diff --git a/NEWS b/NEWS
index 9bfebdf6..cb6e460e 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,70 @@
+20140722
+
+* {= perl expression =} can be used as replacement string. The
+  expression should modify $_. E.g. {= s/\.gz$// =} to remove .gz from
+  the string. This makes replacement strings extremely flexible.
+
+* Positional perl expressions (similar to {2}) are given as {=2 perl
+  expression=} where 2 is the position.
+
+* One small backwards incompatability: {1}_{2} will replace {2} with
+  the empty string if there is only one argument. Previously {2} would
+  have been left untouched.
+
+* Replacement strings can be defined using --rpl. E.g. parallel --rpl
+  '{.gz} s/\.gz$//' echo {.gz} ::: *.gz
+
+* The parenthesis around {= perl expression =} can be changed with
+  --parens.
+
+* --tmux will direct the output to a tmux session instead of
+  files. Each running jobs will be in its own window.
+
+* --halt 10% will stop spawning new jobs if 10% failed so far.
+
+* GNU Parallel was cited in: bammds: A tool for assessing the ancestry
+  of low depth whole genome data using multidimensional scaling (MDS)
+  http://bioinformatics.oxfordjournals.org/content/early/2014/06/28/bioinformatics.btu410.abstract
+
+* GNU Parallel was cited in: Molecular ferroelectric contributions to
+  anomalous hysteresis in hybrid perovskite solar cells
+  http://people.bath.ac.uk/aw558/publications/2014/arxiv_hysteresis_14.pdf
+
+* GNU Parallel was cited in: Energy Sorghum-a genetic model for the
+  design of C4 grass bioenergy crops
+  http://jxb.oxfordjournals.org/content/early/2014/06/20/jxb.eru229.short
+
+* GNU Parallel was cited in: Web-scale Content Reuse Detection
+  www.isi.edu/~johnh/PAPERS/Ardi14a.pdf
+
+* Tell your friends to sign up for the Webcast at 2014-08-20 covering
+  GNU Parallel: Data Science at the Command Line
+  http://www.oreilly.com/pub/e/3115
+
+* GNU Parallel all the things!
+  http://longwayaround.org.uk/notes/gnu-parallel-all-the-things/
+
+* Shell command composition and dispatch
+  http://lukeluo.blogspot.dk/2014/07/linux-virtual-console6-shell-command.html
+
+* Parallelising plink (or anything else) the easy way
+  http://chrisladroue.com/2012/03/parallelising-plink-or-anything-else-the-easy-way/
+
+* Easy and cheap cluster building on AWS
+  https://grapeot.me/easy-and-cheap-cluster-building-on-aws.html
+
+* Paralelizace běžných činností v konzoli pomocí GNU Parallel
+  http://www.abclinuxu.cz/clanky/paralelizace-beznych-cinnosti-v-konzoli-pomoci-gnu-parallel
+
+* [原] Ubuntu 下使用 parallel 命令的注意事项
+  http://blog.ailms.me/2014/06/28/ubuntu-with-parallel.html
+
+* 简单的并行, 可使用GNU parallel
+  http://jerkwin.github.io/2014/06/10/GNU-parallel/
+
+* Bug fixes and man page updates.
+
+
 20140622
 
 * --shebang and --shebang-wrap now works on FreeBSD.
diff --git a/README b/README
index 33e6d43e..5a6c8058 100644
--- a/README
+++ b/README
@@ -40,9 +40,9 @@ document.
 
 Full installation of GNU Parallel is as simple as:
 
-    wget http://ftpmirror.gnu.org/parallel/parallel-20140711.tar.bz2
-    bzip2 -dc parallel-20140711.tar.bz2 | tar xvf -
-    cd parallel-20140711
+    wget http://ftpmirror.gnu.org/parallel/parallel-20140722.tar.bz2
+    bzip2 -dc parallel-20140722.tar.bz2 | tar xvf -
+    cd parallel-20140722
     ./configure && make && make install
 
 
@@ -51,9 +51,9 @@ Full installation of GNU Parallel is as simple as:
 If you are not root you can add ~/bin to your path and install in
 ~/bin and ~/share:
 
-    wget http://ftpmirror.gnu.org/parallel/parallel-20140711.tar.bz2
-    bzip2 -dc parallel-20140711.tar.bz2 | tar xvf -
-    cd parallel-20140711
+    wget http://ftpmirror.gnu.org/parallel/parallel-20140722.tar.bz2
+    bzip2 -dc parallel-20140722.tar.bz2 | tar xvf -
+    cd parallel-20140722
     ./configure --prefix=$HOME && make && make install
 
 Or if your system lacks 'make' you can simply copy src/parallel
diff --git a/configure b/configure
index 98ebe44b..7ccc959f 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for parallel 20140711.
+# Generated by GNU Autoconf 2.69 for parallel 20140722.
 #
 # Report bugs to <bug-parallel@gnu.org>.
 #
@@ -579,8 +579,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='parallel'
 PACKAGE_TARNAME='parallel'
-PACKAGE_VERSION='20140711'
-PACKAGE_STRING='parallel 20140711'
+PACKAGE_VERSION='20140722'
+PACKAGE_STRING='parallel 20140722'
 PACKAGE_BUGREPORT='bug-parallel@gnu.org'
 PACKAGE_URL=''
 
@@ -1197,7 +1197,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures parallel 20140711 to adapt to many kinds of systems.
+\`configure' configures parallel 20140722 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1263,7 +1263,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of parallel 20140711:";;
+     short | recursive ) echo "Configuration of parallel 20140722:";;
    esac
   cat <<\_ACEOF
 
@@ -1337,7 +1337,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-parallel configure 20140711
+parallel configure 20140722
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1354,7 +1354,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by parallel $as_me 20140711, which was
+It was created by parallel $as_me 20140722, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2169,7 +2169,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='parallel'
- VERSION='20140711'
+ VERSION='20140722'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2741,7 +2741,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by parallel $as_me 20140711, which was
+This file was extended by parallel $as_me 20140722, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -2803,7 +2803,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-parallel config.status 20140711
+parallel config.status 20140722
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index a69d17f3..6e865872 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([parallel], [20140711], [bug-parallel@gnu.org])
+AC_INIT([parallel], [20140722], [bug-parallel@gnu.org])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES([
diff --git a/doc/release_new_version b/doc/release_new_version
index b78b6f4a..ed4ed536 100644
--- a/doc/release_new_version
+++ b/doc/release_new_version
@@ -245,6 +245,8 @@ New in this release:
 
 * --tmux will direct the output to a tmux session instead of files. Each running jobs will be in its own window.
 
+* --halt 10% will stop spawning new jobs if 10% failed so far.
+
 * GNU Parallel was cited in: bammds: A tool for assessing the ancestry of low depth whole genome data using multidimensional scaling (MDS) http://bioinformatics.oxfordjournals.org/content/early/2014/06/28/bioinformatics.btu410.abstract
 
 * GNU Parallel was cited in: Molecular ferroelectric contributions to anomalous hysteresis in hybrid perovskite solar cells http://people.bath.ac.uk/aw558/publications/2014/arxiv_hysteresis_14.pdf
diff --git a/packager/obs/home:tange/parallel/parallel.spec b/packager/obs/home:tange/parallel/parallel.spec
index 4220825a..6a20c79b 100644
--- a/packager/obs/home:tange/parallel/parallel.spec
+++ b/packager/obs/home:tange/parallel/parallel.spec
@@ -1,6 +1,6 @@
 Summary:	Shell tool for executing jobs in parallel
 Name: 		parallel
-Version: 	20140622
+Version: 	20140722
 Release: 	1
 License: 	GPL
 Group: 		Productivity/File utilities
diff --git a/src/niceload b/src/niceload
index cf7737b6..e0bcaa07 100755
--- a/src/niceload
+++ b/src/niceload
@@ -24,7 +24,7 @@
 use strict;
 use Getopt::Long;
 $Global::progname="niceload";
-$Global::version = 20140711;
+$Global::version = 20140722;
 Getopt::Long::Configure("bundling","require_order");
 get_options_from_array(\@ARGV) || die_usage();
 if($opt::version) {
diff --git a/src/parallel b/src/parallel
index 292ae432..f8454537 100755
--- a/src/parallel
+++ b/src/parallel
@@ -720,7 +720,7 @@ sub get_options_from_array {
 sub parse_options {
     # Returns: N/A
     # Defaults:
-    $Global::version = 20140719;
+    $Global::version = 20140722;
     $Global::progname = 'parallel';
     $Global::infinity = 2**31;
     $Global::debug = 0;
@@ -5279,7 +5279,6 @@ sub start {
 	# The eval is needed to catch exception from open3
 	if($opt::tmux) {
 	    $command = $job->tmux_wrap($command);
-#	    $command = tmux_wrap($command,$job->replaced());
 	}
 	eval {
 	    $pid = ::open3("<&IN", ">&OUT", ">&ERR", $ENV{SHELL}, "-c", $command) ||
@@ -5296,7 +5295,6 @@ sub start {
 	# The eval is needed to catch exception from open3
 	if($opt::tmux) {
 	    $command = $job->tmux_wrap($command);
-#	    $command = tmux_wrap($command,$job->replaced());
 	}
 	eval {
 	    $pid = ::open3("<&IN", ">&OUT", ">&ERR", $ENV{SHELL}, "-c", $command) ||
@@ -5308,7 +5306,6 @@ sub start {
     } else {
 	if($opt::tmux) {
 	    $command = $job->tmux_wrap($command);
-#	    $command = tmux_wrap($command,$job->replaced());
 	}
 	eval {
 	    $pid = ::open3(::gensym, ">&OUT", ">&ERR", $ENV{SHELL}, "-c", $command) ||
@@ -5348,20 +5345,18 @@ sub tmux_wrap {
     close $fh;
     unlink $tmpfile;
     my $visual_command = $self->replaced();
-    my $c = ::undef_as_empty($self->{'commandline'}->replace_placeholders(["\257<\257>"],0,0))."";
+    my $title = ::undef_as_empty($self->{'commandline'}->replace_placeholders(["\257<\257>"],0,0))."";
     # ascii 194-224 annoys tmux
-    $c =~ s/[\011-\016;\302-\340]//g;
+    $title =~ s/[\011-\016;\302-\340]//g;
 
     my $tmux;
     if($Global::total_running == 0) {
 	$tmux = "tmux new-session -s p$$ -d -n ".
-	    ::shell_quote_scalar($c);
+	    ::shell_quote_scalar($title);
 	print $Global::original_stderr "See output with: tmux attach -t p$$\n";
     } else {
-	$tmux = "tmux new-window -t p$$ -n ".::shell_quote_scalar($c);
+	$tmux = "tmux new-window -t p$$ -n ".::shell_quote_scalar($title);
     }
-#    $tmux = "tmux new-session -s p$$ -d true >/dev/null; ".
-#	"tmux new-window -t p$$ -n ".::shell_quote_scalar($c);
     return "mkfifo $tmpfile; $tmux ".
 	# Run in tmux
 	::shell_quote_scalar("(".$actual_command.');(echo $?$status;echo 255) >'.$tmpfile.";".
diff --git a/src/parallel.pod b/src/parallel.pod
index ac2db6b1..dcc1d7b1 100644
--- a/src/parallel.pod
+++ b/src/parallel.pod
@@ -244,7 +244,7 @@ directory (if any) and extension removed.
 To understand positional replacement strings see B<{>I<n>B<}>.
 
 
-=item B<{=>I<perl expression>B<=}>
+=item B<{=>I<perl expression>B<=}> (alpha testing)
 
 Replace with calculated I<perl expression>. B<$_> will contain the
 same as B<{}>. After evaluating I<perl expression> B<$_> will be used
@@ -257,7 +257,7 @@ The B<{=>I<perl expression>B<=}> must be given as a single string.
 See also: B<--rpl> B<--parens>
 
 
-=item B<{=>I<n> I<perl expression>B<=}>
+=item B<{=>I<n> I<perl expression>B<=}> (alpha testing)
 
 Positional equivalent to B<{= perl expression =}>. To understand
 positional replacement strings see B<{>I<n>B<}>.
diff --git a/src/parallel.texi b/src/parallel.texi
index c2b1c9a8..c54586ef 100644
--- a/src/parallel.texi
+++ b/src/parallel.texi
@@ -323,8 +323,8 @@ directory (if any) and extension removed.
 
 To understand positional replacement strings see @strong{@{}@emph{n}@strong{@}}.
 
-@item @strong{@{=}@emph{perl expression}@strong{=@}}
-@anchor{@strong{@{=}@emph{perl expression}@strong{=@}}}
+@item @strong{@{=}@emph{perl expression}@strong{=@}} (alpha testing)
+@anchor{@strong{@{=}@emph{perl expression}@strong{=@}} (alpha testing)}
 
 Replace with calculated @emph{perl expression}. @strong{$_} will contain the
 same as @strong{@{@}}. After evaluating @emph{perl expression} @strong{$_} will be used
@@ -336,8 +336,8 @@ The @strong{@{=}@emph{perl expression}@strong{=@}} must be given as a single str
 
 See also: @strong{--rpl} @strong{--parens}
 
-@item @strong{@{=}@emph{n} @emph{perl expression}@strong{=@}}
-@anchor{@strong{@{=}@emph{n} @emph{perl expression}@strong{=@}}}
+@item @strong{@{=}@emph{n} @emph{perl expression}@strong{=@}} (alpha testing)
+@anchor{@strong{@{=}@emph{n} @emph{perl expression}@strong{=@}} (alpha testing)}
 
 Positional equivalent to @strong{@{= perl expression =@}}. To understand
 positional replacement strings see @strong{@{}@emph{n}@strong{@}}.
diff --git a/src/sql b/src/sql
index ac7e2e40..15a044dc 100755
--- a/src/sql
+++ b/src/sql
@@ -566,7 +566,7 @@ $Global::Initfile && unlink $Global::Initfile;
 exit ($err);
 
 sub parse_options {
-    $Global::version = 20140711;
+    $Global::version = 20140722;
     $Global::progname = 'sql';
 
     # This must be done first as this may exec myself
diff --git a/src/sql.pdf b/src/sql.pdf
index 5a775645..566cba09 100644
Binary files a/src/sql.pdf and b/src/sql.pdf differ
diff --git a/testsuite/tests-to-run/parallel-local22.sh b/testsuite/tests-to-run/parallel-local22.sh
index 5cc8d3c2..f424f3f0 100755
--- a/testsuite/tests-to-run/parallel-local22.sh
+++ b/testsuite/tests-to-run/parallel-local22.sh
@@ -57,4 +57,7 @@ echo '### bug #42055: --pipe -a bigfile should not require sequential reading of
   parallel --pipepart -a /etc/passwd -N 1 should not be run
   parallel --pipepart -a /etc/passwd -l 1 should not be run
 
+echo '### --tmux test - check termination'
+  perl -e 'map {printf "$_%o%c\n",$_,$_}1..255' | parallel --tmux echo {} :::: - ::: a b
+
 EOF
diff --git a/testsuite/wanted-results/parallel-install b/testsuite/wanted-results/parallel-install
index 33c8875c..d67a34e0 100644
--- a/testsuite/wanted-results/parallel-install
+++ b/testsuite/wanted-results/parallel-install
@@ -5,6 +5,26 @@ test -d "parallel-00000000" || mkdir "parallel-00000000"
  (cd src && make  top_distdir=../parallel-00000000 distdir=../parallel-00000000/src \
      am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)
 make[0]: Entering directory `/home/tange/privat/parallel/src'
+pod2man --release='00000000' --center='parallel' \
+		--section=1 ./parallel.pod > ./parallel.1n \
+	&& mv ./parallel.1n ./parallel.1 \
+	|| echo "Warning: pod2man not found. Using old parallel.1"
+/bin/bash: pod2man: command not found
+Warning: pod2man not found. Using old parallel.1
+pod2html ./parallel.pod > ./parallel.htmln \
+	&& mv ./parallel.htmln ./parallel.html \
+	|| echo "Warning: pod2html not found. Using old parallel.html"
+/bin/bash: pod2html: command not found
+Warning: pod2html not found. Using old parallel.html
+rm -f ./pod2htm*
+pod2texi --output=./parallel.texi ./parallel.pod \
+	|| echo "Warning: pod2texi not found. Using old parallel.texi"
+/bin/bash: pod2texi: command not found
+Warning: pod2texi not found. Using old parallel.texi
+pod2pdf --output-file ./parallel.pdf ./parallel.pod --title "GNU Parallel" \
+	|| echo "Warning: pod2pdf not found. Using old parallel.pdf"
+/bin/bash: pod2pdf: command not found
+Warning: pod2pdf not found. Using old parallel.pdf
 make[0]: Leaving directory `/home/tange/privat/parallel/src'
 test -n "" \
 	|| find "parallel-00000000" -type d ! -perm -755 \
diff --git a/testsuite/wanted-results/parallel-local-10s b/testsuite/wanted-results/parallel-local-10s
new file mode 100644
index 00000000..e69de29b
diff --git a/testsuite/wanted-results/parallel-local22 b/testsuite/wanted-results/parallel-local22
index 7448e7a2..7b244484 100644
--- a/testsuite/wanted-results/parallel-local22
+++ b/testsuite/wanted-results/parallel-local22
@@ -73,3 +73,7 @@ parallel: Error: --pipepart is incompatible with --max-replace-args, --max-lines
 parallel: Error: --pipepart is incompatible with --max-replace-args, --max-lines, and -L.
   parallel --pipepart -a /etc/passwd -l 1 should not be run
 parallel: Error: --pipepart is incompatible with --max-replace-args, --max-lines, and -L.
+echo '### --tmux test - check termination'
+### --tmux test - check termination
+  perl -e 'map {printf "$_%o%c\n",$_,$_}1..255' | parallel --tmux echo {} :::: - ::: a b
+See output with: tmux attach -t p6522