diff --git a/CMakeLists.txt b/CMakeLists.txt
index bf09e5ba1..8240974e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,7 @@ IF( POLICY CMP0054 )
 ENDIF( POLICY CMP0054 )
 #
 # cppad_version is used by version.sh to get the version number.
-SET(cppad_version "20230101")
+SET(cppad_version "20230000.0")
 SET(cppad_url          "https://coin-or.github.io/CppAD" )
 SET(cppad_description  "Differentiation of C++ Algorithms" )
 #
diff --git a/configure b/configure
index bcddda714..83b2e8d29 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for cppad 20230101.
+# Generated by GNU Autoconf 2.71 for cppad 20230000.0.
 #
 # Report bugs to <cppad@list.coin-or.org>.
 #
@@ -610,8 +610,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='cppad'
 PACKAGE_TARNAME='cppad'
-PACKAGE_VERSION='20230101'
-PACKAGE_STRING='cppad 20230101'
+PACKAGE_VERSION='20230000.0'
+PACKAGE_STRING='cppad 20230000.0'
 PACKAGE_BUGREPORT='cppad@list.coin-or.org'
 PACKAGE_URL=''
 
@@ -1394,7 +1394,7 @@ 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 cppad 20230101 to adapt to many kinds of systems.
+\`configure' configures cppad 20230000.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1465,7 +1465,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of cppad 20230101:";;
+     short | recursive ) echo "Configuration of cppad 20230000.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1588,7 +1588,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-cppad configure 20230101
+cppad configure 20230000.0
 generated by GNU Autoconf 2.71
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -1983,7 +1983,7 @@ 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 cppad $as_me 20230101, which was
+It was created by cppad $as_me 20230000.0, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -3487,7 +3487,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='cppad'
- VERSION='20230101'
+ VERSION='20230000.0'
 
 
 printf "%s\n" "#define PACKAGE \"$PACKAGE\"" >>confdefs.h
@@ -8822,7 +8822,7 @@ cat >>$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 cppad $as_me 20230101, which was
+This file was extended by cppad $as_me 20230000.0, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -8881,7 +8881,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-cppad config.status 20230101
+cppad config.status 20230000.0
 configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 6704e8370..ea8ba4f3e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@
 # ----------------------------------------------------------------------------
 dnl Process this file with autoconf to produce a configure script.
 dnl   package   version              bug-report
-AC_INIT([cppad], [20230101], [cppad@list.coin-or.org])
+AC_INIT([cppad], [20230000.0], [cppad@list.coin-or.org])
 AM_SILENT_RULES([no])
 
 dnl By defalut disable maintainer mode when running configure;
diff --git a/user_guide.xrst b/user_guide.xrst
index af9a1b8d8..ab621e8d2 100644
--- a/user_guide.xrst
+++ b/user_guide.xrst
@@ -11,8 +11,8 @@
    posix
 }
 
-cppad-20230101: CppAD User's Manual
-###################################
+cppad-20230000.0: CppAD User's Manual
+#####################################
 
 .. image:: {xrst_dir coin.png}