diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 70845ef4..fbf44453 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,9 +3,10 @@
 History
 -------
 
-3.3.2 (unreleased)
+3.4.0 (2017-03-20)
 ------------------
 
+- Add adaptive sampler
 - Allow overriding one-span-per-rpc behavior
 - Allow overriding codecs in tracer initialization
 
diff --git a/jaeger_client/__init__.py b/jaeger_client/__init__.py
index ba023afe..3b3b4ba5 100644
--- a/jaeger_client/__init__.py
+++ b/jaeger_client/__init__.py
@@ -27,7 +27,7 @@
 import jaeger_client.thrift_gen as modpath
 sys.path.append(modpath.__path__[0])
 
-__version__ = '3.3.2.dev0'
+__version__ = '3.4.0'
 
 from .tracer import Tracer  # noqa
 from .config import Config  # noqa