diff --git a/6 objectSwarmObserverAgents_AESOP_turtleLib_NetworkX/start.py b/6 objectSwarmObserverAgents_AESOP_turtleLib_NetworkX/start.py
index 4f21eb0..5135569 100755
--- a/6 objectSwarmObserverAgents_AESOP_turtleLib_NetworkX/start.py	
+++ b/6 objectSwarmObserverAgents_AESOP_turtleLib_NetworkX/start.py	
@@ -12,7 +12,7 @@
 
 def runSLAPP():
     global start_pyDir
-    print("\nSLAPP v3.3.5 build 20200320\n")
+    print("\nSLAPP v3.3.6 build 20200403\n")
     import os
 
     confirm = "n"
diff --git a/HISTORY.md b/HISTORY.md
index 7741e01..139b9f6 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -428,4 +428,12 @@ look at Section "Having agent classes in subfolder: the project
 fixed an error in the choice of the project if, in presence of a predefined path,
 the reply was different from "n" or "y" or "Y" or "" (enter)
 
-fixed an error in production project due to the new release of NetworX
+fixed an error in production project due to the new release of NetworkX
+
+(2020 04 03)
+
+3.3.6
+
+changes in oligopoly project with: better myGauss functioning; nicer first time series
+graphic; more robust initial input cell reactions in case of wrong replies, such as
+empty reply or blanks when a content is mandatory
diff --git a/README.md b/README.md
index 47bfc58..137a89e 100755
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ SLAPP <img src="./-pictures/slapp-logo.png" height="90" />
 
 Swarm-Like Agent Protocol in Python (3)
 
-Here you have SLAPP **3.3.5 build 20200326**, running in Python 3 (in the [SLAPP repository](http://terna.to.it/slapp_dep/) you have related material and very old versions; the 2.0.x versions are still related to Python 2).
+Here you have SLAPP **3.3.6 build 20200403**, running in Python 3 (in the [SLAPP repository](http://terna.to.it/slapp_dep/) you have related material and very old versions; the 2.0.x versions are still related to Python 2).
 
 We have here also a [**Reference Handbook**](SLAPP_Reference_Handbook.pdf) (it is still a draft and has to be improved).