diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,9 @@
+0.2.3 - 110402
+* adjusted for version 2.2.0 of the library
+
+0.2.2 - 101203
+* removed mtl dependency (which also fixed a crash)
+
 0.2.1 - 100718
 * adjusted for version 2 of the library
 
diff --git a/dow.cabal b/dow.cabal
--- a/dow.cabal
+++ b/dow.cabal
@@ -1,5 +1,5 @@
 Name:                dow
-Version:             0.2.2
+Version:             0.2.3
 Cabal-Version:       >= 1.2
 Synopsis:            Dungeons of Wor
 Category:            game, reactivity, FRP
@@ -16,7 +16,7 @@
 
 Author:              Patai Gergely
 Maintainer:          Patai Gergely (patai@iit.bme.hu)
-Copyright:           (c) 2009, Patai Gergely
+Copyright:           (c) 2010-2011, Patai Gergely
 License:             BSD3
 License-File:        LICENSE
 Stability:           experimental
diff --git a/src/Utils.hs b/src/Utils.hs
--- a/src/Utils.hs
+++ b/src/Utils.hs
@@ -11,12 +11,6 @@
 
 infix 2 -->
 
-transfer2 x0 f s1 s2 = mfix $ \sig -> liftA3 f s1 s2 <$> delay x0 sig
-
-transfer3 x0 f s1 s2 s3 = mfix $ \sig -> liftM4 f s1 s2 s3 <$> delay x0 sig
-
-transfer4 x0 f s1 s2 s3 s4 = mfix $ \sig -> liftM5 f s1 s2 s3 s4 <$> delay x0 sig
-
 edge s = do
   s' <- delay False s
   return $ s' >>= \x -> if x then return False else s