diff --git a/README.md b/README.md
index 4a125a8c..bdd2027a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# MibS 1.2
+# MibS 1.2.0
 
 [![A COIN-OR Project](https://coin-or.github.io/coin-or-badge.png)](https://www.coin-or.org)
 
@@ -41,9 +41,9 @@ Paper: https://doi.org/10.1007/s12532-020-00183-6
 
 ## CURRENT BUILD STATUS
 
-[![Windows Builds](https://github.com/coin-or/MibS/actions/workflows/windows-ci.yml/badge.svg?branch=stable/1.2)](https://github.com/coin-or/MibS/actions/workflows/windows-ci.yml?query=branch%3Astable/1.2)
+[![Windows Builds](https://github.com/coin-or/MibS/actions/workflows/windows-ci.yml/badge.svg?branch=releases/1.2.0)](https://github.com/coin-or/MibS/actions/workflows/windows-ci.yml?query=branch%3Areleases/1.2.0)
 
-[![Linux and MacOS Builds](https://github.com/coin-or/MibS/actions/workflows/linux-ci.yml/badge.svg?branch=stable/1.2)](https://github.com/coin-or/MibS/actions/workflows/linux-ci.yml?query=branch%3Astable/1.2)
+[![Linux and MacOS Builds](https://github.com/coin-or/MibS/actions/workflows/linux-ci.yml/badge.svg?branch=releases/1.2.0)](https://github.com/coin-or/MibS/actions/workflows/linux-ci.yml?query=branch%3Areleases/1.2.0)
 
 ## DOWNLOAD
 
@@ -101,7 +101,7 @@ following on the command line.
 ```
 wget https://raw.githubusercontent.com/coin-or/coinbrew/master/coinbrew
 chmod u+x coinbrew
-./coinbrew fetch MibS@1.2
+./coinbrew fetch MibS@1.2.0
 ./coinbrew build MibS
 ```
 For more detailed instructions on coinbrew, see https://coin-or.github.io/coinbrew.
diff --git a/configure b/configure
index 76457f5c..d74f602f 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.59 for MibS 1.2.
+# Generated by GNU Autoconf 2.59 for MibS 1.2.0.
 #
 # Report bugs to <https://github.com/tkralphs/MibS/issues/new>.
 #
@@ -440,8 +440,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='MibS'
 PACKAGE_TARNAME='mibs'
-PACKAGE_VERSION='1.2'
-PACKAGE_STRING='MibS 1.2'
+PACKAGE_VERSION='1.2.0'
+PACKAGE_STRING='MibS 1.2.0'
 PACKAGE_BUGREPORT='https://github.com/tkralphs/MibS/issues/new'
 
 ac_unique_file="src/MibSBilevel.hpp"
@@ -1020,7 +1020,7 @@ 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 MibS 1.2 to adapt to many kinds of systems.
+\`configure' configures MibS 1.2.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1086,7 +1086,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of MibS 1.2:";;
+     short | recursive ) echo "Configuration of MibS 1.2.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1282,7 +1282,7 @@ fi
 test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
   cat <<\_ACEOF
-MibS configure 1.2
+MibS configure 1.2.0
 generated by GNU Autoconf 2.59
 
 Copyright (C) 2003 Free Software Foundation, Inc.
@@ -1313,7 +1313,7 @@ cat >&5 <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by MibS $as_me 1.2, which was
+It was created by MibS $as_me 1.2.0, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   $ $0 $@
@@ -1652,7 +1652,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 cat >>confdefs.h <<\_ACEOF
-#define MIBS_GIT_VERSION releases/1.1.2-199-ge24ff35
+#define MIBS_GIT_VERSION releases/1.1.2-203-g44e3ecc
 _ACEOF
 
 
@@ -1845,7 +1845,7 @@ _ACEOF
 
 
 # Capture libtool library version, if given.
-
+ coin_libversion=5:0:2
 
 
 
@@ -4560,7 +4560,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='mibs'
- VERSION='1.2'
+ VERSION='1.2.0'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -23841,7 +23841,7 @@ _ASBOX
 } >&5
 cat >&5 <<_CSEOF
 
-This file was extended by MibS $as_me 1.2, which was
+This file was extended by MibS $as_me 1.2.0, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -23904,7 +23904,7 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
-MibS config.status 1.2
+MibS config.status 1.2.0
 configured by $0, generated by GNU Autoconf 2.59,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.ac b/configure.ac
index e2e1c91c..c50e95c6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@
 AC_PREREQ(2.59)
 
 m4_define([gitversion], m4_esyscmd([sh -c "git describe --always | cut -d '=' -f 2 | head --bytes -1"]))
-AC_INIT([MibS],[1.2],[https://github.com/tkralphs/MibS/issues/new])
+AC_INIT([MibS],[1.2.0],[https://github.com/tkralphs/MibS/issues/new])
 
 AC_DEFINE([MIBS_GIT_VERSION], [gitversion], [MibS git version])
 
@@ -61,7 +61,7 @@ AC_CANONICAL_BUILD
 # the source root directory contains definition of where to find those
 # externals.  The following macro ensures that those externals are
 # retrieved by svn if they are not there yet.
-AC_COIN_PROJECTDIR_INIT(MibS)
+AC_COIN_PROJECTDIR_INIT(MibS,5:0:2)
 
 # Check if user wants to produce debugging code
 AC_COIN_DEBUG_COMPILE(MibS)
diff --git a/src/config_mibs_default.h b/src/config_mibs_default.h
index 31fcadc7..d72d1bc5 100644
--- a/src/config_mibs_default.h
+++ b/src/config_mibs_default.h
@@ -18,14 +18,14 @@
 /***************************************************************************/
 
 /* Version number of project */
-#define MIBS_VERSION "trunk"
+#define MIBS_VERSION "1.2.0"
 
 /* Major Version number of project */
-#define MIBS_VERSION_MAJOR   9999
+#define MIBS_VERSION_MAJOR 1
 
 /* Minor Version number of project */
-#define MIBS_VERSION_MINOR   9999
+#define MIBS_VERSION_MINOR 2
 
 /* Release Version number of project */
-#define MIBS_VERSION_RELEASE 9999
+#define MIBS_VERSION_RELEASE 0