diff --git a/HISTORY.rst b/HISTORY.rst
index aa9550ef..cfbedee1 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,6 +1,17 @@
 Release History
 ===============
 
+1.4.0 (2015-??-??)
+------------------
+
+* Integrated PlatformIO with AppVeyor Windows based Continuous Integration system
+  (`issue #149 <https://github.com/platformio/platformio/issues/149>`_)
+* Added support for new Arduino based boards by *SparkFun, BQ, LightUp,
+  LowPowerLab, RedBearLab, TinyCircuits, WickedDevice* to
+  `atmelavr <http://docs.platformio.org/en/latest/platforms/atmelavr.html#boards>`__
+  platform
+
+
 1.3.0 (2015-03-27)
 ------------------
 
diff --git a/platformio/__init__.py b/platformio/__init__.py
index d8d3b7ba..a2b64bbb 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -1,7 +1,7 @@
 # Copyright (C) Ivan Kravets <me@ikravets.com>
 # See LICENSE for details.
 
-VERSION = (1, 3, 0)
+VERSION = (1, 4, "0.dev0")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"