diff --git a/checkin_notes b/checkin_notes
index 443999d538..865dd4a457 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -6356,3 +6356,10 @@ Charlie 19 June 2007
     mac_build/
         boinc.xcodeproj/
             project.pbxproj
+
+Rom    19 June 2007
+    - Set version number to 5.11.0 to start off the 6.0 development cycle.
+    
+    /
+        configure.ac
+        version.h
diff --git a/configure.ac b/configure.ac
index a2c760439a..75bdd816f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,7 +9,7 @@ dnl not sure exactly what the minimum version is (but 2.13 wont work)
 AC_PREREQ(2.57)
 
 dnl Set the BOINC version here.  You can also use the set-version script.
-AC_INIT(BOINC, 5.10.6)
+AC_INIT(BOINC, 5.11.0)
 
 AC_ARG_ENABLE(debug, 
     AS_HELP_STRING([--enable-debug],
diff --git a/version.h b/version.h
index 5542aaffab..9ad6a2df8d 100644
--- a/version.h
+++ b/version.h
@@ -7,13 +7,13 @@
 #define BOINC_MAJOR_VERSION 5
 
 /* Minor part of BOINC version number */
-#define BOINC_MINOR_VERSION 10
+#define BOINC_MINOR_VERSION 11
 
 /* Release part of BOINC version number */
-#define BOINC_RELEASE 7
+#define BOINC_RELEASE 0
 
 /* String representation of BOINC version number */
-#define BOINC_VERSION_STRING "5.10.7"
+#define BOINC_VERSION_STRING "5.11.0"
 
 #if (defined(_WIN32) || defined(__APPLE__))
 /* Name of package */
@@ -26,13 +26,13 @@
 #define PACKAGE_NAME "BOINC"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "BOINC 5.10.7"
+#define PACKAGE_STRING "BOINC 5.11.0"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "boinc"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "5.10.7"
+#define PACKAGE_VERSION "5.11.0"
 
 #endif /* #if (defined(_WIN32) || defined(__APPLE__)) */