diff --git a/CHANGES.rst b/CHANGES.rst
index 89fe42a..41cad9f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,15 @@
 CHANGES
 =======
 
+2.0a1 (2017-03-28)
+------------------
+
+- Replace `uchardet-enhanced`_ to `uchardet`_
+- Remove Detector class
+
+.. _uchardet-enhanced: https://bitbucket.org/medoc/uchardet-enhanced/overview
+.. _uchardet: https://github.com/PyYoshi/uchardet
+
 1.1.3 (2017-02-26)
 ------------------
 
diff --git a/src/cchardet/version.py b/src/cchardet/version.py
index 7bb021e..5df003e 100644
--- a/src/cchardet/version.py
+++ b/src/cchardet/version.py
@@ -1 +1 @@
-__version__ = '1.1.3'
+__version__ = '2.0a1'