diff --git a/README.rst b/README.rst
index eb86b62d..9e415c4f 100644
--- a/README.rst
+++ b/README.rst
@@ -1,7 +1,7 @@
 USB Audio Shared
 ................
 
-:Latest release: 6.4.0beta0
+:Latest release: 6.4.0beta1
 :Maintainer: xross
 :Description: USB Audio Shared Components. For use in the XMOS USB Audio Refererence Designs.
 
diff --git a/module_usb_audio/devicedefines.h b/module_usb_audio/devicedefines.h
index 5de1ee28..2f7c8a9c 100644
--- a/module_usb_audio/devicedefines.h
+++ b/module_usb_audio/devicedefines.h
@@ -275,7 +275,7 @@
 /* Device release number in BCD: 0xJJMN */
 #define BCD_DEVICE_J             6
 #define BCD_DEVICE_M             4
-#define BCD_DEVICE_N             3
+#define BCD_DEVICE_N             0
 
 #ifndef BCD_DEVICE
 #define BCD_DEVICE               ((BCD_DEVICE_J << 8) | ((BCD_DEVICE_M & 0xF) << 4) | (BCD_DEVICE_N & 0xF))
diff --git a/xpd.xml b/xpd.xml
index a9bdb4f0..3e7607d7 100644
--- a/xpd.xml
+++ b/xpd.xml
@@ -20,8 +20,8 @@
         </component>
         <component description = "MIDI" type = "demoCode" scope = "General Use" path = "module_usb_midi" local = "false" id = "module_usb_midi" name = "MIDI Module for USB Audio Framework">
             <board></board>
-            <componentDependency version = "6.3.3">module_queue</componentDependency>
             <componentDependency repo = "git://github.com/xcore/sc_util" version = "1.0.3">module_xassert</componentDependency>
+            <componentDependency version = "6.4.0">module_queue</componentDependency>
             <keyword>MIDI</keyword>
         </component>
     </components>
@@ -43,7 +43,8 @@
     <release parenthash = "6dffaa379b87011dd364aaaebbcf58f08e156fe1" version = "6.3.3alpha3" githash = "2b536a00da240d713f77114da393e6baa2857521"></release>
     <release parenthash = "62fc22ffc5ca39a5917277fcb97b8d3b7f05b311" version = "6.3.3alpha4" githash = "4c4cf162049902f3e532eaae88d48eff196981a2"></release>
     <release parenthash = "b2660cf04e4705b99d027061d7576afc03d7124c" version = "6.3.3alpha5" githash = "104c70b4021d9176f8d1ff7b27741efa63f0ca7d"></release>
-    <release parenthash = "e90ed6b9ec4c366520bbc7546f463bd003f30c59" version = "6.4.0beta0"></release>
+    <release parenthash = "e90ed6b9ec4c366520bbc7546f463bd003f30c59" version = "6.4.0beta0" githash = "95a7caf8beb8afb74abe3323267710c0678dd32b"></release>
+    <release parenthash = "90eacf1170afb807c0541704fb94acb722215255" version = "6.4.0beta1"></release>
     <subpartnumber>XM-004720-SM</subpartnumber>
     <vendor>XMOS</vendor>
     <version_defines>
@@ -52,4 +53,4 @@
         <version_define name = "BCD_DEVICE_N" format = "%POINT%"></version_define>
     </version_defines>
     <xpd_version>1.0</xpd_version>
-</xpd>
+</xpd>
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