v1.6.3 version bump

Ryan Sepassi · Ryan Sepassi · commit 56643b181bc1 · 2018-05-21T15:27:59.000-07:00
PiperOrigin-RevId: 197459792
diff --git a/setup.py b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name='tensor2tensor',
-    version='1.6.2',
+    version='1.6.3',
     description='Tensor2Tensor',
     author='Google Inc.',
     author_email='no-reply@google.com',
