diff --git a/Sifflet/Language/SiffML.hs b/Sifflet/Language/SiffML.hs
--- a/Sifflet/Language/SiffML.hs
+++ b/Sifflet/Language/SiffML.hs
@@ -15,7 +15,8 @@
 
 where
 
-import Text.XML.HXT.Arrow
+-- import Text.XML.HXT.Arrow
+import Text.XML.HXT.Core
 
 import Data.Number.Sifflet
 import Sifflet.Language.Expr
@@ -30,8 +31,8 @@
 -- | An XMLConsumer consumes XML
 type XMLConsumer a b = IOSLA (XIOState ()) a b
 
-defaultOptions :: [(String, String)]
-defaultOptions = [(a_indent, v_yes), (a_validate, v_no)]
+defaultOptions :: SysConfigList
+defaultOptions = [withIndent yes, withValidate no ]
 
 produceSiffMLFile :: (ToXml a) => a -> FilePath -> IO ()
 produceSiffMLFile src path = 
@@ -414,7 +415,7 @@
   {
     produceSiffMLFile src "test.xml"
   ; results <- runX (readDocument 
-                     (defaultOptions ++ [(a_trace, show traceLevel)])
+                    (defaultOptions ++ [withTrace traceLevel])
                      "test.xml" >>>
                      isElem >>> -- document root
                      getChildren >>>
diff --git a/Sifflet/UI/Window.hs b/Sifflet/UI/Window.hs
--- a/Sifflet/UI/Window.hs
+++ b/Sifflet/UI/Window.hs
@@ -56,6 +56,10 @@
 
 import Sifflet.Util
 
+
+import Data.Version
+import Paths_sifflet_lib as Paths
+
 -- ---------------------------------------------------------------------
 -- | Finding, creating, and initializing windows (VPUIWindow)
 
@@ -647,7 +651,7 @@
 -- | Text for the About dialog
 aboutText :: String
 aboutText =
-    unlines ["Sifflet version " ++ siffletVersionString,
+    unlines ["Sifflet version " ++ showVersion Paths.version,
              "Copyright (C) 2010 Gregory D. Weber",
              "",
              "BSD3 License",
@@ -656,11 +660,6 @@
              "http://mypage.iu.edu/~gdweber/software/sifflet/"
             ]
 
--- | The software version number.
--- See ACTION: RELEASE CHECKLIST for a list of
--- places where this version number needs to be synchronized.
-siffletVersionString :: String
-siffletVersionString = "1.0"
 
 showAboutDialog :: MenuItemAction
 showAboutDialog vpui = showInfoMessage "About Sifflet" aboutText >> return vpui
diff --git a/sifflet-lib.cabal b/sifflet-lib.cabal
--- a/sifflet-lib.cabal
+++ b/sifflet-lib.cabal
@@ -1,6 +1,6 @@
 name: sifflet-lib
-version: 1.1
-cabal-version: >= 1.6
+version: 1.2
+cabal-version: >= 1.8
 build-type: Simple
 license: BSD3
 license-file: LICENSE
@@ -42,7 +42,7 @@
     filepath >= 1.1 && < 1.2,
     fgl >= 5.4 && < 5.5,
     haskell98 >= 1.0.1 && < 1.0.2,
-    hxt >= 8.3 && < 8.6,
+    hxt >= 9.0 && < 9.1,
     mtl >= 1.1 && < 1.2,
     parsec >= 2.1.0.1 && < 2.3, 
     process >= 1.0 && < 1.1
@@ -51,8 +51,8 @@
   buildable: True
   extensions: ForeignFunctionInterface CPP
   ghc-options: -Wall
-  includes: gtk-2.0/gtk/gtk.h, gtk-2.0/gdk/gdk.h
-  extra-libraries: gdk-x11-2.0 gtk-x11-2.0
+--  includes: gtk-2.0/gtk/gtk.h, gtk-2.0/gdk/gdk.h
+--  extra-libraries: gdk-x11-2.0 gtk-x11-2.0
   exposed-modules: 
       Data.Number.Sifflet
     , Sifflet.Data.Geometry