diff --git a/Network/Mom/Stompl/Client/State.hs b/Network/Mom/Stompl/Client/State.hs
--- a/Network/Mom/Stompl/Client/State.hs
+++ b/Network/Mom/Stompl/Client/State.hs
@@ -53,6 +53,18 @@
   numeric = all isDigit
 
   ------------------------------------------------------------------------
+  -- strict deletes
+  ------------------------------------------------------------------------
+  delete' :: Eq a => a -> [a] -> [a]
+  delete' = deleteBy' (==) 
+
+  deleteBy' :: (a -> a -> Bool) -> a -> [a] -> [a]
+  deleteBy' _ _ [] = []
+  deleteBy' f p (x:xs) | f p x     = xs
+                       | otherwise = let !xs' = deleteBy' f p xs
+                                      in  x : xs'
+
+  ------------------------------------------------------------------------
   -- convert milliseconds to microseconds 
   ------------------------------------------------------------------------
   ms :: Int -> Int
@@ -631,15 +643,3 @@
               else return (c {conThrds = (tid, ts') : 
                                deleteBy' eq (tid, ts) (conThrds c)}, ())
 
-
-  ------------------------------------------------------------------------
-  -- Some helpers
-  ------------------------------------------------------------------------
-  delete' :: Eq a => a -> [a] -> [a]
-  delete' = deleteBy' (==) 
-
-  deleteBy' :: (a -> a -> Bool) -> a -> [a] -> [a]
-  deleteBy' _ _ [] = []
-  deleteBy' f p (x:xs) | f p x     = xs
-                       | otherwise = let !xs' = deleteBy' f p xs
-                                      in  x : xs'
diff --git a/stomp-queue.cabal b/stomp-queue.cabal
--- a/stomp-queue.cabal
+++ b/stomp-queue.cabal
@@ -1,5 +1,5 @@
 Name:            stomp-queue
-Version:         0.0.6
+Version:         0.0.7
 Cabal-Version:   >= 1.8
 Copyright:       Copyright (c) Tobias Schoofs, 2011 - 2013
 License:         LGPL
@@ -34,11 +34,22 @@
 
   .
 
-  [0.0.5] Underline functions removed, 
-          with* functions: withWriter, withPair,
-          new option for connection (ClientId),
-          Headers for broker-specific options can be passed to connection,
-          memory leaks solved.
+  [0.0.7] Fighting with hackagedb...
+
+  .
+
+  [0.0.6] Heartbeats caused a memory leak by creating 
+          many Connection instances in the connection state list.
+          The connections were lazily deleted, /i.e./ were
+          not deleted at all.
+          Connection state is now cleaned up by a strict delete.
+
+  .
+
+  [0.0.5] Underscore functions removed; 
+          with* functions: withWriter, withPair;
+          new option for connection (ClientId);
+          Headers for broker-specific options can be passed to connection.
 
   .