assets/puzzles.xsd in pdd-0.12 vs assets/puzzles.xsd in pdd-0.13

@@ -64,9 +64,24 @@
           <xs:restriction base="xs:string">
             <xs:pattern value="[A-Z]+"/>
           </xs:restriction>
         </xs:simpleType>
       </xs:element>
+      <xs:element name="author" minOccurs="0">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:pattern value=".+"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:element>
+      <xs:element name="email" minOccurs="0">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:pattern value=".+"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:element>
+      <xs:element name="time" minOccurs="0" type="xs:dateTime"/>
     </xs:all>
   </xs:complexType>
   <xs:element name="puzzles">
     <xs:complexType>
       <xs:sequence>
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