diff --git a/CHANGES.rst b/CHANGES.rst
index a09517970..dd84baf00 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,7 +1,11 @@
 Changelog (Pillow)
 ==================
 
-3.0.0 (Unreleased)
+3.1.0 (unreleased)
+------------------
+
+
+3.0.0 (2015-10-01)
 ------------------
 
 - Check flush method existence for file-like object #1398
diff --git a/PIL/__init__.py b/PIL/__init__.py
index 665474f9b..87d56056f 100644
--- a/PIL/__init__.py
+++ b/PIL/__init__.py
@@ -12,7 +12,7 @@
 # ;-)
 
 VERSION = '1.1.7'  # PIL version
-PILLOW_VERSION = '3.0.0.dev0'  # Pillow
+PILLOW_VERSION = '3.1.0.dev'  # Pillow
 
 _plugins = ['BmpImagePlugin',
             'BufrStubImagePlugin',
diff --git a/_imaging.c b/_imaging.c
index 92dfc005e..24240a710 100644
--- a/_imaging.c
+++ b/_imaging.c
@@ -71,7 +71,7 @@
  * See the README file for information on usage and redistribution.
  */
 
-#define PILLOW_VERSION "3.0.0.dev0"
+#define PILLOW_VERSION "3.1.0.dev"
 
 #include "Python.h"
 
diff --git a/appveyor.yml b/appveyor.yml
index 0e3224540..b603473a1 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 3.0.pre.{build}
+version: 3.1.pre.{build}
 clone_folder: c:\pillow
 init:
 - ECHO %PYTHON%
diff --git a/setup.py b/setup.py
index 0d4bf73fd..28972ad36 100644
--- a/setup.py
+++ b/setup.py
@@ -90,7 +90,7 @@ except (ImportError, OSError):
 
 
 NAME = 'Pillow'
-PILLOW_VERSION = '3.0.0.dev0'
+PILLOW_VERSION = '3.1.0.dev'
 TCL_ROOT = None
 JPEG_ROOT = None
 JPEG2K_ROOT = None