diff --git a/README.md b/README.md
index 0eaae3f7..b82a017a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# README for Seq66 0.99.9 2023-09-23
+# README for Seq66 0.99.9 2023-09-24
 
 __Seq66__: MIDI sequencer/live-looper with a hardware-sampler grid interface;
 pattern banks, triggers, and playlists for song management; scale and chord
diff --git a/RELNOTES b/RELNOTES
index ac386141..37e478ec 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -1,4 +1,4 @@
-Release Notes for Seq66 v. 0.99.9 2023-09-23
+Release Notes for Seq66 v. 0.99.9 2023-09-24
 
 -   Added an "Input Bus Routing" feature, where each pattern can be
     set to receive events from a given input buss. Selectable from
@@ -10,12 +10,16 @@ Release Notes for Seq66 v. 0.99.9 2023-09-23
 -   Added more seqroll keystokes. Enabled Esc to exit paint mode if
     not playing. Added keystroke zoom handling to additional panes.
 -   Added a show-hide build option to allow for a very small window.
--   Added HTML help files to data/share/doc/info for installation.
+-   Added HTML help files to data/share/doc/info for installation
+    and viewing. Help for hard-wired panel keystrokes.
 -   The usual raft of humiliating bug-fixes:
     -   Fixed nasty segfault opening new file with Editor tab open.
     -   Fixed port-mapping Remap and Restart not restarting Seq66.
-    -   Fixed bug in detecting Note-related events.
+    -   Fixed years-long bug in detecting Note-related events.
     -   Fixed error in "quiet" startup that would cause immediate exit.
+    -   Fixed error in copying info files in the NSIS build.
+    -   Fixed startup error in portmidi with missing ports;
+        however, still broken in the Windows build. See TODO.
 
 Read the NEWS, README.md, and TODO files.
 
diff --git a/TODO b/TODO
index 48565dd3..e2fa134a 100644
--- a/TODO
+++ b/TODO
@@ -1,9 +1,13 @@
 TO DO for Seq66 0.99.9
 Chris Ahlstrom
-2019-04-13 to 2023-09-22
+2019-04-13 to 2023-09-24
 
 Misc:
 
+    -   Windows: If ports are missing, the application just exits (it
+        works fine in the Linux portmidi build). The workaround
+        is save the 'rc' file elsewhere, run the exe, and then
+        merge the port settings back into the original 'rc' file.
     -   In the data pane, for tempo, program change etc., allow them to be
         dragged up and down (at least for tempo).
     -   Next version, document and test mute groups.
diff --git a/VERSION b/VERSION
index 88f97334..7167e245 100644
--- a/VERSION
+++ b/VERSION
@@ -1,2 +1,2 @@
-2023-08-27
+2023-09-24
 0.99.9
diff --git a/configure.ac b/configure.ac
index 22226d46..09d293f2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ dnl \file          configure.ac
 dnl \library       Seq66
 dnl \author        Chris Ahlstrom
 dnl \date          2018-11-09
-dnl \update        2023-09-11
+dnl \update        2023-09-24
 dnl \version       $Revision$
 dnl \license       $XPC_SUITE_GPL_LICENSE$
 dnl
@@ -480,7 +480,7 @@ dnl      automatically for us.
 
 AH_TOP(
 
-#define VERSION_DATE_SHORT "2023-09-11"
+#define VERSION_DATE_SHORT "2023-09-24"
 #define API_VERSION "0.99"
 #define VERSION "0.99.9"
 
diff --git a/data/readme.text b/data/readme.text
index 605c0c4a..a8833bbc 100644
--- a/data/readme.text
+++ b/data/readme.text
@@ -1,8 +1,8 @@
 readme.text for Seq66 0.99.9
 Chris Ahlstrom
-2015-09-10 to 2023-08-28
+2015-09-10 to 2023-09-24
 
-Release 0.99.8 fixes known issues, and adds additional run-time help files and
+Release 0.99.9 fixes known issues, and adds additional run-time help files and
 some more automation functions.
 
 Seq66 is a refactoring of a reboot (sequencer64) of seq24, extending it with new
diff --git a/data/readme.windows b/data/readme.windows
index e48eec2f..fd4d9b2d 100644
--- a/data/readme.windows
+++ b/data/readme.windows
@@ -1,6 +1,6 @@
 readme.windows for Seq66 0.99.9 and above
 Chris Ahlstrom
-2018-05-13 to 2023-08-28
+2018-05-13 to 2023-09-24
 
 This README file tells you how to run the native Windows implmentation of
 seq66, an executable named qpseq66.exe.  It provides some notes on Seq66 and
diff --git a/data/share/doc/seq66-user-manual.pdf b/data/share/doc/seq66-user-manual.pdf
index b6309154..b4e62d45 100644
Binary files a/data/share/doc/seq66-user-manual.pdf and b/data/share/doc/seq66-user-manual.pdf differ
diff --git a/doc/latex/tex/seq66-user-manual.tex b/doc/latex/tex/seq66-user-manual.tex
index f472cdeb..b8a459cf 100644
--- a/doc/latex/tex/seq66-user-manual.tex
+++ b/doc/latex/tex/seq66-user-manual.tex
@@ -52,7 +52,7 @@
 
 \begin{document}
 
-\title{Seq66 User Manual v. 0.99.8}
+\title{Seq66 User Manual v. 0.99.9}
 \author{Chris Ahlstrom \\
    (\texttt{ahlstromcj@gmail.com})}
 \date{\today}
@@ -85,7 +85,7 @@
 \section{Introduction}
 \label{sec:introduction}
 
-   This document describes "Seq66", a reboot of \textsl{Seq24} and a rewrite of
+   Seq66 is a reboot of \textsl{Seq24} and a rewrite of
    \textsl{Sequencer64}.
    The following projects support \textsl{Seq66} and its documentation (see
    the \textbf{Help} menu):
diff --git a/include/config.h.in b/include/config.h.in
index 4b5d516d..a0f83689 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -1,6 +1,6 @@
 /* include/config.h.in.  Generated from configure.ac by autoheader.  */
 
-#define VERSION_DATE_SHORT "2023-09-11"
+#define VERSION_DATE_SHORT "2023-09-24"
 #define API_VERSION "0.99"
 #define VERSION "0.99.9"
 
diff --git a/include/qt/portmidi/seq66-config.h b/include/qt/portmidi/seq66-config.h
index 3fd15c78..20970051 100644
--- a/include/qt/portmidi/seq66-config.h
+++ b/include/qt/portmidi/seq66-config.h
@@ -33,7 +33,7 @@
  * \library       seq66 application
  * \author        Chris Ahlstrom
  * \date          2018-11-10
- * \updates       2023-08-27
+ * \updates       2023-09-24
  * \license       GNU GPLv2 or above
  *
  *  Qt Portmidi Linux and Windows versions, hardwired for use with
@@ -62,7 +62,7 @@
 #endif
 
 #if ! defined SEQ66_VERSION_DATE_SHORT
-#define SEQ66_VERSION_DATE_SHORT "2023-08-27"
+#define SEQ66_VERSION_DATE_SHORT "2023-09-24"
 #endif
 
 #if ! defined SEQ66_API_VERSION
diff --git a/include/qt/rtmidi/seq66-config.h b/include/qt/rtmidi/seq66-config.h
index 1d4131a9..236f9ab4 100644
--- a/include/qt/rtmidi/seq66-config.h
+++ b/include/qt/rtmidi/seq66-config.h
@@ -33,7 +33,7 @@
  * \library       seq66 application
  * \author        Chris Ahlstrom
  * \date          2020-05-31
- * \updates       2023-08-31
+ * \updates       2023-09-24
  * \license       GNU GPLv2 or above
  *
  *  Qt Rtmidi Linux and Windows versions, hardwired for use with
@@ -70,7 +70,7 @@
 #endif
 
 #if ! defined SEQ66_VERSION_DATE_SHORT
-#define SEQ66_VERSION_DATE_SHORT "2023-08-31"
+#define SEQ66_VERSION_DATE_SHORT "2023-09-24"
 #endif
 
 #if ! defined SEQ66_API_VERSION
diff --git a/libseq66/src/sessions/smanager.cpp b/libseq66/src/sessions/smanager.cpp
index e866f6fd..957bbe17 100644
--- a/libseq66/src/sessions/smanager.cpp
+++ b/libseq66/src/sessions/smanager.cpp
@@ -25,7 +25,7 @@
  * \library       seq66 application
  * \author        Chris Ahlstrom
  * \date          2020-03-22
- * \updates       2023-09-15
+ * \updates       2023-09-24
  * \license       GNU GPLv2 or above
  *
  *  Note that this module is part of the libseq66 library, not the libsessions
@@ -767,6 +767,10 @@ smanager::show_error (const std::string & tag, const std::string & msg) const
  *  Checks for an internal (e.g. PortMidi) error, storing the message if
  *  applicable.
  *
+ *  ca 2023-09-24
+ *  For portmidi, the internal_error_check() might not find an error,
+ *  while a port-map error does exist. So we add a check of the latter here.
+ *
  * \param [out] errmsg
  *      Provides a destination for the PortMidi error.  It is cleared if
  *      there is no error.
@@ -796,6 +800,10 @@ smanager::internal_error_check (std::string & errmsg) const
         if (not_nullptr(perr) && std::strlen(perr) > 0)
             pmerrmsg = std::string(perr);
     }
+    else
+    {
+        result = perf()->port_map_error();              /* ca 2023-09-24 */
+    }
 
 #else
 
diff --git a/nsis/build_release_package.bat b/nsis/build_release_package.bat
index db8d7589..d1189774 100644
--- a/nsis/build_release_package.bat
+++ b/nsis/build_release_package.bat
@@ -172,7 +172,7 @@
 ::---------------------------------------------------------------------------
  
 set PROJECT_VERSION=0.99.9
-set PROJECT_DATE=2023-08-28
+set PROJECT_DATE=2023-09-24
 set PROJECT_DRIVE=C:
 
 :: Set the bits of the project, either 64 or 32. Also define WIN64 versus
@@ -214,7 +214,7 @@ set RELEASE_DIR=%APP_DIR%\release
 set AUX_DIR=data
 set DOC_DIR=data\share\doc
 set TUTORIAL_DIR=data\share\doc\tutorial
-set INFO_DIR=data\share\doc\tutorial
+set INFO_DIR=data\share\doc\info
 
 :: The quotes are required here. Do we want to add "qtquickcompiler"?