[ci skip] Prepare for 3.0.6 release
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index b6d64fb..86f51ca 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -5,7 +5,7 @@
 Version 3.0.6
 =============
 
-Release Date: Not Released
+Release Date: March 21, 2016
 
 -  General Changes