diff --git a/ChangeLog b/ChangeLog
index 0c86d7a662..6832cd5ac9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2004-04-19  Sven Neumann  <sven@gimp.org>
+
+	* configure.in: set gimp_plugin_version, gimp_sysconf_version and
+	gimp_data_version to 2.1 so that the development version is
+	clearly separated from stable gimp 2.0.
+
 2004-04-19  Michael Natterer  <mitch@gimp.org>
 
 	* menus/Makefile.am
diff --git a/configure.in b/configure.in
index 51883b5f49..f8d5ee9355 100644
--- a/configure.in
+++ b/configure.in
@@ -28,11 +28,11 @@ m4_define([gimp_api_version], [2.0])
 # Versions used for apps, plugins, tools, pkg-config files, and data,
 # as well as global and user prefs
 m4_define([gimp_app_version], [2.1])
-m4_define([gimp_plugin_version], [2.0])
+m4_define([gimp_plugin_version], [2.1])
 m4_define([gimp_tool_version], [2.1])
 m4_define([gimp_pkgconfig_version], [2.0])
-m4_define([gimp_data_version], [2.0])
-m4_define([gimp_sysconf_version], [2.0])
+m4_define([gimp_data_version], [2.1])
+m4_define([gimp_sysconf_version], [2.1])
 m4_define([gimp_user_version], [2.1])
 
 m4_define([gimp_unstable],