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grep-3.1 released [stable]

Item posted by Jim Meyering <meyering> on Sun 02 Jul 2017 08:47:34 PM UTC.

This release comes with a nice improvement for many:
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:
http://gnu.org/s/grep/

For a summary of changes and contributors, see:
http://git.sv.gnu.org/gitweb/?p=grep.git;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[*]:
https://ftp.gnu.org/gnu/grep/grep-3.1.tar.xz
https://ftp.gnu.org/gnu/grep/grep-3.1.tar.xz.sig

Use a mirror for higher download bandwidth:
http://ftpmirror.gnu.org/grep/grep-3.1.tar.xz
http://ftpmirror.gnu.org/grep/grep-3.1.tar.xz.sig

[*] 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 keys.gnupg.net --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

==================================================================
NEWS

* 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.