diff --git a/python/ChangeLog.rst b/python/ChangeLog.rst
index 19cc6b66..4c70ad5d 100644
--- a/python/ChangeLog.rst
+++ b/python/ChangeLog.rst
@@ -1,6 +1,6 @@
 0.1.8
 ======
-:release date: NOT YET RELEASED
+:release date: 2011-01-10
 
 New feature
 ------------
@@ -16,6 +16,7 @@ New feature
 
 Bugs fixed
 ----------
+* Fix segv around ``Unpacker.feed`` or ``Unpacker(file)``.
 
 
 0.1.7
diff --git a/python/setup.py b/python/setup.py
index d21e6b54..216d255b 100755
--- a/python/setup.py
+++ b/python/setup.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # coding: utf-8
-version = (0, 1, 7, 'final')
+version = (0, 1, 8, 'final')
 
 import os
 import sys
@@ -20,6 +20,8 @@ except ImportError:
 f = open('msgpack/__version__.py', 'w')
 f.write("version = %r\n" % (version,))
 f.close()
+del f
+
 version_str = '.'.join(str(x) for x in version[:3])
 if len(version) > 3 and version[3] != 'final':
     version_str += version[3]