Update changelog and bump version number
diff --git a/ChangeLog b/ChangeLog
index 19276a1..ad337a9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+ver 3.31:
+ Create device object for all pairing cases.
+ Convert authorization to internal function calls.
+ Add initial support for Headset Audio Gateway role.
+ Add generic Bluetooth helper functions for GLib.
+ Fix endiannes handling of connection handles.
+ Don't optimize when debug is enabled.
+
+ Note:
+ This version needs at least bluez-libs-3.31
+
ver 3.30:
Convert audio service into a plugin.
Convert input service into a plugin.
diff --git a/configure.in b/configure.in
index 0269d93..df0da40 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
AC_PREREQ(2.50)
AC_INIT()
-AM_INIT_AUTOMAKE(bluez-utils, 3.30)
+AM_INIT_AUTOMAKE(bluez-utils, 3.31)
AM_CONFIG_HEADER(config.h)
AM_MAINTAINER_MODE
