diff --git a/CDP4Common.NetCore.Tests/CDP4Common.NetCore.Tests.csproj b/CDP4Common.NetCore.Tests/CDP4Common.NetCore.Tests.csproj
index 8d77cdc7f..fafe73b64 100644
--- a/CDP4Common.NetCore.Tests/CDP4Common.NetCore.Tests.csproj
+++ b/CDP4Common.NetCore.Tests/CDP4Common.NetCore.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4Common-CE" Version="2.0.0" />
+        <PackageReference Include="CDP4Common-CE" Version="2.1.0" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4Common.Tests/CDP4Common.Tests.csproj b/CDP4Common.Tests/CDP4Common.Tests.csproj
index 6891cea2f..7e544b1e2 100644
--- a/CDP4Common.Tests/CDP4Common.Tests.csproj
+++ b/CDP4Common.Tests/CDP4Common.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4Common-CE" Version="2.0.0" />
+        <PackageReference Include="CDP4Common-CE" Version="2.1.0" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4Common/CDP4Common.csproj b/CDP4Common/CDP4Common.csproj
index 27622e248..8ddf0eda8 100644
--- a/CDP4Common/CDP4Common.csproj
+++ b/CDP4Common/CDP4Common.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net45;net451;net452;net46;net461;net462;net47;net471;net472;netstandard1.6;netstandard2.0</TargetFrameworks>
     <Company>RHEA System S.A.</Company>
     <Title>CDP4Common Community Edition</Title>
-    <Version>2.0.0</Version>
+    <Version>2.1.0</Version>
     <Description>CDP4 Common Class Library that contains DTOs, POCOs</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam, Merlin, Alex, Naron</Authors>
@@ -16,7 +16,7 @@
     <PackageTags>CDP CDP4 ECSS-E-TM-10-25</PackageTags>
     <PackageLicenseUrl>https://github.com/RHEAGROUP/CDP4-SDK-Community-Edition/blob/master/COPYING.LESSER</PackageLicenseUrl>
     <PackageReleaseNotes>
-      Refactor Cache using CacheKey; fixes #30
+      [Add] Relationships to Thing class that contains the relationships that the Thing is a member of; fixes #40
     </PackageReleaseNotes>
     <Configurations>Debug;Release;Dev</Configurations>
   </PropertyGroup>
diff --git a/CDP4Common/Poco/BinaryRelationship.cs b/CDP4Common/Poco/BinaryRelationship.cs
index 7d56cc7b6..972ea8cc9 100644
--- a/CDP4Common/Poco/BinaryRelationship.cs
+++ b/CDP4Common/Poco/BinaryRelationship.cs
@@ -1,5 +1,4 @@
-#region Copyright
-// --------------------------------------------------------------------------------------------------------------------
+// --------------------------------------------------------------------------------------------------------------------
 // <copyright file="BinaryRelationship.cs" company="RHEA System S.A.">
 //    Copyright (c) 2015-2019 RHEA System S.A.
 //
@@ -22,7 +21,6 @@
 //    Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 // </copyright>
 // --------------------------------------------------------------------------------------------------------------------
-#endregion
 
 namespace CDP4Common.EngineeringModelData
 {
diff --git a/CDP4Common/Poco/MultiRelationship.cs b/CDP4Common/Poco/MultiRelationship.cs
index f21ff0e5d..4f0e60317 100644
--- a/CDP4Common/Poco/MultiRelationship.cs
+++ b/CDP4Common/Poco/MultiRelationship.cs
@@ -1,5 +1,4 @@
-#region Copyright
-// --------------------------------------------------------------------------------------------------------------------
+// --------------------------------------------------------------------------------------------------------------------
 // <copyright file="MultiRelationship.cs" company="RHEA System S.A.">
 //    Copyright (c) 2015-2019 RHEA System S.A.
 //
@@ -22,7 +21,6 @@
 //    Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 // </copyright>
 // --------------------------------------------------------------------------------------------------------------------
-#endregion
 
 namespace CDP4Common.EngineeringModelData
 {
diff --git a/CDP4Common/Poco/Relationship.cs b/CDP4Common/Poco/Relationship.cs
index df1448e84..cf3575afd 100644
--- a/CDP4Common/Poco/Relationship.cs
+++ b/CDP4Common/Poco/Relationship.cs
@@ -1,5 +1,4 @@
-#region Copyright
-// --------------------------------------------------------------------------------------------------------------------
+// --------------------------------------------------------------------------------------------------------------------
 // <copyright file="Relationship.cs" company="RHEA System S.A.">
 //    Copyright (c) 2015-2019 RHEA System S.A.
 //
@@ -22,7 +21,6 @@
 //    Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 // </copyright>
 // --------------------------------------------------------------------------------------------------------------------
-#endregion
 
 namespace CDP4Common.EngineeringModelData
 {
diff --git a/CDP4Dal.NetCore.Tests/CDP4Dal.NetCore.Tests.csproj b/CDP4Dal.NetCore.Tests/CDP4Dal.NetCore.Tests.csproj
index f9700abe3..fb03459f5 100644
--- a/CDP4Dal.NetCore.Tests/CDP4Dal.NetCore.Tests.csproj
+++ b/CDP4Dal.NetCore.Tests/CDP4Dal.NetCore.Tests.csproj
@@ -11,7 +11,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4Dal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4Dal-CE" Version="4.1.0" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4Dal.Tests/CDP4Dal.Tests.csproj b/CDP4Dal.Tests/CDP4Dal.Tests.csproj
index 4c733fe19..426868c62 100644
--- a/CDP4Dal.Tests/CDP4Dal.Tests.csproj
+++ b/CDP4Dal.Tests/CDP4Dal.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4Dal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4Dal-CE" Version="4.1.0" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4Dal/CDP4Dal.csproj b/CDP4Dal/CDP4Dal.csproj
index aa57a844f..1468e6834 100644
--- a/CDP4Dal/CDP4Dal.csproj
+++ b/CDP4Dal/CDP4Dal.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net45;net451;net452;net46;net461;net462;net47;net471;net472;netstandard2.0</TargetFrameworks>
     <Company>RHEA System S.A.</Company>
     <Title>CDP4Dal Community Edition</Title>
-    <Version>4.0.0</Version>
+    <Version>4.1.0</Version>
     <Description>CDP4 Data Access Layer library, a consumer of an ECSS-E-TM-10-25 Annex C API</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam, Merlin, Alex, Naron</Authors>
@@ -16,7 +16,10 @@
     <PackageTags>CDP CDP4 ECSS-E-TM-10-25</PackageTags>
     <PackageLicenseUrl>https://github.com/RHEAGROUP/CDP4-SDK-Community-Edition/blob/master/COPYING.LESSER</PackageLicenseUrl>
     <PackageReleaseNotes>
-      [Update] to CDP4Common-CE version 2.0.0
+      [Update] to CDP4Common-CE version 2.1.0
+      [Refactor] Assembler.RemoveThingFromCache to clean Thing.Relationships
+      [Add] DomainChangedEvent
+      [Add] ISession.SwitchDomain
     </PackageReleaseNotes>
     <Configurations>Debug;Release;Dev</Configurations>
   </PropertyGroup>
@@ -24,7 +27,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4Common-CE" Version="2.0.0" />
+        <PackageReference Include="CDP4Common-CE" Version="2.1.0" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4JsonFileDal.Tests/CDP4JsonFileDal.Tests.csproj b/CDP4JsonFileDal.Tests/CDP4JsonFileDal.Tests.csproj
index 17c469583..220a0ab13 100644
--- a/CDP4JsonFileDal.Tests/CDP4JsonFileDal.Tests.csproj
+++ b/CDP4JsonFileDal.Tests/CDP4JsonFileDal.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4JsonFileDal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4JsonFileDal-CE" Version="4.0.1" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4JsonFileDal/CDP4JsonFileDal.csproj b/CDP4JsonFileDal/CDP4JsonFileDal.csproj
index 4fb52bfa2..671e41e1a 100644
--- a/CDP4JsonFileDal/CDP4JsonFileDal.csproj
+++ b/CDP4JsonFileDal/CDP4JsonFileDal.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net45;net451;net452;net46;net461;net462;net47;net471;net472</TargetFrameworks>
     <Company>RHEA System S.A.</Company>
     <Title>CDP4JsonFileDal Community Edition</Title>
-    <Version>4.0.0</Version>
+    <Version>4.0.1</Version>
     <Description>CDP4 Json File Dal Plugin</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam, Merlin, Alex, Naron</Authors>
@@ -16,8 +16,8 @@
     <PackageTags>CDP CDP4 ECSS-E-TM-10-25</PackageTags>
     <PackageLicenseUrl>https://github.com/RHEAGROUP/CDP4-SDK-Community-Edition/blob/master/COPYING.LESSER</PackageLicenseUrl>
     <PackageReleaseNotes>
-      [Update] to CDP4JsonSerializer-CE version 2.0.0
-      [Update] to CDP4Dal-CE version 4.0.0
+      [Update] to CDP4JsonSerializer-CE version 2.0.1
+      [Update] to CDP4Dal-CE version 4.1.0
     </PackageReleaseNotes>
     <Configurations>Debug;Release;Dev</Configurations>
   </PropertyGroup>
@@ -25,8 +25,8 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.0" />
-        <PackageReference Include="CDP4Dal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.1" />
+        <PackageReference Include="CDP4Dal-CE" Version="4.1.0" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4JsonSerializer.NetCore.Tests/CDP4JsonSerializer.NetCore.Tests.csproj b/CDP4JsonSerializer.NetCore.Tests/CDP4JsonSerializer.NetCore.Tests.csproj
index 1481453eb..d9bffc25e 100644
--- a/CDP4JsonSerializer.NetCore.Tests/CDP4JsonSerializer.NetCore.Tests.csproj
+++ b/CDP4JsonSerializer.NetCore.Tests/CDP4JsonSerializer.NetCore.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.0" />
+        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.1" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4JsonSerializer.Tests/CDP4JsonSerializer.Tests.csproj b/CDP4JsonSerializer.Tests/CDP4JsonSerializer.Tests.csproj
index 97a949ae1..710424028 100644
--- a/CDP4JsonSerializer.Tests/CDP4JsonSerializer.Tests.csproj
+++ b/CDP4JsonSerializer.Tests/CDP4JsonSerializer.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.0" />
+        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.1" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4JsonSerializer/CDP4JsonSerializer.csproj b/CDP4JsonSerializer/CDP4JsonSerializer.csproj
index 0a6443eb2..94e1dc84e 100644
--- a/CDP4JsonSerializer/CDP4JsonSerializer.csproj
+++ b/CDP4JsonSerializer/CDP4JsonSerializer.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net45;net451;net452;net46;net461;net462;net47;net471;net472;netstandard1.6;netstandard2.0</TargetFrameworks>
     <Company>RHEA System S.A.</Company>
     <Title>CDP4JsonSerializer Community Edition</Title>
-    <Version>2.0.0</Version>
+    <Version>2.0.1</Version>
     <Description>CDP4 JSON Serialization Library</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam, Merlin, Alex, Naron</Authors>
@@ -16,7 +16,7 @@
     <PackageTags>CDP CDP4 ECSS-E-TM-10-25 JSON</PackageTags>
     <PackageLicenseUrl>https://github.com/RHEAGROUP/CDP4-SDK-Community-Edition/blob/master/COPYING.LESSER</PackageLicenseUrl>
     <PackageReleaseNotes>
-      [Update] to CDP4Common-CE version 2.0.0
+      [Update] to CDP4Common-CE version 2.1.0
     </PackageReleaseNotes>
     <Configurations>Debug;Release;Dev</Configurations>
   </PropertyGroup>
diff --git a/CDP4ServicesDal.NetCore.Tests/CDP4ServicesDal.NetCore.Tests.csproj b/CDP4ServicesDal.NetCore.Tests/CDP4ServicesDal.NetCore.Tests.csproj
index 5b8aa4d80..abb5b158d 100644
--- a/CDP4ServicesDal.NetCore.Tests/CDP4ServicesDal.NetCore.Tests.csproj
+++ b/CDP4ServicesDal.NetCore.Tests/CDP4ServicesDal.NetCore.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4ServicesDal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4ServicesDal-CE" Version="4.0.1" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4ServicesDal.Tests/CDP4ServicesDal.Tests.csproj b/CDP4ServicesDal.Tests/CDP4ServicesDal.Tests.csproj
index c13edf36b..411c3383e 100644
--- a/CDP4ServicesDal.Tests/CDP4ServicesDal.Tests.csproj
+++ b/CDP4ServicesDal.Tests/CDP4ServicesDal.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4ServicesDal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4ServicesDal-CE" Version="4.0.1" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4ServicesDal/CDP4ServicesDal.csproj b/CDP4ServicesDal/CDP4ServicesDal.csproj
index 642d347ca..2543e893c 100644
--- a/CDP4ServicesDal/CDP4ServicesDal.csproj
+++ b/CDP4ServicesDal/CDP4ServicesDal.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net45;net451;net452;net46;net461;net462;net47;net471;net472;netstandard2.0</TargetFrameworks>
     <Company>RHEA System S.A.</Company>
     <Title>CDP4ServicesDal Community Edition</Title>
-    <Version>4.0.0</Version>
+    <Version>4.0.1</Version>
     <Description>CDP4ServicesDal Dal Plugin</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam, Merlin, Alex, Naron</Authors>
@@ -16,8 +16,8 @@
     <PackageTags>CDP CDP4 ECSS-E-TM-10-25</PackageTags>
     <PackageLicenseUrl>https://github.com/RHEAGROUP/CDP4-SDK-Community-Edition/blob/master/COPYING.LESSER</PackageLicenseUrl>
     <PackageReleaseNotes>
-      [Update] to CDP4JsonSerializer-CE version 2.0.0
-      [Update] to CDP4Dal-CE version 4.0.0
+      [Update] to CDP4JsonSerializer-CE version 2.0.1
+      [Update] to CDP4Dal-CE version 4.1.0
     </PackageReleaseNotes>
     <Configurations>Debug;Release;Dev</Configurations>
   </PropertyGroup>
@@ -25,8 +25,8 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.0" />
-        <PackageReference Include="CDP4Dal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.1" />
+        <PackageReference Include="CDP4Dal-CE" Version="4.1.0" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4WspDal.NetCore.Tests/CDP4WspDal.NetCore.Tests.csproj b/CDP4WspDal.NetCore.Tests/CDP4WspDal.NetCore.Tests.csproj
index 9616ee764..e55b0223d 100644
--- a/CDP4WspDal.NetCore.Tests/CDP4WspDal.NetCore.Tests.csproj
+++ b/CDP4WspDal.NetCore.Tests/CDP4WspDal.NetCore.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4WspDal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4WspDal-CE" Version="4.0.1" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4WspDal.Tests/CDP4WspDal.Tests.csproj b/CDP4WspDal.Tests/CDP4WspDal.Tests.csproj
index 7f9d25ad6..672276ed3 100644
--- a/CDP4WspDal.Tests/CDP4WspDal.Tests.csproj
+++ b/CDP4WspDal.Tests/CDP4WspDal.Tests.csproj
@@ -12,7 +12,7 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4WspDal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4WspDal-CE" Version="4.0.1" />
       </ItemGroup>
     </When>
 
diff --git a/CDP4WspDal/CDP4WspDal.csproj b/CDP4WspDal/CDP4WspDal.csproj
index 9b391aeb5..c4bae2b8d 100644
--- a/CDP4WspDal/CDP4WspDal.csproj
+++ b/CDP4WspDal/CDP4WspDal.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net45;net451;net452;net46;net461;net462;net47;net471;net472;netstandard2.0</TargetFrameworks>
     <Company>RHEA System S.A.</Company>
     <Title>CDP4WspDal Community Edition</Title>
-    <Version>4.0.0</Version>
+    <Version>4.0.1</Version>
     <Description>CDP4 WSP Dal Plugin</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam, Merlin, Alex, Naron</Authors>
@@ -16,8 +16,8 @@
     <PackageTags>CDP CDP4 ECSS-E-TM-10-25</PackageTags>
     <PackageLicenseUrl>https://github.com/RHEAGROUP/CDP4-SDK-Community-Edition/blob/master/COPYING.LESSER</PackageLicenseUrl>
     <PackageReleaseNotes>
-      [Update] to CDP4JsonSerializer-CE version 2.0.0
-      [Update] to CDP4Dal-CE version 4.0.0
+      [Update] to CDP4JsonSerializer-CE version 2.0.1
+      [Update] to CDP4Dal-CE version 4.1.0
     </PackageReleaseNotes>
     <Configurations>Debug;Release;Dev</Configurations>
   </PropertyGroup>
@@ -25,8 +25,8 @@
   <Choose>
     <When Condition="'$(Configuration)'=='Debug' or '$(Configuration)'=='Release'">
       <ItemGroup>
-        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.0" />
-        <PackageReference Include="CDP4Dal-CE" Version="4.0.0" />
+        <PackageReference Include="CDP4JsonSerializer-CE" Version="2.0.1" />
+        <PackageReference Include="CDP4Dal-CE" Version="4.1.0" />
       </ItemGroup>
     </When>