Update changelog, bump version to 1.0.0-beta4

CHANGELOG.rst

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 144e5da..3be2f4a 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,21 @@
+1.0.0-beta4
+===========
+Sep 24, 2013
+
+Features
+--------
+* Handle new blob syntax in Cassandra 2.0 by accepting bytearray
+  objects for blob values
+* Add cql_version kwarg to Cluster.__init__
+
+Bug Fixes
+---------
+* Fix KeyError when building token map with NetworkTopologyStrategy
+  keyspaces (this prevented a Cluster from successfully connecting
+  at all).
+* Don't lose default consitency level from parent PreparedStatement
+  when creating BoundStatements
+
 1.0.0-beta3
 ===========
 Sep 20, 2013

cassandra/__init__.py

diff --git a/cassandra/__init__.py b/cassandra/__init__.py
index c58f8f1..052751d 100644
--- a/cassandra/__init__.py
+++ b/cassandra/__init__.py
@@ -1,4 +1,4 @@
-__version_info__ = (1, 0, '0-beta3+')
+__version_info__ = (1, 0, '0-beta4')
 __version__ = '.'.join(map(str, __version_info__))