.  This fixes a glitch that has been
  present since -m was added in grep 2.5.

  The following changes affect only MS-Windows platforms.  First, the
  --binary (-U) option now governs whether binary I/O is used, instead
  of a heuristic that was sometimes incorrect.  Second, the
  --unix-byte-offsets (-u) option now has no effect on MS-Windows too.

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