diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 Extra functionality for the [Process library](http://hackage.haskell.org/package/process).
 
+ * Read process input and output as ByteStrings or Text, or write your own ProcessOutput instance.
+ * Lazy process input and output.
+ * ProcessMaker class for more flexibility in the process creation API.
+
 # Contributing
 
 This project is available on [GitHub](https://github.com/seereason/process-extras). You may contribute changes there.
diff --git a/process-extras.cabal b/process-extras.cabal
--- a/process-extras.cabal
+++ b/process-extras.cabal
@@ -1,8 +1,11 @@
 Name:               process-extras
-Version:            0.3.3.7
+Version:            0.3.3.8
 Synopsis:           Process extras
-Description:        Extra functionality for the Process library
-                    <http://hackage.haskell.org/package/process>.
+Description:        Extends <http://hackage.haskell.org/package/process>.
+                    Read process input and output as ByteStrings or
+                    Text, or write your own ProcessOutput instance.
+                    Lazy process input and output.  ProcessMaker class
+                    for more flexibility in the process creation API.
 Homepage:           https://github.com/seereason/process-extras
 License:            MIT
 License-file:       LICENSE
@@ -41,4 +44,5 @@
     process,
     bytestring,
     text,
-    deepseq >= 1.1
+    deepseq >= 1.1,
+    generic-deriving >= 1.10
diff --git a/src/System/Process/Common.hs b/src/System/Process/Common.hs
--- a/src/System/Process/Common.hs
+++ b/src/System/Process/Common.hs
@@ -1,11 +1,9 @@
 {-# LANGUAGE CPP #-}
-{-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE FunctionalDependencies #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
-{-# LANGUAGE StandaloneDeriving #-}
 {-# LANGUAGE UndecidableInstances #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 module System.Process.Common
@@ -25,6 +23,7 @@
 import Data.ListLike (null)
 import Data.ListLike.IO (ListLikeIO, hGetContents, hPutStr)
 import Data.Monoid ((<>))
+import Generics.Deriving.Instances ()
 import GHC.IO.Exception (IOErrorType(ResourceVanished), IOException(ioe_type))
 import Prelude hiding (null)
 import System.Exit (ExitCode(..))
@@ -36,12 +35,6 @@
 #if __GLASGOW_HASKELL__ <= 709
 import Control.Applicative (pure, (<$>), (<*>))
 import Data.Monoid (Monoid(mempty, mappend))
-#else
-import GHC.Generics
-
-#if __GLASGOW_HASKELL__ <= 710
-deriving instance Generic ExitCode
-#endif
 #endif
 
 #if !MIN_VERSION_deepseq(1,4,2)