diff --git a/src/parallel.pdf b/src/parallel.pdf
index 46c8edba..e18bd263 100644
Binary files a/src/parallel.pdf and b/src/parallel.pdf differ
diff --git a/src/parallel.pod b/src/parallel.pod
index 067e049b..7f4f2add 100644
--- a/src/parallel.pod
+++ b/src/parallel.pod
@@ -168,7 +168,7 @@ The replacement string B<{#}> can be changed with B<--seqreplace>.
 To understand replacement strings see B<{}>.
 
 
-=item B<{%}> (alpha)
+=item B<{%}> (alpha testing)
 
 Job slot number. This replacement string will be replaced by the job's
 slot number between 1 and number of jobs to run in parallel. There
@@ -1500,7 +1500,7 @@ The sshloginfile '-' is special, too, it read sshlogins from stdin
 (standard input).
 
 
-=item B<--slotreplace> I<replace-str>
+=item B<--slotreplace> I<replace-str> (alpha testing)
 
 Use the replacement string I<replace-str> instead of B<{%}> for
 job slot number.
diff --git a/src/parallel.texi b/src/parallel.texi
index 725110f6..c165be59 100644
--- a/src/parallel.texi
+++ b/src/parallel.texi
@@ -244,8 +244,8 @@ The replacement string @strong{@{#@}} can be changed with @strong{--seqreplace}.
 
 To understand replacement strings see @strong{@{@}}.
 
-@item @strong{@{%@}} (alpha)
-@anchor{@strong{@{%@}} (alpha)}
+@item @strong{@{%@}} (alpha testing)
+@anchor{@strong{@{%@}} (alpha testing)}
 
 Job slot number. This replacement string will be replaced by the job's
 slot number between 1 and number of jobs to run in parallel. There
@@ -1671,8 +1671,8 @@ The sshloginfile '.' is special, it read sshlogins from
 The sshloginfile '-' is special, too, it read sshlogins from stdin
 (standard input).
 
-@item @strong{--slotreplace} @emph{replace-str}
-@anchor{@strong{--slotreplace} @emph{replace-str}}
+@item @strong{--slotreplace} @emph{replace-str} (alpha testing)
+@anchor{@strong{--slotreplace} @emph{replace-str} (alpha testing)}
 
 Use the replacement string @emph{replace-str} instead of @strong{@{%@}} for
 job slot number.
diff --git a/src/parallel_tutorial.1 b/src/parallel_tutorial.1
index 050d00c0..1d24ab9f 100644
--- a/src/parallel_tutorial.1
+++ b/src/parallel_tutorial.1
@@ -124,7 +124,7 @@
 .\" ========================================================================
 .\"
 .IX Title "PARALLEL_TUTORIAL 1"
-.TH PARALLEL_TUTORIAL 1 "2014-05-31" "20140522" "parallel"
+.TH PARALLEL_TUTORIAL 1 "2014-06-04" "20140522" "parallel"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -140,8 +140,8 @@ love you for it.
 .SH "Prerequisites"
 .IX Header "Prerequisites"
 To run this tutorial you must have the following:
-.IP "parallel >= version 20130814" 9
-.IX Item "parallel >= version 20130814"
+.IP "parallel >= version 20140622" 9
+.IX Item "parallel >= version 20140622"
 Install the newest version with:
 .Sp
 .Vb 1
@@ -483,8 +483,8 @@ Output (the order may be different):
 .Ve
 .SS "Replacement strings"
 .IX Subsection "Replacement strings"
-\fIThe 6 replacement strings\fR
-.IX Subsection "The 6 replacement strings"
+\fIThe 7 replacement strings\fR
+.IX Subsection "The 7 replacement strings"
 .PP
 \&\s-1GNU\s0 Parallel has several replacement strings. If no replacement
 strings are used the default is to append {}:
@@ -1137,7 +1137,7 @@ Output:
 with half a line of another job. That has happend in the second line,
 where the line '4\-middle' is mixed with '2\-start'.
 .PP
-To avoid this use \-\-linebuffer (which, however, is much slower):
+To avoid this use \-\-linebuffer:
 .PP
 .Vb 1
 \&  parallel \-j2 \-\-linebuffer \*(Aqprintf "%s\-start\en%s" {} {};sleep {};printf "%s\en" \-middle;echo {}\-end\*(Aq ::: 4 2 1
@@ -2675,4 +2675,4 @@ If \s-1GNU\s0 Parallel saves you money:
 .IP "\(bu" 2
 (Have your company) donate to \s-1FSF\s0 https://my.fsf.org/donate/
 .PP
-(C) 20130822 Ole Tange GPLv3
+(C) 20140622 Ole Tange GPLv3
diff --git a/src/parallel_tutorial.html b/src/parallel_tutorial.html
index 11dab734..b4bb5357 100644
--- a/src/parallel_tutorial.html
+++ b/src/parallel_tutorial.html
@@ -41,7 +41,7 @@
 		<li><a href="#replacement_strings">Replacement strings</a></li>
 		<ul>
 
-			<li><a href="#the_6_replacement_strings">The 6 replacement strings</a></li>
+			<li><a href="#the_7_replacement_strings">The 7 replacement strings</a></li>
 		</ul>
 
 		<li><a href="#changing_the_replacement_strings">Changing the replacement strings</a></li>
@@ -128,7 +128,7 @@ love you for it.</p>
 <h1><a name="prerequisites">Prerequisites</a></h1>
 <p>To run this tutorial you must have the following:</p>
 <dl>
-<dt><strong><a name="parallel_version_20130814" class="item">parallel &gt;= version 20130814</a></strong></dt>
+<dt><strong><a name="parallel_version_20140622" class="item">parallel &gt;= version 20140622</a></strong></dt>
 
 <dd>
 <p>Install the newest version with:</p>
@@ -390,7 +390,7 @@ exported using 'export -f':</p>
 <h2><a name="replacement_strings">Replacement strings</a></h2>
 <p>
 </p>
-<h3><a name="the_6_replacement_strings">The 6 replacement strings</a></h3>
+<h3><a name="the_7_replacement_strings">The 7 replacement strings</a></h3>
 <p>GNU Parallel has several replacement strings. If no replacement
 strings are used the default is to append {}:</p>
 <pre>
@@ -785,7 +785,7 @@ total of 5 jobs:</p>
 <p>--ungroup is fast, but can cause half a line from one job to be mixed
 with half a line of another job. That has happend in the second line,
 where the line '4-middle' is mixed with '2-start'.</p>
-<p>To avoid this use --linebuffer (which, however, is much slower):</p>
+<p>To avoid this use --linebuffer:</p>
 <pre>
   parallel -j2 --linebuffer 'printf &quot;%s-start\n%s&quot; {} {};sleep {};printf &quot;%s\n&quot; -middle;echo {}-end' ::: 4 2 1</pre>
 <p>Output:</p>
@@ -1903,7 +1903,7 @@ mailing lists</p>
 <p>(Have your company) donate to FSF <a href="https://my.fsf.org/donate/">https://my.fsf.org/donate/</a></p>
 </li>
 </ul>
-<p>(C) 20130822 Ole Tange GPLv3</p>
+<p>(C) 20140622 Ole Tange GPLv3</p>
 
 </body>
 
diff --git a/src/parallel_tutorial.pdf b/src/parallel_tutorial.pdf
index b855fe22..04a3b25f 100644
Binary files a/src/parallel_tutorial.pdf and b/src/parallel_tutorial.pdf differ
diff --git a/testsuite/tests-to-run/parallel-local22.sh b/testsuite/tests-to-run/parallel-local22.sh
index ca19f536..5fd6967c 100755
--- a/testsuite/tests-to-run/parallel-local22.sh
+++ b/testsuite/tests-to-run/parallel-local22.sh
@@ -43,4 +43,7 @@ echo '### Bug before 2009-08-26 causing regexp compile error or infinite loop (I
 echo '### nice and tcsh and Bug #33995: Jobs executed with sh instead of $SHELL'; 
   seq 1 2 | SHELL=tcsh MANPATH=. stdout parallel -k --nice 8 setenv a b\;echo \$SHELL
 
+echo '### bug #42041: Implement $PARALLEL_JOBSLOT'
+  parallel -k --slotreplace ,, -j2 echo ,, ::: {1..4}
+
 EOF
diff --git a/testsuite/wanted-results/parallel-local22 b/testsuite/wanted-results/parallel-local22
index e43360bc..464ccae0 100644
--- a/testsuite/wanted-results/parallel-local22
+++ b/testsuite/wanted-results/parallel-local22
@@ -23,3 +23,8 @@ d7fb96d6a56d4347bc24930a395c431a  -
 ### nice and tcsh and Bug #33995: Jobs executed with sh instead of $SHELL
 tcsh 1
 tcsh 2
+### bug #42041: Implement $PARALLEL_JOBSLOT
+1
+2
+1
+2