diff --git a/c/mlrvers.h b/c/mlrvers.h
index 1312c7e1c..21be7cdae 100644
--- a/c/mlrvers.h
+++ b/c/mlrvers.h
@@ -1,5 +1,5 @@
 #ifndef MLRVERS_H
 #define MLRVERS_H
 // Manually increment on updates to https://github.com/johnkerl/miller/releases
-#define MLR_VERSION "v5.8.0-dev"
+#define MLR_VERSION "v5.9.0"
 #endif // MLRVERS_H
diff --git a/configure b/configure
index 541e9da11..ab837ab82 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 mlr 5.8.0.
+# Generated by GNU Autoconf 2.69 for mlr 5.9.0.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -587,8 +587,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='mlr'
 PACKAGE_TARNAME='mlr'
-PACKAGE_VERSION='5.8.0'
-PACKAGE_STRING='mlr 5.8.0'
+PACKAGE_VERSION='5.9.0'
+PACKAGE_STRING='mlr 5.9.0'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1324,7 +1324,7 @@ 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 mlr 5.8.0 to adapt to many kinds of systems.
+\`configure' configures mlr 5.9.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1395,7 +1395,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of mlr 5.8.0:";;
+     short | recursive ) echo "Configuration of mlr 5.9.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1505,7 +1505,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-mlr configure 5.8.0
+mlr configure 5.9.0
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1783,7 +1783,7 @@ 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 mlr $as_me 5.8.0, which was
+It was created by mlr $as_me 5.9.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2650,7 +2650,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='mlr'
- VERSION='5.8.0'
+ VERSION='5.9.0'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -12742,7 +12742,7 @@ 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 mlr $as_me 5.8.0, which was
+This file was extended by mlr $as_me 5.9.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -12812,7 +12812,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-mlr config.status 5.8.0
+mlr config.status 5.9.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 3708e3b6b..10450291d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 AC_PREREQ([2.60])
 # Manually increment on updates to https://github.com/johnkerl/miller/releases
-AC_INIT([mlr],[5.8.0-dev])
+AC_INIT([mlr],[5.9.0])
 AC_CONFIG_SRCDIR([c/mlrmain.c])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_AUX_DIR([autotools])
diff --git a/doc/cookbook.html b/doc/cookbook.html
index 6fac80615..366c3007d 100644
--- a/doc/cookbook.html
+++ b/doc/cookbook.html
@@ -859,7 +859,7 @@ date,qoh
 <div class="pokipanel">
 <pre>
 $ wc -l data/miss-date.csv
-    1372 data/miss-date.csv
+1372 data/miss-date.csv
 </pre>
 </div>
 <p/>
diff --git a/doc/data-examples.html b/doc/data-examples.html
index 85b32c7d5..b0ec49401 100644
--- a/doc/data-examples.html
+++ b/doc/data-examples.html
@@ -209,7 +209,7 @@ St. Johns  -                      -                       -
 <div class="pokipanel">
 <pre>
 $ wc -l data/colored-shapes.dkvp
-   10078 data/colored-shapes.dkvp
+10078 data/colored-shapes.dkvp
 </pre>
 </div>
 <p/>
diff --git a/doc/data-sharing.html b/doc/data-sharing.html
index 819c7d98b..548fbf7c1 100644
--- a/doc/data-sharing.html
+++ b/doc/data-sharing.html
@@ -207,11 +207,11 @@ Run as-is:
 <div class="pokipanel">
 <pre>
 $ python polyglot-dkvp-io/example.py &lt; data/small
-a=pan,b=pan,i=1,y=0.7268028627434533,ab=panpan,iy=1.7268028627434533,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
-a=eks,b=pan,i=2,y=0.5221511083334797,ab=ekspan,iy=2.5221511083334796,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
-a=wye,b=wye,i=3,y=0.33831852551664776,ab=wyewye,iy=3.3383185255166477,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
-a=eks,b=wye,i=4,y=0.13418874328430463,ab=ekswye,iy=4.134188743284304,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
-a=wye,b=pan,i=5,y=0.8636244699032729,ab=wyepan,iy=5.863624469903273,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
+a=pan,b=pan,i=1,y=0.726802862743,ab=panpan,iy=1.72680286274,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
+a=eks,b=pan,i=2,y=0.522151108333,ab=ekspan,iy=2.52215110833,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
+a=wye,b=wye,i=3,y=0.338318525517,ab=wyewye,iy=3.33831852552,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
+a=eks,b=wye,i=4,y=0.134188743284,ab=ekswye,iy=4.13418874328,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
+a=wye,b=pan,i=5,y=0.863624469903,ab=wyepan,iy=5.8636244699,ta=str,tb=str,ti=int,ty=float,tab=str,tiy=float
 </pre>
 </div>
 <p/>
@@ -222,12 +222,12 @@ Run as-is, then pipe to Miller for pretty-printing:
 <div class="pokipanel">
 <pre>
 $ python polyglot-dkvp-io/example.py &lt; data/small | mlr --opprint cat
-a   b   i y                   ab     iy                 ta  tb  ti  ty    tab tiy
-pan pan 1 0.7268028627434533  panpan 1.7268028627434533 str str int float str float
-eks pan 2 0.5221511083334797  ekspan 2.5221511083334796 str str int float str float
-wye wye 3 0.33831852551664776 wyewye 3.3383185255166477 str str int float str float
-eks wye 4 0.13418874328430463 ekswye 4.134188743284304  str str int float str float
-wye pan 5 0.8636244699032729  wyepan 5.863624469903273  str str int float str float
+a   b   i y              ab     iy            ta  tb  ti  ty    tab tiy
+pan pan 1 0.726802862743 panpan 1.72680286274 str str int float str float
+eks pan 2 0.522151108333 ekspan 2.52215110833 str str int float str float
+wye wye 3 0.338318525517 wyewye 3.33831852552 str str int float str float
+eks wye 4 0.134188743284 ekswye 4.13418874328 str str int float str float
+wye pan 5 0.863624469903 wyepan 5.8636244699  str str int float str float
 </pre>
 </div>
 <p/>
@@ -418,11 +418,11 @@ wye pan 5 0.5732889198020006  0.8636244699032729  {5}
 <pre>
 $ mlr --opprint put '$o = system("echo -n ".$a."| sha1sum")' data/small
 a   b   i x                   y                   o
-pan pan 1 0.3467901443380824  0.7268028627434533  f29c748220331c273ef16d5115f6ecd799947f13  -
-eks pan 2 0.7586799647899636  0.5221511083334797  456d988ecb3bf1b75f057fc6e9fe70db464e9388  -
-wye wye 3 0.20460330576630303 0.33831852551664776 eab0de043d67f441c7fd1e335f0ca38708e6ebf7  -
-eks wye 4 0.38139939387114097 0.13418874328430463 456d988ecb3bf1b75f057fc6e9fe70db464e9388  -
-wye pan 5 0.5732889198020006  0.8636244699032729  eab0de043d67f441c7fd1e335f0ca38708e6ebf7  -
+pan pan 1 0.3467901443380824  0.7268028627434533  bd2bd8216b9cb4aa5a12daa6cfc98eef2ee20e56  -
+eks pan 2 0.7586799647899636  0.5221511083334797  16191338e81a46c7d127f5c8899f5c92e3cd38e3  -
+wye wye 3 0.20460330576630303 0.33831852551664776 14ba3c3e96a2474ab6dc7409ebf9d6b9cc3d84f0  -
+eks wye 4 0.38139939387114097 0.13418874328430463 16191338e81a46c7d127f5c8899f5c92e3cd38e3  -
+wye pan 5 0.5732889198020006  0.8636244699032729  14ba3c3e96a2474ab6dc7409ebf9d6b9cc3d84f0  -
 </pre>
 </div>
 <p/>
diff --git a/doc/manpage.html b/doc/manpage.html
index 77ba45b67..439e1ec8b 100644
--- a/doc/manpage.html
+++ b/doc/manpage.html
@@ -92,7 +92,7 @@ DESCRIPTION
        insertion-ordered hash map.  This encompasses a variety of data
        formats, including but not limited to the familiar CSV, TSV, and JSON.
        (Miller can handle positionally-indexed data as a special case.) This
-       manpage documents Miller v5.8.0-dev.
+       manpage documents Miller v5.9.0.
 
 EXAMPLES
    COMMAND-LINE SYNTAX
diff --git a/doc/manpage.txt b/doc/manpage.txt
index 380e0c3b7..ec3806fbe 100644
--- a/doc/manpage.txt
+++ b/doc/manpage.txt
@@ -18,7 +18,7 @@ DESCRIPTION
        insertion-ordered hash map.  This encompasses a variety of data
        formats, including but not limited to the familiar CSV, TSV, and JSON.
        (Miller can handle positionally-indexed data as a special case.) This
-       manpage documents Miller v5.8.0-dev.
+       manpage documents Miller v5.9.0.
 
 EXAMPLES
    COMMAND-LINE SYNTAX
diff --git a/doc/mlr.1 b/doc/mlr.1
index 7ce67562f..2caba46f0 100644
--- a/doc/mlr.1
+++ b/doc/mlr.1
@@ -38,7 +38,7 @@ on integer-indexed fields: if the natural data structure for the latter is the
 array, then Miller's natural data structure is the insertion-ordered hash map.
 This encompasses a variety of data formats, including but not limited to the
 familiar CSV, TSV, and JSON.  (Miller can handle positionally-indexed data as
-a special case.) This manpage documents Miller v5.8.0-dev.
+a special case.) This manpage documents Miller v5.9.0.
 .SH "EXAMPLES"
 .sp
 
diff --git a/doc/reference-dsl.html b/doc/reference-dsl.html
index fa46e1a6e..2103a2bd3 100644
--- a/doc/reference-dsl.html
+++ b/doc/reference-dsl.html
@@ -2025,7 +2025,7 @@ subsequent assignments are done unconditionally:
 <pre>
 $ mlr put '$x &gt; 0.0; $y = log10($x); $z = sqrt($y)' data/put-gating-example-1.dkvp
 x=-1,y=nan,z=nan
-x=0,y=-inf,z=nan
+x=0,y=-inf,z=-nan
 x=1,y=0.000000,z=0.000000
 x=2,y=0.301030,z=0.548662
 x=3,y=0.477121,z=0.690740
diff --git a/doc/reference-verbs.html b/doc/reference-verbs.html
index 059f9309a..c53586a08 100644
--- a/doc/reference-verbs.html
+++ b/doc/reference-verbs.html
@@ -4047,7 +4047,7 @@ Options:
 <div class="pokipanel">
 <pre>
 $ wc -l data/colored-shapes.dkvp
-   10078 data/colored-shapes.dkvp
+10078 data/colored-shapes.dkvp
 </pre>
 </div>
 <p/>
@@ -4219,7 +4219,7 @@ color=purple,shape=square,flag=0
 <div class="pokipanel">
 <pre>
 $ wc -l data/repeats.dkvp
-      57 data/repeats.dkvp
+57 data/repeats.dkvp
 </pre>
 </div>
 <p/>
diff --git a/doc/reference.html b/doc/reference.html
index e96065962..7dff07ef1 100644
--- a/doc/reference.html
+++ b/doc/reference.html
@@ -1631,7 +1631,7 @@ Available subcommands:
 For more information, please invoke mlr {subcommand} --help
 
 For more information please see http://johnkerl.org/miller/doc and/or
-http://github.com/johnkerl/miller. This is Miller version v5.8.0-dev.
+http://github.com/johnkerl/miller. This is Miller version v5.9.0.
 </pre>
 </div>
 <p/>
diff --git a/miller.spec b/miller.spec
index 959bdb653..6900f2c88 100644
--- a/miller.spec
+++ b/miller.spec
@@ -1,6 +1,6 @@
 Summary: Name-indexed data processing tool
 Name: miller
-Version: 5.8.0
+Version: 5.9.0
 Release: 1%{?dist}
 License: BSD
 Source: https://github.com/johnkerl/miller/releases/download/%{version}/mlr-%{version}.tar.gz
@@ -35,6 +35,9 @@ make check
 %{_mandir}/man1/mlr.1*
 
 %changelog
+* Wed Aug 19 2020 John Kerl <kerl.john.r@gmail.com> - 5.9.0-1
+- 5.9.0 release
+
 * Mon Aug 03 2020 John Kerl <kerl.john.r@gmail.com> - 5.8.0-1
 - 5.8.0 release