--- a/schema.org/drafts/changes.html	Tue Apr 10 17:10:46 2012 +0200
+++ b/schema.org/drafts/changes.html	Tue Apr 10 21:01:36 2012 +0200
@@ -60,7 +60,7 @@
 
 <ul>
 <li>Add a new type, 'Comment', whose super-type is CreativeWork.</li>
-<li>The description should be: <em>'A comment on an item - for example, a comment on a blog post.'</em></li>
+<li>The description should be: <em>'A comment on an item - for example, a comment on a blog post. The comment's content is expressed via the "text" property, and its topic via "about", properties shared with all CreativeWorks.'</em></li>
 <li>Change the description of <a href="http://schema.org/UserComments">UserComments</a> from old text, 'A comment about an item.' to new text 'The UserInteraction event in which a user comments on an item'.</li>
 <li>Add a 'text' property to the CreativeWork class, whose value is the Text of the work (and hence of a Comment also). The description should be: <em>'The textual content of this CreativeWork.''</em></li>
 </ul>
@@ -89,10 +89,10 @@
     <li>New property 'releaseNotes', expected type URL or Text, description "Description of what changed in this version." </li>
     <li>New property 'installUrl', expected type URL, description "URL at which the app may be installed, if different from the URL of the item"</li>
     <li>New property 'requirements', expected type URL or Text, description 'Component dependency requirements for application. This includes runtime environments and shared libraries that are not included in the application distribution package , but required to run the application (Examples: DirectX, Java or .NET runtime).'</li>
-    <li>New property 'featureList', expected type URL or Text, description 'Features or modules provided by this application.'</li>
+    <li>New property 'featureList', expected type URL or Text, description 'Features or modules provided by this application (and possibly required by other applications).'</li>
     <li>New property 'screenshot', expected type ImageObject or URL, description 'A link to a screenshot image of the app.'</li>
     <li>New property 'storageRequirements', expected type URL or Text, description 'Storage requirements (free space required).'</li>
-    <li>New property 'memoryRequirements', expected type Text, description 'Minimum memory requirements.'</li>
+    <li>New property 'memoryRequirements', expected type URL or Text, description 'Minimum memory requirements.'</li>
     <li>New property 'processorRequirements', expected type Text, description 'Processor architecture required to run the application (e.g. IA64)'</li>
     <li>New property 'countriesSupported', expected type Text, description 'Countries for which the application is supported. You can also provide the two-letter ISO 3166-1 alpha-2 country code.'</li>
     <li>New property, 'countriesNotSupported', expected type Text, description 'Countries for which the application is not supported. You can also provide the two-letter ISO 3166-1 alpha-2 country code.'</li>