diff --git a/xep-0226.xml b/xep-0226.xml
index d0e27dac..fc896592 100644
--- a/xep-0226.xml
+++ b/xep-0226.xml
@@ -11,6 +11,7 @@
   &LEGALNOTICE;
   <number>0226</number>
   <status>Proposed</status>
+  <lastcall>2009-11-13</lastcall>
   <type>Informational</type>
   <sig>Standards</sig>
   <approver>Council</approver>
diff --git a/xep-0227.xml b/xep-0227.xml
index c9a1e373..d0d41209 100644
--- a/xep-0227.xml
+++ b/xep-0227.xml
@@ -11,6 +11,7 @@
     &LEGALNOTICE;
     <number>0227</number>
     <status>Proposed</status>
+    <lastcall>2009-11-06</lastcall>
     <type>Standards Track</type>
     <sig>Standards</sig>
     <approver>Council</approver>
diff --git a/xep.dtd b/xep.dtd
index 2edc2907..83695529 100644
--- a/xep.dtd
+++ b/xep.dtd
@@ -27,7 +27,7 @@ THE SOFTWARE.
 <!ELEMENT xep ( header, section1* ) >
 <!ATTLIST xep
           xmlns CDATA '' >
-<!ELEMENT header ( title, abstract, legal, number, status, type, sig, approver*, dependencies, supersedes, supersededby, shortname, schemaloc*, registry?, discuss?, expires?, author+, revision+ ) >
+<!ELEMENT header ( title, abstract, legal, number, status, lastcall*, interim*, type, sig, approver*, dependencies, supersedes, supersededby, shortname, schemaloc*, registry?, discuss?, expires?, author+, revision+ ) >
 <!ELEMENT title (#PCDATA)* >
 <!ELEMENT abstract (#PCDATA)* >
 <!ELEMENT legal ( copyright, permissions, warranty, liability, conformance ) >
@@ -38,6 +38,8 @@ THE SOFTWARE.
 <!ELEMENT conformance (#PCDATA | link)* >
 <!ELEMENT number (#PCDATA)* >
 <!ELEMENT status (#PCDATA)* >
+<!ELEMENT lastcall (#PCDATA)* >
+<!ELEMENT interim EMPTY>
 <!ELEMENT type (#PCDATA)* >
 <!ELEMENT sig (#PCDATA)* >
 <!ELEMENT approver (#PCDATA)* >