diff --git a/aclocal/version.m4 b/aclocal/version.m4
index 6ced838f72..5cbf0335e7 100644
--- a/aclocal/version.m4
+++ b/aclocal/version.m4
@@ -1,4 +1,4 @@
 AC_DEFUN([RTEMS_VERSIONING],
-m4_define([_RTEMS_VERSION],[4.11.99.0]))
+m4_define([_RTEMS_VERSION],[5.0.0]))
 
-m4_define([_RTEMS_API],[4.12])
+m4_define([_RTEMS_API],[5.0])
diff --git a/c/src/aclocal/version.m4 b/c/src/aclocal/version.m4
index 6ced838f72..5cbf0335e7 100644
--- a/c/src/aclocal/version.m4
+++ b/c/src/aclocal/version.m4
@@ -1,4 +1,4 @@
 AC_DEFUN([RTEMS_VERSIONING],
-m4_define([_RTEMS_VERSION],[4.11.99.0]))
+m4_define([_RTEMS_VERSION],[5.0.0]))
 
-m4_define([_RTEMS_API],[4.12])
+m4_define([_RTEMS_API],[5.0])
diff --git a/cpukit/aclocal/version.m4 b/cpukit/aclocal/version.m4
index 6ced838f72..5cbf0335e7 100644
--- a/cpukit/aclocal/version.m4
+++ b/cpukit/aclocal/version.m4
@@ -1,4 +1,4 @@
 AC_DEFUN([RTEMS_VERSIONING],
-m4_define([_RTEMS_VERSION],[4.11.99.0]))
+m4_define([_RTEMS_VERSION],[5.0.0]))
 
-m4_define([_RTEMS_API],[4.12])
+m4_define([_RTEMS_API],[5.0])
diff --git a/testsuites/aclocal/version.m4 b/testsuites/aclocal/version.m4
index 6ced838f72..5cbf0335e7 100644
--- a/testsuites/aclocal/version.m4
+++ b/testsuites/aclocal/version.m4
@@ -1,4 +1,4 @@
 AC_DEFUN([RTEMS_VERSIONING],
-m4_define([_RTEMS_VERSION],[4.11.99.0]))
+m4_define([_RTEMS_VERSION],[5.0.0]))
 
-m4_define([_RTEMS_API],[4.12])
+m4_define([_RTEMS_API],[5.0])