diff --git a/distro/changelog.xml b/distro/changelog.xml
index fbe9e7b..206eada 100644
--- a/distro/changelog.xml
+++ b/distro/changelog.xml
@@ -1,4 +1,83 @@
 <ReleaseNotes>
+	<Changeset component="org.gcube.portlets.user.databases-manager-portlet.1-2-0"
+		date="2014-10-27">
+		<Change>user timeout session management generating a
+			SessionExpiredException in order to show the session checker dialog
+			and redirect to login.
+		</Change>
+		<Change>
+			Class StatisticalManagerException created in order to manage
+			exceptions generated from the statistical
+		</Change>
+		<Change>
+			caching on sampling, smartSampling and submitQuery requests
+			added.
+		</Change>
+		<Change>
+			bug fixed in servlet in sbmitQuery method generated when a map
+			is
+			retrieved from a statisticalmanager and a user clicks cancel
+			button.
+		</Change>
+		<Change>
+			data refresh added for sampling, smartSampling and submitQuery
+			operations.
+		</Change>
+		<Change>
+			cache name changed in DBCache.
+		</Change>
+		<Change>
+			batch processing (thread) added to recover all data in the
+			tree and the
+			tables list.
+		</Change>
+		<Change>
+			data cached adding in a key the scope within a user uses the
+			portlet.
+		</Change>
+		<Change>
+			data refresh improved in the tree panel in order to
+			implement
+			the cascade refresh using a thread.Queue mechanism added to make
+			asynchronous the communication with the ThreadDataLoader.
+		</Change>
+		<Change>
+			For the functionality of TablesList the "canc" button of the
+			window that displays the tables list has been removed and has been
+			added icon at the top of the window (as well as in submitQuery and
+			Samplings dialogs). In addition, on top of the window has been also
+			removed icon that minimizes window and has been added icon that
+			maximizes the window.
+		</Change>
+		<Change>
+			bug fixed in class GxtBorderLayout in order to manage the copy
+			of grid
+			elements correctly. An element copy has been managed setting a
+			grid
+			property named disbleTextSelection and not through the double
+			click
+			and the edit event.
+		</Change>
+		<Change>
+			counter added in order to count the cache hit number and the
+			satistical manager computation number, the cache query sampling hit
+			number and the satistical manager query sampling computation number
+			to perform statistics about the effectiveness of the cache.
+		</Change>
+		<Change>
+			for submitQuery operation attributes names added in the csv
+			file.
+		</Change>
+		<Change>
+			bug fixed for the submit query operation if at the same time a
+			refresh query operation is performed. GWTdbManagerServiceImpl and
+			GxtBorderLayput classes modified.
+		</Change>
+		<Change>
+			top header in the portlet made invisible. GxtBorderLayout
+			class modified.
+		</Change>
+	</Changeset>
 	<Changeset component="org.gcube.portlets.user.databases-manager-portlet.1-1-0"
 		date="2014-09-10">
 		<Change>samplings operations, show create table and table details made