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grep-2.26 released [stable]

Item posted by Jim Meyering <meyering> on Mon 03 Oct 2016 02:26:43 AM UTC.

This is to announce grep-2.26, a stable release.

There have been 110 commits by 5 people in the 23 weeks since 2.25.
See the NEWS below for a brief summary.

Thanks to everyone who has contributed (both code and testing)!
The following people contributed code changes to this release:

Arnold Robbins (1)
Jim Meyering (29)
Norihiro Tanaka (23)
Paul Eggert (43)
Zev Weiss (14)

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=v2.26
or run this command from a git-cloned grep directory:
git shortlog v2.25..v2.26

To summarize the 145 gnulib-related changes, run these commands
from a git-cloned grep directory:
git checkout v2.26
git submodule summary v2.25
==================================================================

Here are the compressed sources and a GPG detached signature[*]:
http://ftp.gnu.org/gnu/grep/grep-2.26.tar.xz
http://ftp.gnu.org/gnu/grep/grep-2.26.tar.xz.sig

Use a mirror for higher download bandwidth:
http://ftpmirror.gnu.org/grep/grep-2.26.tar.xz
http://ftpmirror.gnu.org/grep/grep-2.26.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-2.26.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 2.69.168-2b48
Automake 1.99a
Gnulib v0.1-897-g65e6915

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

* Noteworthy changes in release 2.26 (2016-10-02) [stable]

** Bug fixes

Grep no longer omits output merely because it follows an output line
suppressed due to encoding errors. [bug introduced in grep-2.21]

In the Shift_JIS locale, grep no longer mistakenly matches in the
middle of a multibyte character. [bug present since "the beginning"]

** Improvements

grep can be much faster now when standard output is /dev/null.

grep -F is now typically much faster when many patterns are given,
as it now uses the Aho-Corasick algorithm instead of the
Commentz-Walter algorithm in that case.

grep -iF is typically much faster in a multibyte locale, if the
pattern and its case counterparts contain only single byte characters.

grep with complicated expressions (e.g., back-references) and without
-i now uses the regex fastmap for better performance.

In multibyte locales, grep now handles leading "." in patterns more
efficiently.

grep now prints a "FILENAME:LINENO: " prefix when diagnosing an
invalid regular expression that was read from an '-f'-specified file.