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grep-2.17 released [stable]

Item posted by Jim Meyering <meyering> on Tue 18 Feb 2014 04:19:43 AM UTC.

This is to announce grep-2.17, a stable release.
This release is notable for its performance improvements:
we don't often see a 10x speed-up in a tool like grep.

There have been 19 commits by 8 people in the 7 weeks since 2.16.

See the NEWS below for a brief summary.

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

Aharon Robbins (1)
Benno Schulenberg (2)
Jim Meyering (7)
Mike Frysinger (1)
Norihiro Tanaka (3)
Paolo Bonzini (1)
Paul Eggert (3)
Pádraig Brady (1)

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=v2.17
or run this command from a git-cloned grep directory:
git shortlog v2.16..v2.17

To summarize the 26 gnulib-related changes, run these commands
from a git-cloned grep directory:
git checkout v2.17
git submodule summary v2.16

================================
Here are the compressed sources and a GPG detached signature[*]:
http://ftp.gnu.org/gnu/grep/grep-2.17.tar.xz
http://ftp.gnu.org/gnu/grep/grep-2.17.tar.xz.sig

Use a mirror for higher download bandwidth:
http://ftpmirror.gnu.org/grep/grep-2.17.tar.xz
http://ftpmirror.gnu.org/grep/grep-2.17.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-2.17.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 2.69.117-1717
Automake 1.99a
Gnulib v0.1-76-g497f4cd

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

* Noteworthy changes in release 2.17 (2014-02-17) [stable]

** Improvements

grep -i in a multibyte locale is now typically 10 times faster
for patterns that do not contain \ or [.

grep (without -i) in a multibyte locale is now up to 7 times faster
when processing many matched lines.

** Maintenance

grep's --mmap option was disabled in March of 2010, and began to
elicit a warning in January of 2012. Now it is completely gone.