diff --git a/docs/src/manpage.md b/docs/src/manpage.md
index c4a7b38562..0d22cfdab3 100644
--- a/docs/src/manpage.md
+++ b/docs/src/manpage.md
@@ -50,7 +50,7 @@ MILLER(1)                                                            MILLER(1)
        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 mlr 6.8.0-dev.
+       manpage documents mlr 6.9.0.
 
 1mEXAMPLES0m
        mlr --icsv --opprint cat example.csv
@@ -3645,5 +3645,5 @@ MILLER(1)                                                            MILLER(1)
 
 
 
-                                  2023-08-30                         MILLER(1)
+                                  2023-08-31                         MILLER(1)
 </pre>
diff --git a/docs/src/manpage.txt b/docs/src/manpage.txt
index de6ca2f576..ccf519ceda 100644
--- a/docs/src/manpage.txt
+++ b/docs/src/manpage.txt
@@ -29,7 +29,7 @@ MILLER(1)                                                            MILLER(1)
        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 mlr 6.8.0-dev.
+       manpage documents mlr 6.9.0.
 
 1mEXAMPLES0m
        mlr --icsv --opprint cat example.csv
@@ -3624,4 +3624,4 @@ MILLER(1)                                                            MILLER(1)
 
 
 
-                                  2023-08-30                         MILLER(1)
+                                  2023-08-31                         MILLER(1)
diff --git a/docs/src/reference-verbs.md b/docs/src/reference-verbs.md
index 2b7e9501ff..89bbc2b71f 100644
--- a/docs/src/reference-verbs.md
+++ b/docs/src/reference-verbs.md
@@ -3807,8 +3807,8 @@ max            zee    zee    10000              0.999952670371898      0.9999648
 iqr            -      -      5000               0.5015156280035271     0.5118661397595003
 lof            -      -      -12499             -1.2578765057782637    -1.2834617140383442
 lif            -      -      -4999              -0.5056030637729731    -0.5156625043990937
-uif            -      -      10001              0.9989438202376082     1.0199359148794074
-uof            -      -      17501              1.751217262242899      1.787735124518658
+uif            -      -      15001              1.5004594482411353     1.5318020546389077
+uof            -      -      22501              2.252732890246426      2.2996012642781585
 </pre>
 
 <pre class="pre-highlight-in-pair">
diff --git a/internal/pkg/version/version.go b/internal/pkg/version/version.go
index 3072110fa7..47daeaa6d1 100644
--- a/internal/pkg/version/version.go
+++ b/internal/pkg/version/version.go
@@ -4,4 +4,4 @@ package version
 // Nominally things like "6.0.0" for a release, then "6.0.0-dev" in between.
 // This makes it clear that a given build is on the main dev branch, not a
 // particular snapshot tag.
-var STRING string = "6.8.0-dev"
+var STRING string = "6.9.0"
diff --git a/man/manpage.txt b/man/manpage.txt
index de6ca2f576..ccf519ceda 100644
--- a/man/manpage.txt
+++ b/man/manpage.txt
@@ -29,7 +29,7 @@ MILLER(1)                                                            MILLER(1)
        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 mlr 6.8.0-dev.
+       manpage documents mlr 6.9.0.
 
 1mEXAMPLES0m
        mlr --icsv --opprint cat example.csv
@@ -3624,4 +3624,4 @@ MILLER(1)                                                            MILLER(1)
 
 
 
-                                  2023-08-30                         MILLER(1)
+                                  2023-08-31                         MILLER(1)
diff --git a/man/mlr.1 b/man/mlr.1
index bda00b93a3..b8794a3521 100644
--- a/man/mlr.1
+++ b/man/mlr.1
@@ -2,12 +2,12 @@
 .\"     Title: mlr
 .\"    Author: [see the "AUTHOR" section]
 .\" Generator: ./mkman.rb
-.\"      Date: 2023-08-30
+.\"      Date: 2023-08-31
 .\"    Manual: \ \&
 .\"    Source: \ \&
 .\"  Language: English
 .\"
-.TH "MILLER" "1" "2023-08-30" "\ \&" "\ \&"
+.TH "MILLER" "1" "2023-08-31" "\ \&" "\ \&"
 .\" -----------------------------------------------------------------
 .\" * Portability definitions
 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -47,7 +47,7 @@ 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 mlr 6.8.0-dev.
+a special case.) This manpage documents mlr 6.9.0.
 .SH "EXAMPLES"
 .sp
 
diff --git a/miller.spec b/miller.spec
index b6c1c727e7..ba30cd94d1 100644
--- a/miller.spec
+++ b/miller.spec
@@ -1,6 +1,6 @@
 Summary: Name-indexed data processing tool
 Name: miller
-Version: 6.8.0
+Version: 6.9.0
 Release: 1%{?dist}
 License: BSD
 Source: https://github.com/johnkerl/miller/releases/download/%{version}/miller-%{version}.tar.gz
@@ -36,6 +36,9 @@ make install
 %{_mandir}/man1/mlr.1*
 
 %changelog
+* Thu Aug 31 2023 John Kerl <kerl.john.r@gmail.com> - 6.9.0-1
+- 6.9.0 release
+
 * Sun Jun 4 2023 John Kerl <kerl.john.r@gmail.com> - 6.8.0-1
 - 6.8.0 release