diff --git a/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/MessageType.cs b/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/MessageType.cs
index 1afc0e0350..d4564a3c45 100644
--- a/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/MessageType.cs
+++ b/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/MessageType.cs
@@ -124,14 +124,14 @@ public static class MessageType
         public const string CustomTestHostLaunchCallback = "TestExecution.CustomTestHostLaunchCallback";
 
         /// <summary>
-        /// Test session end
+        /// Multi test runs finalization
         /// </summary>
-        public const string OnTestSessionEnd = "TestExecution.OnTestSessionEnd";
+        public const string MultiTestRunsFinalization = "TestExecution.MultiTestRunsFinalization";
 
         /// <summary>
-        /// Test session end callback
+        /// Multi test runs finalization callback
         /// </summary>
-        public const string OnTestSessionEndCallback = "TestExecution.OnTestSessionEnd";
+        public const string MultiTestRunsFinalizationCallback = "TestExecution.MultiTestRunsFinalizationCallback";
 
         /// <summary>
         /// Extensions Initialization
diff --git a/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/TestSessionCompletePayload.cs b/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/MultiTestRunsFinalizationCompletePayload.cs
similarity index 78%
rename from src/Microsoft.TestPlatform.CommunicationUtilities/Messages/TestSessionCompletePayload.cs
rename to src/Microsoft.TestPlatform.CommunicationUtilities/Messages/MultiTestRunsFinalizationCompletePayload.cs
index d280d8c44d..457f539d86 100644
--- a/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/TestSessionCompletePayload.cs
+++ b/src/Microsoft.TestPlatform.CommunicationUtilities/Messages/MultiTestRunsFinalizationCompletePayload.cs
@@ -6,12 +6,11 @@ namespace Microsoft.VisualStudio.TestPlatform.CommunicationUtilities.ObjectModel
     using System.Collections.Generic;
 
     using Microsoft.VisualStudio.TestPlatform.ObjectModel;
-    using Microsoft.VisualStudio.TestPlatform.ObjectModel.Client;
 
     /// <summary>
-    /// The test run complete payload.
+    /// Multi test runs finalization complete payload.
     /// </summary>
-    public class TestSessionCompletePayload
+    public class MultiTestRunsFinalizationCompletePayload
     {
         /// <summary>
         /// Gets or sets the attachments.
diff --git a/src/Microsoft.TestPlatform.CoreUtilities/Tracing/Interfaces/ITestPlatformEventSource.cs b/src/Microsoft.TestPlatform.CoreUtilities/Tracing/Interfaces/ITestPlatformEventSource.cs
index 961a9963bb..db84bd3bd6 100644
--- a/src/Microsoft.TestPlatform.CoreUtilities/Tracing/Interfaces/ITestPlatformEventSource.cs
+++ b/src/Microsoft.TestPlatform.CoreUtilities/Tracing/Interfaces/ITestPlatformEventSource.cs
@@ -184,52 +184,52 @@ public interface ITestPlatformEventSource
         void MetricsDisposeStop();
 
         /// <summary>
-        /// The session finalization request start.
+        /// The multi test runs finalization request start.
         /// </summary>
-        void SessionFinalizationRequestStart();
+        void MultiTestRunsFinalizationRequestStart();
 
         /// <summary>
-        /// The session finalization request stop.
+        /// The multi test runs finalization request stop.
         /// </summary>
-        void SessionFinalizationRequestStop();
+        void MultiTestRunsFinalizationRequestStop();
 
         /// <summary>
-        /// The adapter session finalization start.
+        /// The adapter multi test runs finalization start.
         /// </summary>
         /// <param name="numberOfAttachements">
         /// The number of attachements.
         /// </param>
-        void AdapterSessionFinalizationStart(long numberOfAttachements);
+        void AdapterMultiTestRunsFinalizationStart(long numberOfAttachements);
 
         /// <summary>
-        /// The adapter session finalization stop.
+        /// The adapter multi test runs finalization stop.
         /// </summary>
         /// <param name="numberOfAttachements">
         /// The number of attachements.
         /// </param>
-        void AdapterSessionFinalizationStop(long numberOfAttachements);
+        void AdapterMultiTestRunsFinalizationStop(long numberOfAttachements);
 
         /// <summary>
-        /// The session finalization start.
+        /// The multi test runs finalization start.
         /// </summary>
-        void SessionFinalizationStart();
+        void MultiTestRunsFinalizationStart();
 
         /// <summary>
-        /// The session finalization stop.
+        /// The multi test runs finalization stop.
         /// </summary>
         /// <param name="numberOfAttachements">
         /// The number of attachements.
         /// </param>
-        void SessionFinalizationStop(long numberOfAttachements);
+        void MultiTestRunsFinalizationStop(long numberOfAttachements);
 
         /// <summary>
-        /// Mark the start of translation layer session finalization request.
+        /// Mark the start of translation layer multi test runs finalization request.
         /// </summary>
-        void TranslationLayerSessionFinalizationStart();
+        void TranslationLayerMultiTestRunsFinalizationStart();
 
         /// <summary>
-        /// Mark the completion of translation layer session finalization request.
+        /// Mark the completion of translation layer multi test runs finalization request.
         /// </summary>
-        void TranslationLayerSessionFinalizationStop();
+        void TranslationLayerMultiTestRunsFinalizationStop();
     }
 }
diff --git a/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformEventSource.cs b/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformEventSource.cs
index f0444bbde6..edf6846b19 100644
--- a/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformEventSource.cs
+++ b/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformEventSource.cs
@@ -239,59 +239,59 @@ public void MetricsDisposeStop()
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.SessionFinalizationRequestStartEventId)]
-        public void SessionFinalizationRequestStart()
+        [Event(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationRequestStartEventId)]
+        public void MultiTestRunsFinalizationRequestStart()
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.SessionFinalizationRequestStartEventId);
+            this.WriteEvent(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationRequestStartEventId);
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.SessionFinalizationRequestStopEventId)]
-        public void SessionFinalizationRequestStop()
+        [Event(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationRequestStopEventId)]
+        public void MultiTestRunsFinalizationRequestStop()
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.SessionFinalizationRequestStopEventId);
+            this.WriteEvent(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationRequestStopEventId);
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.AdapterSessionFinalizationStartEventId)]
-        public void AdapterSessionFinalizationStart(long numberOfAttachements)
+        [Event(TestPlatformInstrumentationEvents.AdapterMultiTestRunsFinalizationStartEventId)]
+        public void AdapterMultiTestRunsFinalizationStart(long numberOfAttachements)
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.AdapterSessionFinalizationStartEventId, numberOfAttachements);
+            this.WriteEvent(TestPlatformInstrumentationEvents.AdapterMultiTestRunsFinalizationStartEventId, numberOfAttachements);
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.AdapterSessionFinalizationStopEventId)]
-        public void AdapterSessionFinalizationStop(long numberOfAttachements)
+        [Event(TestPlatformInstrumentationEvents.AdapterMultiTestRunsFinalizationStopEventId)]
+        public void AdapterMultiTestRunsFinalizationStop(long numberOfAttachements)
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.AdapterSessionFinalizationStopEventId, numberOfAttachements);
+            this.WriteEvent(TestPlatformInstrumentationEvents.AdapterMultiTestRunsFinalizationStopEventId, numberOfAttachements);
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.SessionFinalizationStartEventId)]
-        public void SessionFinalizationStart()
+        [Event(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationStartEventId)]
+        public void MultiTestRunsFinalizationStart()
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.SessionFinalizationStartEventId);
+            this.WriteEvent(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationStartEventId);
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.SessionFinalizationStopEventId)]
-        public void SessionFinalizationStop(long numberOfAttachements)
+        [Event(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationStopEventId)]
+        public void MultiTestRunsFinalizationStop(long numberOfAttachements)
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.SessionFinalizationStopEventId, numberOfAttachements);
+            this.WriteEvent(TestPlatformInstrumentationEvents.MultiTestRunsFinalizationStopEventId, numberOfAttachements);
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.TranslationLayerSessionFinalizationStartEventId)]
-        public void TranslationLayerSessionFinalizationStart()
+        [Event(TestPlatformInstrumentationEvents.TranslationLayerMultiTestRunsFinalizationStartEventId)]
+        public void TranslationLayerMultiTestRunsFinalizationStart()
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.TranslationLayerSessionFinalizationStartEventId);
+            this.WriteEvent(TestPlatformInstrumentationEvents.TranslationLayerMultiTestRunsFinalizationStartEventId);
         }
 
         /// <inheritdoc/>
-        [Event(TestPlatformInstrumentationEvents.TranslationLayerSessionFinalizationStopEventId)]
-        public void TranslationLayerSessionFinalizationStop()
+        [Event(TestPlatformInstrumentationEvents.TranslationLayerMultiTestRunsFinalizationStopEventId)]
+        public void TranslationLayerMultiTestRunsFinalizationStop()
         {
-            this.WriteEvent(TestPlatformInstrumentationEvents.TranslationLayerSessionFinalizationStopEventId);
+            this.WriteEvent(TestPlatformInstrumentationEvents.TranslationLayerMultiTestRunsFinalizationStopEventId);
         }
     }
 }
diff --git a/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformInstrumentationEvents.cs b/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformInstrumentationEvents.cs
index 1eadce444d..9931100f1c 100644
--- a/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformInstrumentationEvents.cs
+++ b/src/Microsoft.TestPlatform.CoreUtilities/Tracing/TestPlatformInstrumentationEvents.cs
@@ -161,41 +161,41 @@ internal class TestPlatformInstrumentationEvents
         /// <summary>
         /// The session finalization start event id.
         /// </summary>
-        public const int SessionFinalizationStartEventId = 0x40;
+        public const int MultiTestRunsFinalizationStartEventId = 0x40;
 
         /// <summary>
         /// The session finalization stop event id.
         /// </summary>
-        public const int SessionFinalizationStopEventId = 0x41;
+        public const int MultiTestRunsFinalizationStopEventId = 0x41;
 
         /// <summary>
         /// The session finalization request start event id.
         /// </summary>
-        public const int SessionFinalizationRequestStartEventId = 0x42;
+        public const int MultiTestRunsFinalizationRequestStartEventId = 0x42;
 
         /// <summary>
         /// The session finalization request stop event id.
         /// </summary>
-        public const int SessionFinalizationRequestStopEventId = 0x43;
+        public const int MultiTestRunsFinalizationRequestStopEventId = 0x43;
 
         /// <summary>
         /// The adapter session finalization start event id.
         /// </summary>
-        public const int AdapterSessionFinalizationStartEventId = 0x44;
+        public const int AdapterMultiTestRunsFinalizationStartEventId = 0x44;
 
         /// <summary>
         /// The adapter session finalization stop event id.
         /// </summary>
-        public const int AdapterSessionFinalizationStopEventId = 0x45;
+        public const int AdapterMultiTestRunsFinalizationStopEventId = 0x45;
 
         /// <summary>
         /// Events fired on session finalization start of translation layer.
         /// </summary>
-        public const int TranslationLayerSessionFinalizationStartEventId = 0x46;
+        public const int TranslationLayerMultiTestRunsFinalizationStartEventId = 0x46;
 
         /// <summary>
         /// Events fired on session finalization complete in translation layer.
         /// </summary>
-        public const int TranslationLayerSessionFinalizationStopEventId = 0x47;
+        public const int TranslationLayerMultiTestRunsFinalizationStopEventId = 0x47;
     }
 }
\ No newline at end of file
diff --git a/src/Microsoft.TestPlatform.ObjectModel/Client/Interfaces/ITestSessionEventsHandler.cs b/src/Microsoft.TestPlatform.ObjectModel/Client/Interfaces/IMultiTestRunsFinalizationCompleteEventsHandler.cs
similarity index 64%
rename from src/Microsoft.TestPlatform.ObjectModel/Client/Interfaces/ITestSessionEventsHandler.cs
rename to src/Microsoft.TestPlatform.ObjectModel/Client/Interfaces/IMultiTestRunsFinalizationCompleteEventsHandler.cs
index 70fde7bac3..3b18128664 100644
--- a/src/Microsoft.TestPlatform.ObjectModel/Client/Interfaces/ITestSessionEventsHandler.cs
+++ b/src/Microsoft.TestPlatform.ObjectModel/Client/Interfaces/IMultiTestRunsFinalizationCompleteEventsHandler.cs
@@ -6,14 +6,14 @@ namespace Microsoft.VisualStudio.TestPlatform.ObjectModel.Client
     using System.Collections.Generic;
 
     /// <summary>
-    /// Interface contract for handling test session complete events
+    /// Interface contract for handling multi test runs finalization complete events
     /// </summary>
-    public interface ITestSessionEventsHandler : ITestMessageEventHandler
+    public interface IMultiTestRunsFinalizationCompleteEventsHandler : ITestMessageEventHandler
     {
         /// <summary>
         /// Dispatch SessionComplete event to listeners.
         /// </summary>
         /// <param name="attachments">Attachments reprocessed.</param>
-        void HandleTestSessionComplete(IEnumerable<AttachmentSet> attachments);
+        void HandleMultiTestRunsFinalizationComplete(IEnumerable<AttachmentSet> attachments);
     }
 }
\ No newline at end of file
diff --git a/src/Microsoft.TestPlatform.ObjectModel/Client/Payloads/OnTestSessionEndPayload.cs b/src/Microsoft.TestPlatform.ObjectModel/Client/Payloads/MultiTestRunsFinalizationPayload.cs
similarity index 75%
rename from src/Microsoft.TestPlatform.ObjectModel/Client/Payloads/OnTestSessionEndPayload.cs
rename to src/Microsoft.TestPlatform.ObjectModel/Client/Payloads/MultiTestRunsFinalizationPayload.cs
index b0df025524..662c6dc6f6 100644
--- a/src/Microsoft.TestPlatform.ObjectModel/Client/Payloads/OnTestSessionEndPayload.cs
+++ b/src/Microsoft.TestPlatform.ObjectModel/Client/Payloads/MultiTestRunsFinalizationPayload.cs
@@ -7,9 +7,9 @@ namespace Microsoft.VisualStudio.TestPlatform.ObjectModel.Client.Payloads
     using System.Runtime.Serialization;
 
     /// <summary>
-    /// Class used to define the OnTestSessionEndPayload sent by the Vstest.console translation layers into design mode
+    /// Class used to define the MultiTestRunsFinalizationPayload sent by the Vstest.console translation layers into design mode
     /// </summary>
-    public class OnTestSessionEndPayload
+    public class MultiTestRunsFinalizationPayload
     {
         /// <summary>
         /// Settings used for the discovery request.
diff --git a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/ITranslationLayerRequestSender.cs b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/ITranslationLayerRequestSender.cs
index 2d7de0e0e6..c5187d6b3e 100644
--- a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/ITranslationLayerRequestSender.cs
+++ b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/ITranslationLayerRequestSender.cs
@@ -115,7 +115,7 @@ internal interface ITranslationLayerRequestSender : IDisposable
         /// Provides back all attachements to TestPlatform for additional processing (for example merging)
         /// </summary>
         /// <param name="attachments">List of attachements</param>
-        /// <param name="testSessionEventsHandler"></param>
-        void OnTestSessionEnd(IEnumerable<AttachmentSet> attachments, ITestSessionEventsHandler testSessionEventsHandler);
+        /// <param name="multiTestRunsFinalizationCompleteEventsHandler"></param>
+        void FinalizeMultiTestRuns(IEnumerable<AttachmentSet> attachments, IMultiTestRunsFinalizationCompleteEventsHandler multiTestRunsFinalizationCompleteEventsHandler);
     }
 }
diff --git a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/IVsTestConsoleWrapper2.cs b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/IVsTestConsoleWrapper2.cs
index 10e4a7379a..adb48aacb7 100644
--- a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/IVsTestConsoleWrapper2.cs
+++ b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Interfaces/IVsTestConsoleWrapper2.cs
@@ -17,8 +17,7 @@ public interface IVsTestConsoleWrapper2 : IVsTestConsoleWrapper
         /// Provides back all attachements to TestPlatform for additional processing (for example merging)
         /// </summary>
         /// <param name="attachments">List of attachements</param>
-        /// <param name="testSessionEventsHandler">EventHandler to receive session complete event</param>
-        void FinalizeMultiTestRuns(IEnumerable<AttachmentSet> attachments, ITestSessionEventsHandler testSessionEventsHandler);
-       // void FinalizeTests(IEnumerable<AttachmentSet> attachments, ITestSessionEventsHandler testSessionEventsHandler);
+        /// <param name="multiTestRunsFinalizationCompleteEventsHandler">EventHandler to receive session complete event</param>
+        void FinalizeMultiTestRuns(IEnumerable<AttachmentSet> attachments, IMultiTestRunsFinalizationCompleteEventsHandler multiTestRunsFinalizationCompleteEventsHandler);
     }
 }
diff --git a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.Designer.cs b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.Designer.cs
index e7fa34be5d..97fa3b3bd9 100644
--- a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.Designer.cs
+++ b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.Designer.cs
@@ -62,11 +62,11 @@ internal Resources() {
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to The active Session Finalization was aborted..
+        ///   Looks up a localized string similar to The active Multi Test Runs Finalization was aborted..
         /// </summary>
-        internal static string AbortedSessionFinalization {
+        internal static string AbortedMultiTestRunsFinalization {
             get {
-                return ResourceManager.GetString("AbortedSessionFinalization", resourceCulture);
+                return ResourceManager.GetString("AbortedMultiTestRunsFinalization", resourceCulture);
             }
         }
         
diff --git a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.resx b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.resx
index 882efb6704..c4dbc5499f 100644
--- a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.resx
+++ b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/Resources/Resources.resx
@@ -117,8 +117,8 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
-  <data name="AbortedSessionFinalization" xml:space="preserve">
-    <value>The active Session Finalization was aborted.</value>
+  <data name="AbortedMultiTestRunsFinalization" xml:space="preserve">
+    <value>The active Multi Test Runs Finalization was aborted.</value>
   </data>
   <data name="AbortedTestsDiscovery" xml:space="preserve">
     <value>The active Tests Discovery was aborted.</value>
diff --git a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleRequestSender.cs b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleRequestSender.cs
index d7ae9682f3..b0085b663c 100644
--- a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleRequestSender.cs
+++ b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleRequestSender.cs
@@ -385,7 +385,7 @@ public void EndSession()
         }
 
         /// <inheritdoc/>
-        public void OnTestSessionEnd(IEnumerable<AttachmentSet> attachments, ITestSessionEventsHandler testSessionEventsHandler)
+        public void FinalizeMultiTestRuns(IEnumerable<AttachmentSet> attachments, IMultiTestRunsFinalizationCompleteEventsHandler testSessionEventsHandler)
         {
             this.SendMessageAndListenAndReportAttachements(attachments, testSessionEventsHandler);
         }
@@ -732,35 +732,35 @@ private async Task SendMessageAndListenAndReportTestResultsAsync(string messageT
             this.testPlatformEventSource.TranslationLayerExecutionStop();
         }
 
-        private void SendMessageAndListenAndReportAttachements(IEnumerable<AttachmentSet> attachments, ITestSessionEventsHandler eventHandler)
+        private void SendMessageAndListenAndReportAttachements(IEnumerable<AttachmentSet> attachments, IMultiTestRunsFinalizationCompleteEventsHandler eventHandler)
         {
             try
             {
-                var payload = new OnTestSessionEndPayload
+                var payload = new MultiTestRunsFinalizationPayload
                 {
                     Attachments = attachments
                 };
-                this.communicationManager.SendMessage(MessageType.OnTestSessionEnd, payload);
-                var isSessionComplete = false;
+                this.communicationManager.SendMessage(MessageType.MultiTestRunsFinalization, payload);
+                var isMultiTestRunsFinalizationComplete = false;
 
                 // Cycle through the messages that the vstest.console sends.
                 // Currently each of the operations are not separate tasks since they should not each take much time.
                 // This is just a notification.
-                while (!isSessionComplete)
+                while (!isMultiTestRunsFinalizationComplete)
                 {
                     var message = this.TryReceiveMessage();
 
-                    if (string.Equals(MessageType.OnTestSessionEndCallback, message.MessageType))
+                    if (string.Equals(MessageType.MultiTestRunsFinalizationCallback, message.MessageType))
                     {
                         if (EqtTrace.IsInfoEnabled)
                         {
                             EqtTrace.Info("VsTestConsoleRequestSender.SendMessageAndListenAndReportAttachements: Process complete.");
                         }
 
-                        var testSessionCompletePayload = this.dataSerializer.DeserializePayload<TestSessionCompletePayload>(message);
+                        var multiTestRunsFinalizationCompletePayload = this.dataSerializer.DeserializePayload<MultiTestRunsFinalizationCompletePayload>(message);
 
-                        eventHandler.HandleTestSessionComplete(testSessionCompletePayload.Attachments);
-                        isSessionComplete = true;
+                        eventHandler.HandleMultiTestRunsFinalizationComplete(multiTestRunsFinalizationCompletePayload.Attachments);
+                        isMultiTestRunsFinalizationComplete = true;
                     }
                     else if (string.Equals(MessageType.TestMessage, message.MessageType))
                     {
@@ -772,8 +772,8 @@ private void SendMessageAndListenAndReportAttachements(IEnumerable<AttachmentSet
             catch (Exception exception)
             {
                 EqtTrace.Error("Aborting Test Session End Operation: {0}", exception);
-                eventHandler.HandleLogMessage(TestMessageLevel.Error, TranslationLayerResources.AbortedSessionFinalization);               
-                eventHandler.HandleTestSessionComplete(null);
+                eventHandler.HandleLogMessage(TestMessageLevel.Error, TranslationLayerResources.AbortedMultiTestRunsFinalization);               
+                eventHandler.HandleMultiTestRunsFinalizationComplete(null);
 
                 // Earlier we were closing the connection with vstest.console in case of exceptions
                 // Removing that code because vstest.console might be in a healthy state and letting the client
@@ -782,7 +782,7 @@ private void SendMessageAndListenAndReportAttachements(IEnumerable<AttachmentSet
             }
             
             // TODO: do we need events?
-            this.testPlatformEventSource.TranslationLayerSessionFinalizationStop(); 
+            this.testPlatformEventSource.TranslationLayerMultiTestRunsFinalizationStop(); 
         }
 
         private Message TryReceiveMessage()
diff --git a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleWrapper.cs b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleWrapper.cs
index 48d44765d5..689c28943a 100644
--- a/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleWrapper.cs
+++ b/src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleWrapper.cs
@@ -273,13 +273,16 @@ public void EndSession()
             this.sessionStarted = false;
         }
 
+        #endregion
+
+        #region IVsTestConsoleWrapper2
+
         /// <inheritdoc/>
-        public void OnTestSessionEnd(IEnumerable<AttachmentSet> attachments, ITestSessionEventsHandler testSessionEventsHandler)
+        public void FinalizeMultiTestRuns(IEnumerable<AttachmentSet> attachments, IMultiTestRunsFinalizationCompleteEventsHandler testSessionEventsHandler)
         {
             this.EnsureInitialized();
 
-            this.requestSender.OnTestSessionEnd(attachments, testSessionEventsHandler);
-            this.requestSender.FinalizeSession(attachments, testSessionEventsHandler);
+            this.requestSender.FinalizeMultiTestRuns(attachments, testSessionEventsHandler);
         }
 
         #endregion