diff --git a/doc/en/GLib/CDeclCallbackAttribute.xml b/doc/en/GLib/CDeclCallbackAttribute.xml
new file mode 100644
index 000000000..c2d556004
--- /dev/null
+++ b/doc/en/GLib/CDeclCallbackAttribute.xml
@@ -0,0 +1,33 @@
+<Type Name="CDeclCallbackAttribute" FullName="GLib.CDeclCallbackAttribute">
+  <TypeSignature Language="C#" Value="public sealed class CDeclCallbackAttribute : System.Attribute" Maintainer="auto" />
+  <AssemblyInfo>
+    <AssemblyName>glib-sharp</AssemblyName>
+    <AssemblyPublicKey>[00 24 00 00 04 80 00 00 94 00 00 00 06 02 00 00 00 24 00 00 52 53 41 31 00 04 00 00 01 00 01 00 71 EB 6C 55 75 52 9C BF 72 44 F7 A6 EA 05 62 84 F9 EA E0 3B CF F2 CC 13 2C 9C 49 0A B3 09 EA B0 B5 6B CE 44 9D F5 03 D9 C0 A8 1E 52 05 85 CD BE 70 E2 FB 90 43 4B AC 04 FA 62 22 A8 00 98 B7 A1 A7 B3 AF 99 1A 41 23 24 BB 43 25 F6 B8 65 BB 64 EB F6 D1 C2 06 D5 73 2D DF BC 70 A7 38 9E E5 3E 0C 24 6E 32 79 74 1A D0 05 03 E4 98 42 E1 9B F3 7B 19 8B 40 21 26 CB 36 89 C2 EA 64 96 A4 7C B4]</AssemblyPublicKey>
+    <AssemblyVersion>2.0.0.0</AssemblyVersion>
+    <AssemblyCulture>neutral</AssemblyCulture>
+    <Attributes />
+  </AssemblyInfo>
+  <ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
+  <Docs>
+    <summary>Identifies a native callback delegate.</summary>
+    <remarks />
+  </Docs>
+  <Base>
+    <BaseTypeName>System.Attribute</BaseTypeName>
+  </Base>
+  <Interfaces />
+  <Attributes />
+  <Members>
+    <Member MemberName=".ctor">
+      <MemberSignature Language="C#" Value="public CDeclCallbackAttribute ();" />
+      <MemberType>Constructor</MemberType>
+      <ReturnValue />
+      <Parameters />
+      <Docs>
+        <summary>Creates a <see cref="T:GLib.CDeclCallbackAttribute" /></summary>
+        <returns>a <see cref="T:GLib.CDeclCallbackAttribute" /></returns>
+        <remarks>Delegates marked with this attribute are manually updated on win32 builds to add a modopt in IL which forces Cdecl calling convention.  It should be applied to any manually written native callbacks in .custom files or manual implementations of callback delegates.</remarks>
+      </Docs>
+    </Member>
+  </Members>
+</Type>
diff --git a/doc/en/GLib/ObjectManager.xml b/doc/en/GLib/ObjectManager.xml
index 9c93f8575..1e2bd77e3 100644
--- a/doc/en/GLib/ObjectManager.xml
+++ b/doc/en/GLib/ObjectManager.xml
@@ -4,14 +4,14 @@
     <AssemblyName>glib-sharp</AssemblyName>
     <AssemblyPublicKey>
     </AssemblyPublicKey>
-    <AssemblyVersion>0.0.0.0</AssemblyVersion>
+    <AssemblyVersion>2.0.0.0</AssemblyVersion>
     <AssemblyCulture>neutral</AssemblyCulture>
     <Attributes />
   </AssemblyInfo>
   <ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
   <Docs>
-    <summary>To be added</summary>
-    <remarks>To be added</remarks>
+    <summary>Manages GType to GLib.Object mapping and activation.</summary>
+    <remarks />
   </Docs>
   <Base>
     <BaseTypeName>System.Object</BaseTypeName>
@@ -30,10 +30,10 @@
         <Parameter Name="mangled" Type="System.String" />
       </Parameters>
       <Docs>
-        <summary>To be added</summary>
+        <summary>Obsolete.  Use the GType overload.</summary>
         <param name="native_name">an object of type <see cref="T:System.String" /></param>
         <param name="mangled">an object of type <see cref="T:System.String" /></param>
-        <remarks>To be added</remarks>
+        <remarks />
       </Docs>
     </Member>
     <Member MemberName="RegisterType">
@@ -48,11 +48,11 @@
         <Parameter Name="assembly" Type="System.String" />
       </Parameters>
       <Docs>
-        <summary>To be added</summary>
+        <summary>Obsolete.  Use the GType overload.</summary>
         <param name="native_name">an object of type <see cref="T:System.String" /></param>
         <param name="managed_name">an object of type <see cref="T:System.String" /></param>
         <param name="assembly">an object of type <see cref="T:System.String" /></param>
-        <remarks>To be added</remarks>
+        <remarks />
       </Docs>
     </Member>
     <Member MemberName="CreateObject">
@@ -65,10 +65,10 @@
         <Parameter Name="raw" Type="System.IntPtr" />
       </Parameters>
       <Docs>
-        <summary>To be added</summary>
+        <summary>Activates an object wrapper for a native object.</summary>
         <param name="raw">an object of type <see cref="T:System.IntPtr" /></param>
         <returns>an object of type <see cref="T:GLib.Object" /></returns>
-        <remarks>To be added</remarks>
+        <remarks>This should not need to be used by external code.</remarks>
       </Docs>
     </Member>
     <Member MemberName=".ctor">
@@ -77,10 +77,27 @@
       <ReturnValue />
       <Parameters />
       <Docs>
-        <summary>To be added</summary>
+        <summary>Do Not Use.</summary>
         <returns>an object of type <see cref="T:GLib.ObjectManager" /></returns>
-        <remarks>To be added</remarks>
+        <remarks />
+      </Docs>
+    </Member>
+    <Member MemberName="RegisterType">
+      <MemberSignature Language="C#" Value="public static void RegisterType (GLib.GType native_type, Type type);" />
+      <MemberType>Method</MemberType>
+      <ReturnValue>
+        <ReturnType>System.Void</ReturnType>
+      </ReturnValue>
+      <Parameters>
+        <Parameter Name="native_type" Type="GLib.GType" />
+        <Parameter Name="type" Type="System.Type" />
+      </Parameters>
+      <Docs>
+        <summary>Registers a GType to System.Type mapping.</summary>
+        <param name="native_type">a <see cref="T:GLib.GType" /></param>
+        <param name="type">a <see cref="T:System.Type" /></param>
+        <remarks />
       </Docs>
     </Member>
   </Members>
-</Type>
\ No newline at end of file
+</Type>