diff --git a/src/Umbraco.Core/Collections/DeepCloneableList.cs b/src/Umbraco.Abstractions/Collections/DeepCloneableList.cs
similarity index 98%
rename from src/Umbraco.Core/Collections/DeepCloneableList.cs
rename to src/Umbraco.Abstractions/Collections/DeepCloneableList.cs
index 48d35efde9..a21c7aae56 100644
--- a/src/Umbraco.Core/Collections/DeepCloneableList.cs
+++ b/src/Umbraco.Abstractions/Collections/DeepCloneableList.cs
@@ -10,7 +10,7 @@ namespace Umbraco.Core.Collections
     /// A List that can be deep cloned with deep cloned elements and can reset the collection's items dirty flags
     /// </summary>
     /// <typeparam name="T"></typeparam>
-    internal class DeepCloneableList<T> : List<T>, IDeepCloneable, IRememberBeingDirty
+    public class DeepCloneableList<T> : List<T>, IDeepCloneable, IRememberBeingDirty
     {
         private readonly ListCloneBehavior _listCloneBehavior;
 
diff --git a/src/Umbraco.Core/Collections/ListCloneBehavior.cs b/src/Umbraco.Abstractions/Collections/ListCloneBehavior.cs
similarity index 92%
rename from src/Umbraco.Core/Collections/ListCloneBehavior.cs
rename to src/Umbraco.Abstractions/Collections/ListCloneBehavior.cs
index 14c6a0841f..539afca21a 100644
--- a/src/Umbraco.Core/Collections/ListCloneBehavior.cs
+++ b/src/Umbraco.Abstractions/Collections/ListCloneBehavior.cs
@@ -1,6 +1,6 @@
 namespace Umbraco.Core.Collections
 {
-    internal enum ListCloneBehavior
+    public enum ListCloneBehavior
     {
         /// <summary>
         /// When set, DeepClone will clone the items one time and the result list behavior will be None
diff --git a/src/Umbraco.Core/Models/ContentVariation.cs b/src/Umbraco.Abstractions/Models/ContentVariation.cs
similarity index 100%
rename from src/Umbraco.Core/Models/ContentVariation.cs
rename to src/Umbraco.Abstractions/Models/ContentVariation.cs
diff --git a/src/Umbraco.Core/Models/DoNotCloneAttribute.cs b/src/Umbraco.Abstractions/Models/DoNotCloneAttribute.cs
similarity index 100%
rename from src/Umbraco.Core/Models/DoNotCloneAttribute.cs
rename to src/Umbraco.Abstractions/Models/DoNotCloneAttribute.cs
diff --git a/src/Umbraco.Core/Models/Entities/BeingDirty.cs b/src/Umbraco.Abstractions/Models/Entities/BeingDirty.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/BeingDirty.cs
rename to src/Umbraco.Abstractions/Models/Entities/BeingDirty.cs
diff --git a/src/Umbraco.Core/Models/Entities/BeingDirtyBase.cs b/src/Umbraco.Abstractions/Models/Entities/BeingDirtyBase.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/BeingDirtyBase.cs
rename to src/Umbraco.Abstractions/Models/Entities/BeingDirtyBase.cs
diff --git a/src/Umbraco.Core/Models/Entities/ContentEntitySlim.cs b/src/Umbraco.Abstractions/Models/Entities/ContentEntitySlim.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/ContentEntitySlim.cs
rename to src/Umbraco.Abstractions/Models/Entities/ContentEntitySlim.cs
diff --git a/src/Umbraco.Core/Models/Entities/DocumentEntitySlim.cs b/src/Umbraco.Abstractions/Models/Entities/DocumentEntitySlim.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/DocumentEntitySlim.cs
rename to src/Umbraco.Abstractions/Models/Entities/DocumentEntitySlim.cs
diff --git a/src/Umbraco.Core/Models/Entities/EntitySlim.cs b/src/Umbraco.Abstractions/Models/Entities/EntitySlim.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/EntitySlim.cs
rename to src/Umbraco.Abstractions/Models/Entities/EntitySlim.cs
diff --git a/src/Umbraco.Core/Models/Entities/ICanBeDirty.cs b/src/Umbraco.Abstractions/Models/Entities/ICanBeDirty.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/ICanBeDirty.cs
rename to src/Umbraco.Abstractions/Models/Entities/ICanBeDirty.cs
diff --git a/src/Umbraco.Core/Models/Entities/IContentEntitySlim.cs b/src/Umbraco.Abstractions/Models/Entities/IContentEntitySlim.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IContentEntitySlim.cs
rename to src/Umbraco.Abstractions/Models/Entities/IContentEntitySlim.cs
diff --git a/src/Umbraco.Core/Models/Entities/IDocumentEntitySlim.cs b/src/Umbraco.Abstractions/Models/Entities/IDocumentEntitySlim.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IDocumentEntitySlim.cs
rename to src/Umbraco.Abstractions/Models/Entities/IDocumentEntitySlim.cs
diff --git a/src/Umbraco.Core/Models/Entities/IEntity.cs b/src/Umbraco.Abstractions/Models/Entities/IEntity.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IEntity.cs
rename to src/Umbraco.Abstractions/Models/Entities/IEntity.cs
diff --git a/src/Umbraco.Core/Models/Entities/IEntitySlim.cs b/src/Umbraco.Abstractions/Models/Entities/IEntitySlim.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IEntitySlim.cs
rename to src/Umbraco.Abstractions/Models/Entities/IEntitySlim.cs
diff --git a/src/Umbraco.Core/Models/Entities/IHaveAdditionalData.cs b/src/Umbraco.Abstractions/Models/Entities/IHaveAdditionalData.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IHaveAdditionalData.cs
rename to src/Umbraco.Abstractions/Models/Entities/IHaveAdditionalData.cs
diff --git a/src/Umbraco.Core/Models/Entities/IRememberBeingDirty.cs b/src/Umbraco.Abstractions/Models/Entities/IRememberBeingDirty.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IRememberBeingDirty.cs
rename to src/Umbraco.Abstractions/Models/Entities/IRememberBeingDirty.cs
diff --git a/src/Umbraco.Core/Models/Entities/ITreeEntity.cs b/src/Umbraco.Abstractions/Models/Entities/ITreeEntity.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/ITreeEntity.cs
rename to src/Umbraco.Abstractions/Models/Entities/ITreeEntity.cs
diff --git a/src/Umbraco.Core/Models/Entities/IUmbracoEntity.cs b/src/Umbraco.Abstractions/Models/Entities/IUmbracoEntity.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IUmbracoEntity.cs
rename to src/Umbraco.Abstractions/Models/Entities/IUmbracoEntity.cs
diff --git a/src/Umbraco.Core/Models/Entities/IValueObject.cs b/src/Umbraco.Abstractions/Models/Entities/IValueObject.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/IValueObject.cs
rename to src/Umbraco.Abstractions/Models/Entities/IValueObject.cs
diff --git a/src/Umbraco.Core/Models/Entities/TreeEntityPath.cs b/src/Umbraco.Abstractions/Models/Entities/TreeEntityPath.cs
similarity index 100%
rename from src/Umbraco.Core/Models/Entities/TreeEntityPath.cs
rename to src/Umbraco.Abstractions/Models/Entities/TreeEntityPath.cs
diff --git a/src/Umbraco.Core/Models/IDeepCloneable.cs b/src/Umbraco.Abstractions/Models/IDeepCloneable.cs
similarity index 100%
rename from src/Umbraco.Core/Models/IDeepCloneable.cs
rename to src/Umbraco.Abstractions/Models/IDeepCloneable.cs
diff --git a/src/Umbraco.Core/Umbraco.Core.csproj b/src/Umbraco.Core/Umbraco.Core.csproj
index 8ad836a912..51b87621f4 100755
--- a/src/Umbraco.Core/Umbraco.Core.csproj
+++ b/src/Umbraco.Core/Umbraco.Core.csproj
@@ -148,8 +148,6 @@
     <Compile Include="Cache\SingleItemsOnlyRepositoryCachePolicy.cs" />
     <Compile Include="Cache\DictionaryAppCache.cs" />
     <Compile Include="Cache\TypedCacheRefresherBase.cs" />
-    <Compile Include="Collections\DeepCloneableList.cs" />
-    <Compile Include="Collections\ListCloneBehavior.cs" />
     <Compile Include="Compose\AuditEventsComposer.cs" />
     <Compile Include="Composing\ComponentComposer.cs" />
     <Compile Include="Composing\Composers.cs" />
@@ -207,6 +205,9 @@
     <Compile Include="Migrations\Upgrade\V_8_1_0\ConvertTinyMceAndGridMediaUrlsToLocalLink.cs" />
     <Compile Include="Models\ContentBaseExtensions.cs" />
     <Compile Include="Models\CultureImpact.cs" />
+    <Compile Include="Models\DeepCloneHelper.cs" />
+    <Compile Include="Models\Entities\EntityBase.cs" />
+    <Compile Include="Models\Entities\TreeEntityBase.cs" />
     <Compile Include="Models\PublishedContent\ILivePublishedModelFactory.cs" />
     <Compile Include="Persistence\Dtos\PropertyTypeCommonDto.cs" />
     <Compile Include="Persistence\Repositories\Implement\ContentTypeCommonRepository.cs" />
@@ -418,14 +419,6 @@
     <Compile Include="Models\ContentCultureInfosCollection.cs" />
     <Compile Include="Models\DataTypeExtensions.cs" />
     <Compile Include="Models\Editors\ContentPropertyFile.cs" />
-    <Compile Include="Models\Entities\BeingDirty.cs" />
-    <Compile Include="Models\Entities\IEntitySlim.cs" />
-    <Compile Include="Models\Entities\IHaveAdditionalData.cs" />
-    <Compile Include="Models\Entities\ITreeEntity.cs" />
-    <Compile Include="Models\Entities\IContentEntitySlim.cs" />
-    <Compile Include="Models\Entities\IDocumentEntitySlim.cs" />
-    <Compile Include="Models\Entities\ContentEntitySlim.cs" />
-    <Compile Include="Models\Entities\DocumentEntitySlim.cs" />
     <Compile Include="Models\IAuditEntry.cs" />
     <Compile Include="Models\IAuditItem.cs" />
     <Compile Include="Models\IConsent.cs" />
@@ -442,7 +435,6 @@
     <Compile Include="Models\Packaging\IPackageInfo.cs" />
     <Compile Include="Models\Packaging\PackageDefinition.cs" />
     <Compile Include="Models\PathValidationExtensions.cs" />
-    <Compile Include="Models\Entities\TreeEntityBase.cs" />
     <Compile Include="Models\PropertyTagsExtensions.cs" />
     <Compile Include="Models\PublishedContent\Fallback.cs" />
     <Compile Include="Models\PublishedContent\NoopPublishedValueFallback.cs" />
@@ -654,23 +646,12 @@
     <Compile Include="Models\ContentTypeBase.cs" />
     <Compile Include="Models\ContentTypeCompositionBase.cs" />
     <Compile Include="Models\ContentTypeSort.cs" />
-    <Compile Include="Models\ContentVariation.cs" />
     <Compile Include="Models\ValueStorageType.cs" />
     <Compile Include="Models\DataType.cs" />
-    <Compile Include="Models\DeepCloneHelper.cs" />
     <Compile Include="Models\DictionaryItem.cs" />
     <Compile Include="Models\DictionaryItemExtensions.cs" />
     <Compile Include="Models\DictionaryTranslation.cs" />
-    <Compile Include="Models\DoNotCloneAttribute.cs" />
     <Compile Include="Models\Editors\ContentPropertyData.cs" />
-    <Compile Include="Models\Entities\EntityBase.cs" />
-    <Compile Include="Models\Entities\TreeEntityPath.cs" />
-    <Compile Include="Models\Entities\ICanBeDirty.cs" />
-    <Compile Include="Models\Entities\IEntity.cs" />
-    <Compile Include="Models\Entities\IRememberBeingDirty.cs" />
-    <Compile Include="Models\Entities\IUmbracoEntity.cs" />
-    <Compile Include="Models\Entities\IValueObject.cs" />
-    <Compile Include="Models\Entities\BeingDirtyBase.cs" />
     <Compile Include="Models\EntityContainer.cs" />
     <Compile Include="Models\EntityExtensions.cs" />
     <Compile Include="Models\File.cs" />
@@ -682,7 +663,6 @@
     <Compile Include="Models\IContentTypeBase.cs" />
     <Compile Include="Models\IContentTypeComposition.cs" />
     <Compile Include="Models\IDataType.cs" />
-    <Compile Include="Models\IDeepCloneable.cs" />
     <Compile Include="Models\Identity\BackOfficeIdentityUser.cs" />
     <Compile Include="Models\Identity\IdentityUser.cs" />
     <Compile Include="Models\Identity\IdentityUserClaim.cs" />
@@ -846,7 +826,6 @@
     <Compile Include="Models\TemplateNode.cs" />
     <Compile Include="Models\TemplateOnDisk.cs" />
     <Compile Include="Models\UmbracoDomain.cs" />
-    <Compile Include="Models\Entities\EntitySlim.cs" />
     <Compile Include="Models\UmbracoObjectTypes.cs" />
     <Compile Include="Models\ObjectTypes.cs" />
     <Compile Include="Models\UserExtensions.cs" />
@@ -1477,4 +1456,4 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-</Project>
+</Project>
\ No newline at end of file