diff --git a/reactive-banana.cabal b/reactive-banana.cabal
--- a/reactive-banana.cabal
+++ b/reactive-banana.cabal
@@ -1,5 +1,5 @@
 Name:                reactive-banana
-Version:             0.8.0.2
+Version:             0.8.0.3
 Synopsis:            Library for functional reactive programming (FRP).
 Description:
     Reactive-banana is a library for Functional Reactive Programming (FRP).
@@ -58,7 +58,7 @@
                         NoMonomorphismRestriction
     
     build-depends:      base >= 4.2 && < 5,
-                        containers >= 0.3 && < 0.6,
+                        containers >= 0.5 && < 0.6,
                         transformers >= 0.2 && < 0.5,
                         vault == 0.3.*
 
diff --git a/src/Reactive/Banana/Frameworks.hs b/src/Reactive/Banana/Frameworks.hs
--- a/src/Reactive/Banana/Frameworks.hs
+++ b/src/Reactive/Banana/Frameworks.hs
@@ -16,7 +16,7 @@
     compile, Frameworks,
     module Control.Event.Handler,
     fromAddHandler, fromChanges, fromPoll,
-    reactimate, reactimate', initial, changes, imposeChanges,
+    reactimate, Future, reactimate', initial, changes, imposeChanges,
     FrameworksMoment(..), execute, liftIOLater,
     -- $liftIO
     module Control.Monad.IO.Class,
@@ -279,8 +279,8 @@
 actuate = Prim.actuate . unEN
 
 -- | Pause an event network.
--- Immediately stop producing output and
--- unregister all event handlers for inputs.
+-- Immediately stop producing output.
+-- (In a future version, it will also unregister all event handlers for inputs.)
 -- Hence, the network stops responding to input events,
 -- but it's state will be preserved.
 --