diff --git a/packed_netlist.xsd b/packed_netlist.xsd
index deba4d5..90631af 100644
--- a/packed_netlist.xsd
+++ b/packed_netlist.xsd
@@ -31,7 +31,7 @@
     </xs:simpleContent>
   </xs:complexType>
 
-  <xs:complexType name="port_group">
+  <xs:complexType name="port_group" mixed="true">
     <xs:sequence>
       <xs:element name="port" type="port" minOccurs="0" maxOccurs="unbounded"/>
     </xs:sequence>
@@ -40,7 +40,7 @@
   <xs:complexType name="block">
     <xs:choice minOccurs="0" maxOccurs="unbounded">
       <xs:element name="inputs">
-        <xs:complexType>
+        <xs:complexType  mixed="true">
           <xs:choice minOccurs="0" maxOccurs="unbounded">
             <xs:element name="port" type="port"/>
             <xs:element name="port_rotation_map" type="port_rotation_map"/>
@@ -70,8 +70,11 @@
     <xs:attribute name="name" type="xs:string"/>
     <xs:attribute name="instance" type="xs:string"/>
     <xs:attribute name="mode" type="xs:string"/>
+    <xs:attribute name="architecture_id" type="xs:string"/>
+    <xs:attribute name="atom_netlist_id" type="xs:string"/>
+    <xs:attribute name="pb_type_num_modes" type="xs:integer"/>
   </xs:complexType>
 
   <xs:element name="block" type="block"/>
 
-</xs:schema>
\ No newline at end of file
+</xs:schema>
diff --git a/routing_resource.xsd b/routing_resource.xsd
index c8c689a..c297460 100644
--- a/routing_resource.xsd
+++ b/routing_resource.xsd
@@ -43,7 +43,7 @@
   </xs:complexType>
 
   <xs:complexType name="sizing">
-    <xs:attribute name="mux_trans_size" type="xs:int" use="required"/>
+    <xs:attribute name="mux_trans_size" type="xs:double" use="required"/>
     <xs:attribute name="buf_size" type="xs:double" use="required"/>
   </xs:complexType>
 
@@ -85,9 +85,25 @@
     <xs:attribute name="type" type="pin_type" use="required"/>
   </xs:complexType>
 
+  <xs:complexType name="meta">
+    <xs:simpleContent>
+      <xs:extension base="xs:string">
+        <xs:attribute name="name" type="xs:string" use="required"/>
+	<xs:attribute name="x_offset" type="xs:int"/>
+	<xs:attribute name="y_offset" type="xs:int"/>
+      </xs:extension>
+    </xs:simpleContent>
+  </xs:complexType>
+
+  <xs:complexType name="metadata">
+    <xs:sequence>
+      <xs:element name="meta" type="meta" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+
   <xs:complexType name="block_type">
     <xs:sequence>
-      <xs:element name="pin_class" type="pin_class" maxOccurs="unbounded"/>
+      <xs:element name="pin_class" type="pin_class" minOccurs="0" maxOccurs="unbounded"/>
     </xs:sequence>
     <xs:attribute name="id" type="xs:int" use="required"/>
     <xs:attribute name="name" type="xs:string" use="required"/>
@@ -162,6 +178,7 @@
       <xs:element name="loc" type="node_loc"/>
       <xs:element name="timing" type="node_timing"/>
       <xs:element name="segment" type="node_segment"/>
+      <xs:element name="metadata" type="metadata"/>
     </xs:choice>
     <xs:attribute name="id" type="xs:int" use="required"/>
     <xs:attribute name="type" type="node_type" use="required"/>
@@ -170,6 +187,10 @@
   </xs:complexType>
 
   <xs:complexType name="edge">
+    <xs:choice minOccurs="0" maxOccurs="unbounded">
+      <xs:element name="metadata" type="metadata"/>
+    </xs:choice>
+    <xs:attribute name="id" type="xs:int"/>
     <xs:attribute name="src_node" type="xs:int" use="required"/>
     <xs:attribute name="sink_node" type="xs:int" use="required"/>
     <xs:attribute name="switch_id" type="xs:int" use="required"/>
@@ -238,4 +259,4 @@
     </xs:complexType>
   </xs:element>
 
-</xs:schema>
\ No newline at end of file
+</xs:schema>