diff --git a/Network/HTTP/Client.hs b/Network/HTTP/Client.hs
--- a/Network/HTTP/Client.hs
+++ b/Network/HTTP/Client.hs
@@ -13,7 +13,9 @@
 -- Secure HTTP connections can be allowed by modifying the settings used for
 -- creating a manager. The simplest way to create a @Manager@ is with:
 --
--- > 'newManager' 'defaultManagerSettings'
+-- @
+-- 'newManager' 'defaultManagerSettings'
+-- @
 --
 -- The next core component is a @Request@, which represents a single HTTP
 -- request to be sent to a specific server. @Request@s allow for many settings
diff --git a/Network/HTTP/Client/Manager.hs b/Network/HTTP/Client/Manager.hs
--- a/Network/HTTP/Client/Manager.hs
+++ b/Network/HTTP/Client/Manager.hs
@@ -245,7 +245,7 @@
     mapM_ (nonEmptyMapM_ safeConnClose) $ maybe [] Map.elems m
 
 safeConnClose :: Connection -> IO ()
-safeConnClose ci = connectionClose ci `catch` \(_::SomeException) -> return ()
+safeConnClose ci = connectionClose ci `catch` \(_ :: IOException) -> return ()
 
 nonEmptyMapM_ :: Monad m => (a -> m ()) -> NonEmptyList a -> m ()
 nonEmptyMapM_ f (One x _) = f x
diff --git a/Network/HTTP/Client/Types.hs b/Network/HTTP/Client/Types.hs
--- a/Network/HTTP/Client/Types.hs
+++ b/Network/HTTP/Client/Types.hs
@@ -1,5 +1,7 @@
 {-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE DeriveFoldable #-}
 {-# LANGUAGE DeriveFunctor #-}
+{-# LANGUAGE DeriveTraversable #-}
 {-# LANGUAGE RankNTypes #-}
 module Network.HTTP.Client.Types
     ( BodyReader (..)
@@ -35,8 +37,10 @@
 import Blaze.ByteString.Builder (Builder, fromLazyByteString, fromByteString, toLazyByteString)
 import Data.Int (Int64)
 import Data.Default
+import Data.Foldable (Foldable)
 import Data.Monoid
 import Data.Time (UTCTime)
+import Data.Traversable (Traversable)
 import qualified Data.List as DL
 import Network.Socket (HostAddress)
 import Data.IORef
@@ -419,7 +423,7 @@
     --
     -- Since 0.1.0
     }
-    deriving (Show, Eq, T.Typeable, Functor)
+    deriving (Show, Eq, T.Typeable, Functor, Foldable, Traversable)
 
 newtype ResponseClose = ResponseClose { runResponseClose :: IO () }
     deriving T.Typeable
diff --git a/http-client.cabal b/http-client.cabal
--- a/http-client.cabal
+++ b/http-client.cabal
@@ -1,5 +1,5 @@
 name:                http-client
-version:             0.2.0.2
+version:             0.2.0.3
 synopsis:            An HTTP client engine, intended as a base layer for more user-friendly packages.
 description:         This codebase has been refactored from http-conduit.
 homepage:            https://github.com/snoyberg/http-client