diff --git a/GPW_Admin/GPW_Admin.csproj b/GPW_Admin/GPW_Admin.csproj
index d9d7222..0f0aea7 100644
--- a/GPW_Admin/GPW_Admin.csproj
+++ b/GPW_Admin/GPW_Admin.csproj
@@ -60,9 +60,12 @@
       <HintPath>..\packages\elmah.corelibrary.1.2.2\lib\Elmah.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Microsoft.AspNet.SessionState.SessionStateModule, Version=1.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.AspNet.SessionState.SessionStateModule.1.1.0\lib\Net462\Microsoft.AspNet.SessionState.SessionStateModule.dll</HintPath>
+    </Reference>
     <Reference Include="Microsoft.CSharp" />
-    <Reference Include="Microsoft.Web.RedisSessionStateProvider, Version=2.2.5.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\Microsoft.Web.RedisSessionStateProvider.2.2.5\lib\net40\Microsoft.Web.RedisSessionStateProvider.dll</HintPath>
+    <Reference Include="Microsoft.Web.RedisSessionStateProvider, Version=4.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.Web.RedisSessionStateProvider.4.0.1\lib\net462\Microsoft.Web.RedisSessionStateProvider.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.12.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
diff --git a/GPW_Admin/Web.config b/GPW_Admin/Web.config
index f1915f4..9e1e4ee 100644
--- a/GPW_Admin/Web.config
+++ b/GPW_Admin/Web.config
@@ -33,9 +33,28 @@
     </httpModules>
   <sessionState mode="Custom" customProvider="MySessionStateStore">
       <providers>
-        <!-- For more details check https://github.com/Azure/aspnet-redis-providers/wiki -->
-        <add name="MySessionStateStore" type="Microsoft.Web.Redis.RedisSessionStateProvider" host="127.0.0.1" accessKey="" ssl="false" applicationName="GPW_ADM" />
-      </providers>
+        
+        <!-- For more details check https://github.com/Azure/aspnet-redis-providers/wiki --><!-- Either use 'connectionString' OR 'settingsClassName' and 'settingsMethodName' OR use 'host','port','accessKey','ssl','connectionTimeoutInMilliseconds' and 'operationTimeoutInMilliseconds'. --><!-- 'throwOnError','retryTimeoutInMilliseconds','databaseId' and 'applicationName' can be used with both options. --><!--
+          <add name="MySessionStateStore" 
+            host = "127.0.0.1" [String]
+            port = "" [number]
+            accessKey = "" [String]
+            ssl = "false" [true|false]
+            throwOnError = "true" [true|false]
+            retryTimeoutInMilliseconds = "5000" [number]
+            databaseId = "0" [number]
+            applicationName = "" [String]
+            connectionTimeoutInMilliseconds = "5000" [number]
+            operationTimeoutInMilliseconds = "1000" [number]
+            connectionString = "<Valid StackExchange.Redis connection string>" [String]
+            settingsClassName = "<Assembly qualified class name that contains settings method specified below. Which basically return 'connectionString' value>" [String]
+            settingsMethodName = "<Settings method should be defined in settingsClass. It should be public, static, does not take any parameters and should have a return type of 'String', which is basically 'connectionString' value.>" [String]
+            loggingClassName = "<Assembly qualified class name that contains logging method specified below>" [String]
+            loggingMethodName = "<Logging method should be defined in loggingClass. It should be public, static, does not take any parameters and should have a return type of System.IO.TextWriter.>" [String]
+            redisSerializerType = "<Assembly qualified class name that implements Microsoft.Web.Redis.ISerializer>" [String]
+          />
+        --><add name="MySessionStateStore" type="Microsoft.Web.Redis.RedisSessionStateProvider" host="127.0.0.1" accessKey="" ssl="false" applicationName="GPW_ADM" />
+      <add name="MySessionStateStore" type="Microsoft.Web.Redis.RedisSessionStateProvider" host="" accessKey="" ssl="true" /></providers>
     </sessionState></system.web>
   <appSettings>
     <!--Impostazione gestione serializzazione variabili in sessione (es per Redis)-->
@@ -415,6 +434,8 @@
       <add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
       <add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" preCondition="managedHandler" />
       <add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" preCondition="managedHandler" />
+      <remove name="Session" />
+      <add name="Session" type="Microsoft.AspNet.SessionState.SessionStateModuleAsync, Microsoft.AspNet.SessionState.SessionStateModule, Version=1.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" preCondition="integratedMode" />
     </modules>
     <staticContent>
       <remove fileExtension=".woff" />
diff --git a/GPW_Admin/packages.config b/GPW_Admin/packages.config
index b7483ae..71694b1 100644
--- a/GPW_Admin/packages.config
+++ b/GPW_Admin/packages.config
@@ -14,10 +14,11 @@
   <package id="Microsoft.AspNet.FriendlyUrls.Core.it" version="1.0.2" targetFramework="net462" />
   <package id="Microsoft.AspNet.ScriptManager.MSAjax" version="5.0.0" targetFramework="net462" />
   <package id="Microsoft.AspNet.ScriptManager.WebForms" version="5.0.0" targetFramework="net462" />
+  <package id="Microsoft.AspNet.SessionState.SessionStateModule" version="1.1.0" targetFramework="net462" />
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.3" targetFramework="net462" />
   <package id="Microsoft.AspNet.Web.Optimization.WebForms" version="1.1.3" targetFramework="net462" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net462" />
-  <package id="Microsoft.Web.RedisSessionStateProvider" version="2.2.5" targetFramework="net462" />
+  <package id="Microsoft.Web.RedisSessionStateProvider" version="4.0.1" targetFramework="net462" />
   <package id="Modernizr" version="2.8.3" targetFramework="net462" />
   <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net462" />
   <package id="Pipelines.Sockets.Unofficial" version="2.1.1" targetFramework="net462" />
diff --git a/Jenkinsfile b/Jenkinsfile
index 7b23ee5..0ae2fa7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -14,7 +14,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=4090']) {
+        withEnv(['NEXT_BUILD_NUMBER=4091']) {
           // env.versionNumber = VersionNumber(versionNumberString : '2.6.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '2.6.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
             env.APP_NAME = 'GPW'
diff --git a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/Microsoft.Web.RedisSessionStateProvider.2.2.5.nupkg b/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/Microsoft.Web.RedisSessionStateProvider.2.2.5.nupkg
deleted file mode 100644
index 4278e68..0000000
Binary files a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/Microsoft.Web.RedisSessionStateProvider.2.2.5.nupkg and /dev/null differ
diff --git a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/Readme.txt b/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/Readme.txt
deleted file mode 100644
index 8649649..0000000
--- a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/Readme.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-Microsoft.Web.Redis.RedisSessionStateProvider Nuget package has been added to your project.
-
-A new <sessionstate> entry has been added to your web.config. However, any existing session state entries will not have been modified. 
-If you believe you had an existing sessionstate entry, you will need to manually modify the web.config to make the Redis Session State Provider as the default.
-
-More information on Azure Redis Session State Provider can be found here - 
-Blog - http://blogs.msdn.com/b/webdev/archive/2014/05/12/announcing-asp-net-session-state-provider-for-redis-preview-release.aspx
-MSDN - http://msdn.microsoft.com/en-us/library/azure/dn690522.aspx
-
-More info on Azure Redis Cache service can be found here - 
-Blog - http://azure.microsoft.com/blog/2014/06/04/lap-around-azure-redis-cache-preview/
-MSDN - http://msdn.microsoft.com/en-us/library/azure/dn690523.aspx
-
-## Version 2.0.0
- * This release contains a breaking change from '1.*' versions in the format of key names used to store session data.  In order to support Redis Clusters, key names now include brackets. As a result of this change, existing session data will not be recognized by this session state provider. For more details: https://github.com/Azure/aspnet-redis-providers/wiki/v2.0.0-Breaking-Change-Details
\ No newline at end of file
diff --git a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/content/net40/web.config.transform b/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/content/net40/web.config.transform
deleted file mode 100644
index 366c571..0000000
--- a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/content/net40/web.config.transform
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <system.web>
-    <sessionState mode="Custom" customProvider="MySessionStateStore">
-      <providers>
-        <!-- For more details check https://github.com/Azure/aspnet-redis-providers/wiki -->
-        <!-- Either use 'connectionString' OR 'settingsClassName' and 'settingsMethodName' OR use 'host','port','accessKey','ssl','connectionTimeoutInMilliseconds' and 'operationTimeoutInMilliseconds'. -->
-        <!-- 'throwOnError','retryTimeoutInMilliseconds','databaseId' and 'applicationName' can be used with both options. -->
-        <!--
-          <add name="MySessionStateStore" 
-            host = "127.0.0.1" [String]
-            port = "" [number]
-            accessKey = "" [String]
-            ssl = "false" [true|false]
-            throwOnError = "true" [true|false]
-            retryTimeoutInMilliseconds = "5000" [number]
-            databaseId = "0" [number]
-            applicationName = "" [String]
-            connectionTimeoutInMilliseconds = "5000" [number]
-            operationTimeoutInMilliseconds = "1000" [number]
-            connectionString = "<Valid StackExchange.Redis connection string>" [String]
-            settingsClassName = "<Assembly qualified class name that contains settings method specified below. Which basically return 'connectionString' value>" [String]
-            settingsMethodName = "<Settings method should be defined in settingsClass. It should be public, static, does not take any parameters and should have a return type of 'String', which is basically 'connectionString' value.>" [String]
-            loggingClassName = "<Assembly qualified class name that contains logging method specified below>" [String]
-            loggingMethodName = "<Logging method should be defined in loggingClass. It should be public, static, does not take any parameters and should have a return type of System.IO.TextWriter.>" [String]
-            redisSerializerType = "<Assembly qualified class name that implements Microsoft.Web.Redis.ISerializer>" [String]
-          />
-        -->
-        <add name="MySessionStateStore" type="Microsoft.Web.Redis.RedisSessionStateProvider"
-             host=""
-             accessKey=""
-             ssl="true" />
-      </providers>
-    </sessionState>
-  </system.web>    
-</configuration>
\ No newline at end of file
diff --git a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/lib/net40/Microsoft.Web.RedisSessionStateProvider.dll b/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/lib/net40/Microsoft.Web.RedisSessionStateProvider.dll
deleted file mode 100644
index 9aea659..0000000
Binary files a/packages/Microsoft.Web.RedisSessionStateProvider.2.2.5/lib/net40/Microsoft.Web.RedisSessionStateProvider.dll and /dev/null differ