diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3caa706b..27130b83 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,12 +37,12 @@ SET( PACKAGE_COPYRIGHT      "Andreas Huggel" )
 SET( PACKAGE_BUGREPORT      "ahuggel@gmx.net" )
 SET( PACKAGE                "exiv2" )
 SET( PACKAGE_NAME           "exiv2" )
-SET( PACKAGE_STRING         "exiv2 0.22" )
+SET( PACKAGE_STRING         "exiv2 0.23" )
 SET( PACKAGE_TARNAME        "exiv2" )
-SET( PACKAGE_VERSION        "0.22" )
+SET( PACKAGE_VERSION        "0.23" )
 SET( PACKAGE_URL            "http://www.exiv2.org" )
-SET( GENERIC_LIB_VERSION    "11.0.0" )
-SET( GENERIC_LIB_SOVERSION  "11" )
+SET( GENERIC_LIB_VERSION    "12.0.0" )
+SET( GENERIC_LIB_SOVERSION  "12" )
 
 # options and their default values
 OPTION( EXIV2_ENABLE_SHARED        "Build exiv2 as a shared library (dll)"                 ON  )
diff --git a/config/configure.ac b/config/configure.ac
index c8e42997..56fc54a1 100644
--- a/config/configure.ac
+++ b/config/configure.ac
@@ -2,9 +2,9 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.61)
-AC_INIT(exiv2, 0.22, ahuggel@gmx.net)
+AC_INIT(exiv2, 0.23, ahuggel@gmx.net)
 # See http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-EXIV2_LTVERSION=11:0:0
+EXIV2_LTVERSION=12:0:0
 PACKAGE=$PACKAGE_NAME
 VERSION=$PACKAGE_VERSION
 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
diff --git a/msvc/include/exv_msvc.h b/msvc/include/exv_msvc.h
index b022292e..c5036c2e 100644
--- a/msvc/include/exv_msvc.h
+++ b/msvc/include/exv_msvc.h
@@ -28,13 +28,13 @@
 #define EXV_PACKAGE_NAME "exiv2"
 
 /* Define to the full name and version of this package. */
-#define EXV_PACKAGE_STRING "exiv2 0.22"
+#define EXV_PACKAGE_STRING "exiv2 0.23"
 
 /* Define to the one symbol short name of this package. */
 #define EXV_PACKAGE_TARNAME "exiv2"
 
 /* Define to the version of this package. */
-#define EXV_PACKAGE_VERSION "0.22"
+#define EXV_PACKAGE_VERSION "0.23"
 
 /* Define to `int' if <sys/types.h> does not define pid_t. */
 typedef int pid_t;
diff --git a/msvc64/include/exv_msvc.h b/msvc64/include/exv_msvc.h
index 57143545..4e315e28 100644
--- a/msvc64/include/exv_msvc.h
+++ b/msvc64/include/exv_msvc.h
@@ -28,13 +28,13 @@
 #define EXV_PACKAGE_NAME "exiv2"
 
 /* Define to the full name and version of this package. */
-#define EXV_PACKAGE_STRING "exiv2 0.22"
+#define EXV_PACKAGE_STRING "exiv2 0.23"
 
 /* Define to the one symbol short name of this package. */
 #define EXV_PACKAGE_TARNAME "exiv2"
 
 /* Define to the version of this package. */
-#define EXV_PACKAGE_VERSION "0.22"
+#define EXV_PACKAGE_VERSION "0.23"
 
 /* Define to `int' if <sys/types.h> does not define pid_t. */
 typedef int pid_t;
diff --git a/src/version.hpp b/src/version.hpp
index c8f2be38..4c626ad5 100644
--- a/src/version.hpp
+++ b/src/version.hpp
@@ -44,7 +44,7 @@
 /*!
   @brief %Exiv2 MINOR version number of the library used at compile-time.
  */
-#define EXIV2_MINOR_VERSION (22)
+#define EXIV2_MINOR_VERSION (23)
 /*!
   @brief %Exiv2 PATCH version number of the library used at compile-time.
  */
diff --git a/test/data/exiv2-test.out b/test/data/exiv2-test.out
index ee55a46e..46b15a28 100644
--- a/test/data/exiv2-test.out
+++ b/test/data/exiv2-test.out
@@ -2,7 +2,7 @@ Exiv2 test directory -----------------------------------------------------
 tmp/
 
 Exiv2 version ------------------------------------------------------------
-exiv2 0.22 001600 (__ bit build)
+exiv2 0.23 001700 (__ bit build)
 Copyright (C) 2004-2012 Andreas Huggel.
 
 This program is free software; you can redistribute it and/or