>> added changelog

Author: alixdamman

doc/source/changes/version_0_33.rst.inc

@@ -49,7 +49,8 @@ New features
 Miscellaneous improvements
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-* improved something.
+* scalar objects (i.e of type int, float, bool, string, data, time or datetime) belonging to a session
+  are now also loaded and saved when using the HDF5 or pickle format (closes :issue:`842`).
 
 
 Fixes