diff --git a/Changelog b/Changelog
index 99be4ee..2d786f1 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,7 @@
+2014-10-20: version 0.34
+1. 提升性能，词典结构由Trie改为Prefix Set，内存占用减少2/3, 详见：https://github.com/fxsjy/jieba/pull/187；by @gumblex
+2. 修复关键词提取功能的性能问题
+
 2014-08-31: version 0.33
 1. 支持自定义stop words; by @fukuball
 2. 支持自定义idf词典; by @fukuball
diff --git a/jieba/__init__.py b/jieba/__init__.py
index 536ead8..0823383 100644
--- a/jieba/__init__.py
+++ b/jieba/__init__.py
@@ -1,5 +1,5 @@
 from __future__ import with_statement
-__version__ = '0.32'
+__version__ = '0.34'
 __license__ = 'MIT'
 
 import re
diff --git a/setup.py b/setup.py
index db06809..7f8e8ea 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from distutils.core import setup
 setup(name='jieba',
-      version='0.33',
+      version='0.34',
       description='Chinese Words Segementation Utilities',
       author='Sun, Junyi',
       author_email='ccnusjy@gmail.com',