diff --git a/NEWS b/NEWS
index de8c304c..60d79b62 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,11 @@
+dbus 1.13.0 (UNRELEASED)
+========================
+
+This is a new development branch for the adventurous, and comes with a
+risk of regressions. OS distributions should stay with the 1.12.x branch,
+unless they can commit to following the 1.13.x branch until it reaches
+a 1.14.0 stable release at an unspecified point in the future.
+
 dbus 1.12.0 (2017-10-30)
 ========================
 
diff --git a/configure.ac b/configure.ac
index c50d7869..00e9670e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ AC_PREREQ([2.63])
 
 m4_define([dbus_major_version], [1])
 m4_define([dbus_minor_version], [12])
-m4_define([dbus_micro_version], [0])
+m4_define([dbus_micro_version], [999])
 m4_define([dbus_version],
           [dbus_major_version.dbus_minor_version.dbus_micro_version])
 AC_INIT([dbus],[dbus_version],[https://bugs.freedesktop.org/enter_bug.cgi?product=dbus],[dbus])
@@ -38,16 +38,16 @@ AC_DEFINE_UNQUOTED(DBUS_DAEMON_NAME,"dbus-daemon",[Name of executable])
 #
 
 ## increment if the interface has additions, changes, removals.
-LT_CURRENT=22
+LT_CURRENT=23
 
 ## increment any time the source changes; set to
 ##  0 if you increment CURRENT
-LT_REVISION=3
+LT_REVISION=0
 
 ## increment if any interfaces have been added; set to 0
 ## if any interfaces have been changed or removed. removal has
 ## precedence over adding, so set to 0 if both happened.
-LT_AGE=19
+LT_AGE=20
 
 AC_SUBST(LT_CURRENT)
 AC_SUBST(LT_REVISION)