--- a/master/index.html	Fri Dec 21 15:33:20 2012 +1100
+++ b/master/index.html	Mon Dec 31 13:03:14 2012 +1100
@@ -170,10 +170,8 @@
 
 <p>The SVG Working Group would like to thank the following people for
 contributing to this specification by raising issues that resulted
-in errata that were folded in to this document:
-M. Koray İnal,
-Sebastian Kuzminsky,
-Helder Magalhães.
+in changes:
+David Zbarsky.
 </p>
 
 <p>In addition, the SVG Working Group would like to acknowledge the

--- a/master/types.html	Fri Dec 21 15:33:20 2012 +1100
+++ b/master/types.html	Mon Dec 31 13:03:14 2012 +1100
@@ -4210,20 +4210,20 @@
 
 <pre class="idl">interface <b>SVGLocatableElement</b> : <a>SVGElement</a> {
 
-  readonly attribute <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a> <a href="types.html#__svg__SVGLocatableElement__nearestViewportElement">nearestViewportElement</a>;
-  readonly attribute <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a> <a href="types.html#__svg__SVGLocatableElement__farthestViewportElement">farthestViewportElement</a>;
+  readonly attribute <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a>? <a href="types.html#__svg__SVGLocatableElement__nearestViewportElement">nearestViewportElement</a>;
+  readonly attribute <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a>? <a href="types.html#__svg__SVGLocatableElement__farthestViewportElement">farthestViewportElement</a>;
 
   <a class="idlinterface" href="types.html#InterfaceSVGRect">SVGRect</a> <a href="types.html#__svg__SVGLocatableElement__getBBox">getBBox</a>();
   <a class="idlinterface" href="types.html#InterfaceSVGRect">SVGRect</a> <a href="types.html#__svg__SVGLocatableElement__getStrokeBBox">getStrokeBBox</a>();
-  <a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <a href="types.html#__svg__SVGLocatableElement__getCTM">getCTM</a>();
-  <a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <a href="types.html#__svg__SVGLocatableElement__getScreenCTM">getScreenCTM</a>();
-  <a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <a href="types.html#__svg__SVGLocatableElement__getTransformToElement">getTransformToElement</a>(<a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a> element);
+  <a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a>? <a href="types.html#__svg__SVGLocatableElement__getCTM">getCTM</a>();
+  <a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a>? <a href="types.html#__svg__SVGLocatableElement__getScreenCTM">getScreenCTM</a>();
+  <a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <a href="types.html#__svg__SVGLocatableElement__getTransformToElement">getTransformToElement</a>(<a class="idlinterface" href="types.html#InterfaceSVGLocatableElement">SVGLocatableElement</a> element);
 };</pre><dl class="interface">
 <dt class="attributes-header">Attributes:</dt>
 <dd>
 <dl class="attributes">
 
-<dt id="__svg__SVGLocatableElement__nearestViewportElement" class="attribute first-child"><b>nearestViewportElement</b><span class="idl-type-parenthetical"> (readonly <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a>)</span></dt>
+<dt id="__svg__SVGLocatableElement__nearestViewportElement" class="attribute first-child"><b>nearestViewportElement</b><span class="idl-type-parenthetical"> (readonly <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a>?)</span></dt>
 <dd class="attribute">
 <div>
 The element which established the current viewport. Often, the nearest
@@ -4233,7 +4233,7 @@
 </div>
 </dd>
 
-<dt id="__svg__SVGLocatableElement__farthestViewportElement" class="attribute"><b>farthestViewportElement</b><span class="idl-type-parenthetical"> (readonly <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a>)</span></dt>
+<dt id="__svg__SVGLocatableElement__farthestViewportElement" class="attribute"><b>farthestViewportElement</b><span class="idl-type-parenthetical"> (readonly <a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a>?)</span></dt>
 <dd class="attribute">
 <div>
 The farthest ancestor <a>'svg'</a> element. Null if the current element
@@ -4295,13 +4295,14 @@
 </dl>
 </dd>
 
-<dt id="__svg__SVGLocatableElement__getCTM" class="operation"><a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <b>getCTM</b>()
+<dt id="__svg__SVGLocatableElement__getCTM" class="operation"><a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a>? <b>getCTM</b>()
 </dt>
 <dd class="operation">
 <div>
 Returns the transformation matrix from current user units (i.e., after
 application of the <a>'transform'</a> property) to the viewport
-coordinate system for the <a>nearestViewportElement</a>. 
+coordinate system for the <a>nearestViewportElement</a>. Note that null 
+is returned if this element is not hooked into the document tree.
 
 
 </div>
@@ -4315,7 +4316,7 @@
 </dl>
 </dd>
 
-<dt id="__svg__SVGLocatableElement__getScreenCTM" class="operation"><a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <b>getScreenCTM</b>()
+<dt id="__svg__SVGLocatableElement__getScreenCTM" class="operation"><a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a>? <b>getScreenCTM</b>()
 </dt>
 <dd class="operation">
 <div>
@@ -4342,7 +4343,7 @@
 </dl>
 </dd>
 
-<dt id="__svg__SVGLocatableElement__getTransformToElement" class="operation"><a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <b>getTransformToElement</b>(<a class="idlinterface" href="types.html#InterfaceSVGElement">SVGElement</a> <var>element</var>)
+<dt id="__svg__SVGLocatableElement__getTransformToElement" class="operation"><a class="idlinterface" href="coords.html#InterfaceSVGMatrix">SVGMatrix</a> <b>getTransformToElement</b>(<a class="idlinterface" href="types.html#InterfaceSVGLocatableElement">SVGLocatableElement</a> <var>element</var>)
 </dt>
 <dd class="operation">
 <div>