diff --git a/1.5/plugins/org.eclipse.epf.authoring.ui/src/org/eclipse/epf/authoring/ui/preferences/AuthoringUIPreferences.java b/1.5/plugins/org.eclipse.epf.authoring.ui/src/org/eclipse/epf/authoring/ui/preferences/AuthoringUIPreferences.java
index 2e49674..f953d54 100644
--- a/1.5/plugins/org.eclipse.epf.authoring.ui/src/org/eclipse/epf/authoring/ui/preferences/AuthoringUIPreferences.java
+++ b/1.5/plugins/org.eclipse.epf.authoring.ui/src/org/eclipse/epf/authoring/ui/preferences/AuthoringUIPreferences.java
@@ -46,7 +46,7 @@
 	
 	private static final boolean DEFAULT_ENABLE_UI_FIELDS = false;
 	
-	private static final boolean DEFAULT_ENABLE_AUTO_NAME_GEN = false;
+	private static final boolean DEFAULT_ENABLE_AUTO_NAME_GEN = true;
 
 	private static final int DEFAULT_RTE_URL_DECODING_OPTION = 2;
 	
diff --git a/1.5/plugins/org.eclipse.epf.library.ui/src/org/eclipse/epf/library/ui/preferences/LibraryUIPreferences.java b/1.5/plugins/org.eclipse.epf.library.ui/src/org/eclipse/epf/library/ui/preferences/LibraryUIPreferences.java
index 8fd8109..fcb10d6 100644
--- a/1.5/plugins/org.eclipse.epf.library.ui/src/org/eclipse/epf/library/ui/preferences/LibraryUIPreferences.java
+++ b/1.5/plugins/org.eclipse.epf.library.ui/src/org/eclipse/epf/library/ui/preferences/LibraryUIPreferences.java
@@ -124,6 +124,7 @@
 		prefStore.setDefault(NAME_VALIDATION, false);
 		prefStore.setDefault(CIRCULAR_VALIDATION, false);
 		prefStore.setDefault(UNDECLARED_VALIDATION, true);
+		prefStore.setDefault(PUBLISH_AD_FOR_ACTIVITY_EXTENSION, true);
 		
 		SupportingElementData.setDescriptorExclusiveOption(! LibraryUIPreferences.getIncludeDescriptors());
 	}
diff --git a/1.5/plugins/org.eclipse.epf.library/src/org/eclipse/epf/library/preferences/LibraryPreferences.java b/1.5/plugins/org.eclipse.epf.library/src/org/eclipse/epf/library/preferences/LibraryPreferences.java
index 119a9bb..674bc1e 100644
--- a/1.5/plugins/org.eclipse.epf.library/src/org/eclipse/epf/library/preferences/LibraryPreferences.java
+++ b/1.5/plugins/org.eclipse.epf.library/src/org/eclipse/epf/library/preferences/LibraryPreferences.java
@@ -63,7 +63,7 @@
 
 	private static final boolean DEFAULT_DISCARD_UNRESOLVED_REFERENCES = false;
 
-	private static final boolean DEFAULT_USE_NEW_EXTENDS_SEMANTICS = false;
+	private static final boolean DEFAULT_USE_NEW_EXTENDS_SEMANTICS = true;
 
 	private static final int DEFAULT_ROLE_DIAGRAM_HORIZONTAL_SPACING = 70;
 
diff --git a/1.5/plugins/org.eclipse.epf.publishing.ui/src/org/eclipse/epf/publishing/ui/preferences/PublishingUIPreferences.java b/1.5/plugins/org.eclipse.epf.publishing.ui/src/org/eclipse/epf/publishing/ui/preferences/PublishingUIPreferences.java
index 0ea1e49..e557c20 100644
--- a/1.5/plugins/org.eclipse.epf.publishing.ui/src/org/eclipse/epf/publishing/ui/preferences/PublishingUIPreferences.java
+++ b/1.5/plugins/org.eclipse.epf.publishing.ui/src/org/eclipse/epf/publishing/ui/preferences/PublishingUIPreferences.java
@@ -120,7 +120,7 @@
 		prefStore.setDefault(CHECK_EXTERNAL_LINKS, false);
 		prefStore.setDefault(CONVERT_BROKEN_LINKS, false);
 		prefStore.setDefault(PUBLISH_UNOPEN_ACTIVITY_DD, false);
-		prefStore.setDefault(PUBLISH_AD_FOR_ACTIVITY_EXTENSION, false);
+		prefStore.setDefault(PUBLISH_AD_FOR_ACTIVITY_EXTENSION, true);
 		prefStore.setDefault(LIGHT_WEIGHT_TREE, true);
 		prefStore.setDefault(EXTRA_DESCRIPTOR_INFO,
 				getDefaultExtraDescriptorInfo());