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grep-2.26 released [stable]

From: Jim Meyering
Subject: grep-2.26 released [stable]
Date: Sun, 02 Oct 2016 19:27:57 -0700

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:

For a summary of changes and contributors, see:;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[*]:

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-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 --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


* 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

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

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