Update changelog and bump version number
diff --git a/ChangeLog b/ChangeLog
index 81beed3..8c0f4b6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+ver 3.21:
+	Add initial AVRCP support.
+	Add A2DP sink support to GStreamer plugin.
+	Fix interoperability with A2DP suspend.
+	Fix sign error in 8-subband encoder.
+	Fix handling of service classes length size.
+	Store Extended Inquiry Response data information.
+	Publish device id information through EIR.
+	Support higher baud rates for Ericcson based chips.
+
+	Note:
+	This version needs at least bluez-libs-3.21
+
 ver 3.20:
 	Fix GStreamer plugin file type detection.
 	Fix potential infinite loop in inotify support.
diff --git a/configure.in b/configure.in
index ab7865d..199a586 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
 AC_PREREQ(2.50)
 AC_INIT()
 
-AM_INIT_AUTOMAKE(bluez-utils, 3.20)
+AM_INIT_AUTOMAKE(bluez-utils, 3.21)
 AM_CONFIG_HEADER(config.h)
 
 AM_MAINTAINER_MODE