diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
 Copyright (c) 2012 Paolo Capriotti <p.capriotti@gmail.com>
-Copyright (c) 2013 Renzo Carbonara <renzocarbonaraλgmail.com>
+Copyright (c) 2013-2014 Renzo Carbonara <renzocarbonaraλgmail.com>
 
 All rights reserved.
 
diff --git a/PEOPLE b/PEOPLE
--- a/PEOPLE
+++ b/PEOPLE
@@ -5,3 +5,4 @@
 Renzo Carbonara
 Paolo Capriotti
 Oliver Charles
+Gabriel Gonzalez
diff --git a/changelog b/changelog
new file mode 100644
--- /dev/null
+++ b/changelog
@@ -0,0 +1,23 @@
+# Version 0.3.1
+
+* Dependency upper bounds.
+
+
+# Version 0.3.0
+
+* Upgraded to work with pipes-4.0.0, creating a new backwards
+  incompatible API.
+
+* Generalize base `IO` monad to `MonadIO`.
+
+
+# Version 0.2.0.0
+
+* New backwards incompatible API.
+
+* Based on pipes-3.3 and zlib-bindings.
+
+
+# Up to version 0.1.0
+
+* Based on pipes-core and zlib-bindings.
diff --git a/pipes-zlib.cabal b/pipes-zlib.cabal
--- a/pipes-zlib.cabal
+++ b/pipes-zlib.cabal
@@ -1,9 +1,9 @@
 name:               pipes-zlib
-version:            0.3.0
+version:            0.3.1
 license:            BSD3
 license-file:       LICENSE
 Copyright:          Copyright (c) Paolo Capriotti 2012,
-                                  Renzo Carbonara 2013
+                                  Renzo Carbonara 2013-2014
 author:             Renzo Carbonara, Paolo Capriotti
 maintainer:         renzocarbonaraλgmail.com
 stability:          Experimental
@@ -14,7 +14,7 @@
 synopsis:           Zlib compression and decompression for Pipes streams
 description:        Zlib compression and decompression for Pipes streams
 cabal-version:      >=1.8
-extra-source-files: README.md PEOPLE
+extra-source-files: README.md PEOPLE changelog
 
 source-repository head
     type: git
@@ -25,7 +25,7 @@
     exposed-modules: Pipes.Zlib
     build-depends:   base             (>= 4.5 && < 5.0)
                    , transformers     (>= 0.2 && < 0.4)
-                   , pipes            (>= 4.0 && < 4.1)
+                   , pipes            (>= 4.0 && < 4.2)
                    , bytestring       (>= 0.9.2.1)
                    , zlib             (>= 0.5 && < 0.7)
                    , zlib-bindings    (>= 0.1 && < 0.2)
