diff --git a/changelog b/changelog
index 3618a5ba..6fa4cbab 100644
--- a/changelog
+++ b/changelog
@@ -1,6 +1,17 @@
+## [1.4.0] - 2014-02-02
+### Added
+- add leancloud.File.fetch function
+- add leancloud.engine.before_update hook
+- add leancloud.Object.save_all and leancloud.Object.destroy_all function
+- add leancloud.Object.fetch_when_save flag
+- ### Updated
+- bugfix for leancloud.User._session_token is set to None when modify User object
+- bugfix for query leancloud.Role object
+
 ## [1.3.12] - 2015-12-30
 ### Updated
 - fixed engine hook current user's bug
+- access to leancloud.Object.attributes will raise a warning
 
 ## [1.3.11] - 2015-12-17
 ### Updated
diff --git a/leancloud/__init__.py b/leancloud/__init__.py
index ff0120ff..94a91642 100644
--- a/leancloud/__init__.py
+++ b/leancloud/__init__.py
@@ -35,7 +35,7 @@
 
 
 __author__ = 'asaka <lan@leancloud.rocks>'
-__version__ = '1.3.12'
+__version__ = '1.4.0'
 
 
 __all__ = [
diff --git a/setup.py b/setup.py
index 9f661704..0bf9e2e1 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name='leancloud-sdk',
-    version='1.3.12',
+    version='1.4.0',
     description='LeanCloud Python SDK',
 
     url='https://leancloud.cn/',