diff --git a/Changelog b/Changelog
index 99be4ee..b96e658 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,8 @@
+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 222cab0..ebdf236 100644
--- a/jieba/__init__.py
+++ b/jieba/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '0.32'
+__version__ = '0.34'
 __license__ = 'MIT'
 
 import re
diff --git a/setup.py b/setup.py
index 931f7a4..a70200b 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from distutils.core import setup  
 setup(name='jieba3k',  
-      version='0.33',  
+      version='0.34',  
       description='Chinese Words Segementation Utilities',  
       author='Sun, Junyi',  
       author_email='ccnusjy@gmail.com',