diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,16 @@
+## 3.2.1
+
+* Add back `warpVersion`
+
+## 3.2.0
+
+* Major version up due to breaking changes. This is because the HTTP/2 code
+  was started over with Warp 3.1.3 due to performance issue [#470](https://github.com/yesodweb/wai/issues/470).
+* runHTTP2, runHTTP2Env, runHTTP2Settings and runHTTP2SettingsSocket were removed from the Network.Wai.Handler.Warp module.
+* The performance of HTTP/2 was drastically improved. Now the performance of HTTP/2 is almost the same as that of HTTP/1.1.
+* The logic to handle files in HTTP/2 is now identical to that in HTTP/1.1.
+* Internal stuff was removed from the Network.Wai.Handler.Warp module according to [the plan](http://www.yesodweb.com/blog/2015/06/cleaning-up-warp-apis).
+	
 ## 3.1.12
 
 * Setting lower bound for auto-update [#495](https://github.com/yesodweb/wai/issues/495)
diff --git a/Network/Wai/Handler/Warp.hs b/Network/Wai/Handler/Warp.hs
--- a/Network/Wai/Handler/Warp.hs
+++ b/Network/Wai/Handler/Warp.hs
@@ -90,6 +90,8 @@
   , pauseTimeout
   , FileInfo(..)
   , getFileInfo
+    -- * Version
+  , warpVersion
   ) where
 
 import Control.Exception (SomeException, throwIO)
@@ -102,6 +104,7 @@
 import Network.Wai (Request, Response, vault)
 import Network.Wai.Handler.Warp.FileInfoCache
 import Network.Wai.Handler.Warp.Request
+import Network.Wai.Handler.Warp.Response (warpVersion)
 import Network.Wai.Handler.Warp.Run
 import Network.Wai.Handler.Warp.Settings
 import Network.Wai.Handler.Warp.Timeout
diff --git a/warp.cabal b/warp.cabal
--- a/warp.cabal
+++ b/warp.cabal
@@ -1,5 +1,5 @@
 Name:                warp
-Version:             3.2.0
+Version:             3.2.1
 Synopsis:            A fast, light-weight web server for WAI applications.
 License:             MIT
 License-file:        LICENSE