Index: branches/blackosx/package/slimpkg.sh
===================================================================
--- branches/blackosx/package/slimpkg.sh	(revision 1664)
+++ branches/blackosx/package/slimpkg.sh	(revision 1665)
@@ -88,6 +88,31 @@
 	buildpackage "${1}/Core" "/" "0" "start_visible=\"false\" start_selected=\"true\"" >/dev/null 2>&1
 # End build core package
 
+# build install type
+	echo "================= Chameleon ================="
+	outline[$((outlinecount++))]="${indent[$xmlindent]}<line choice=\"InstallType\">"
+	choices[$((choicescount++))]="\t<choice\n\t\tid=\"InstallType\"\n\t\ttitle=\"InstallType_title\"\n\t\tdescription=\"InstallType_description\">\n\t</choice>\n"
+	((xmlindent++))
+	packagesidentity="org.chameleon.type"
+	
+	# build new install package 
+		mkdir -p ${1}/New/Root
+		echo "" > "${1}/New/Root/install_type_new"
+		echo "	[BUILD] New "
+        buildpackage "${1}/New" "/$chamTemp" "" "start_enabled=\"true\" selected=\"exclusive(choices['Upgrade'])\"" >/dev/null 2>&1
+	# End build new install package 
+
+	# build upgrade package 
+		mkdir -p ${1}/Upgrade/Root
+		echo "" > "${1}/Upgrade/Root/install_type_upgrade"
+		echo "	[BUILD] Upgrade "
+		buildpackage "${1}/Upgrade" "/$chamTemp" "" "start_selected=\"false\" selected=\"exclusive(choices['New'])\"" >/dev/null 2>&1
+	# End build upgrade package
+
+   ((xmlindent--))
+   outline[$((outlinecount++))]="${indent[$xmlindent]}</line>"
+# End build install type	
+
 # build Chameleon package
 	echo "================= Chameleon ================="
 	outline[$((outlinecount++))]="${indent[$xmlindent]}<line choice=\"Chameleon\">"
Index: branches/blackosx/package/Changes.txt
===================================================================
--- branches/blackosx/package/Changes.txt	(revision 1664)
+++ branches/blackosx/package/Changes.txt	(revision 1665)
@@ -1,3 +1,5 @@
+- Add option to upgrade an existing install - or more exactly, merge newly selected options with an existing /Extra folder. Also, rename an existing /Extra/com.apple.Boot.plist to /Extra/org.chameleon.Boot.plist.
+
 - Change the layout/wording displayed in the installer (English only) and give it a facelift. Adjust background image to scale to fit in the window.
 
 - Set exclusive 'None' option to default choice.