diff --git a/CHANGES b/CHANGES
new file mode 100644
--- /dev/null
+++ b/CHANGES
@@ -0,0 +1,9 @@
+
+0.1.0 to 0.2.0:
+
+  * Added a top-level /shim/ module to import all the exposed
+    modules. Added a version number module
+
+0.1.0:
+
+  * Initial release.
diff --git a/src/ZMidi/Core.hs b/src/ZMidi/Core.hs
new file mode 100644
--- /dev/null
+++ b/src/ZMidi/Core.hs
@@ -0,0 +1,37 @@
+{-# OPTIONS -Wall #-}
+
+--------------------------------------------------------------------------------
+-- |
+-- Module      :  ZMidi.Core
+-- Copyright   :  (c) Stephen Tetley 2010
+-- License     :  BSD3
+--
+-- Maintainer  :  Stephen Tetley <stephen.tetley@gmail.com>
+-- Stability   :  unstable
+-- Portability :  As per dependencies.
+--
+-- Common interface to @ZMidi.Core@.
+--
+-- This is a /shim/ module re-exporting types and functions from
+-- the exposed ZMidi-Core modules. Just import this module to use 
+-- ZMidi-Core. 
+--
+--------------------------------------------------------------------------------
+
+
+module ZMidi.Core
+  (
+    module ZMidi.Core.Datatypes
+  , module ZMidi.Core.Pretty
+  , module ZMidi.Core.ReadFile
+  , module ZMidi.Core.VersionNumber
+  , module ZMidi.Core.WriteFile
+    
+  ) where
+
+import ZMidi.Core.Datatypes
+import ZMidi.Core.Pretty
+import ZMidi.Core.ReadFile
+import ZMidi.Core.VersionNumber
+import ZMidi.Core.WriteFile
+
diff --git a/src/ZMidi/Core/Datatypes.hs b/src/ZMidi/Core/Datatypes.hs
--- a/src/ZMidi/Core/Datatypes.hs
+++ b/src/ZMidi/Core/Datatypes.hs
@@ -64,6 +64,9 @@
 import Data.Word
 import Numeric (showHex)
 
+
+-- | TagByte is an alias to 'Word8'.
+--
 type TagByte = Word8
 
 
diff --git a/src/ZMidi/Core/VersionNumber.hs b/src/ZMidi/Core/VersionNumber.hs
new file mode 100644
--- /dev/null
+++ b/src/ZMidi/Core/VersionNumber.hs
@@ -0,0 +1,28 @@
+{-# OPTIONS -Wall #-}
+
+--------------------------------------------------------------------------------
+-- |
+-- Module      :  ZMidi.Core.VersionNumber
+-- Copyright   :  (c) Stephen Tetley 2010
+-- License     :  BSD3
+--
+-- Maintainer  :  stephen.tetley@gmail.com
+-- Stability   :  unstable
+-- Portability :  GHC
+--
+-- Version number
+--
+--------------------------------------------------------------------------------
+
+module ZMidi.Core.VersionNumber
+  ( 
+    zmidi_core_version
+
+  ) where
+
+-- | Version number
+--
+-- > (0,2,0)
+--
+zmidi_core_version :: (Int,Int,Int)
+zmidi_core_version = (0,2,0)
diff --git a/zmidi-core.cabal b/zmidi-core.cabal
--- a/zmidi-core.cabal
+++ b/zmidi-core.cabal
@@ -1,5 +1,5 @@
 name:             zmidi-core
-version:          0.1.0
+version:          0.2.0
 license:          BSD3
 license-file:     LICENSE
 copyright:        Stephen Tetley <stephen.tetley@gmail.com>
@@ -11,12 +11,20 @@
   Minimalist library to read and write MIDI files, with 
   dependencies only on ByteString and Data.Binary.
   .
-
+  Changelog:
+  . 
+  v0.1.0 to v0.2.0:
+  .
+  * Added a top-level /shim/ module to import all the exposed
+    modules. Added a version number module
+  .
+  .
 build-type:         Simple
 stability:          unstable
 cabal-version:      >= 1.2
 
 extra-source-files:
+  CHANGES,
   demo/MidiPrint.hs,
   demo/MidiCopy.hs
 
@@ -28,9 +36,11 @@
                       binary >= 0.5
   
   exposed-modules:
+    ZMidi.Core,
     ZMidi.Core.Datatypes,
     ZMidi.Core.Pretty,
     ZMidi.Core.ReadFile,
+    ZMidi.Core.VersionNumber,
     ZMidi.Core.WriteFile
 
   other-modules: