diff --git a/HISTORY.rst b/HISTORY.rst
index 4331f34..3479cc7 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -3,6 +3,13 @@ History
 -------
 
 
+4.0.15 (2015-06-11)
+++++++++++++++++++
+
+- guess language using multiple methods, then use most accurate guess
+- use entity and type for new heartbeats api resource schema
+
+
 4.0.14 (2015-05-31)
 ++++++++++++++++++
 
diff --git a/wakatime/__about__.py b/wakatime/__about__.py
index cc20d3f..51edf6e 100644
--- a/wakatime/__about__.py
+++ b/wakatime/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'wakatime'
 __description__ = 'Common interface to the WakaTime api.'
 __url__ = 'https://github.com/wakatime/wakatime'
-__version_info__ = ('4', '0', '14')
+__version_info__ = ('4', '0', '15')
 __version__ = '.'.join(__version_info__)
 __author__ = 'Alan Hamlett'
 __author_email__ = 'alan@wakatime.com'