diff --git a/src/WebJobs.Extensions.DurableTask/Bindings/OrchestrationTriggerAttributeBindingProvider.cs b/src/WebJobs.Extensions.DurableTask/Bindings/OrchestrationTriggerAttributeBindingProvider.cs
index 3a277a505..b10240c48 100644
--- a/src/WebJobs.Extensions.DurableTask/Bindings/OrchestrationTriggerAttributeBindingProvider.cs
+++ b/src/WebJobs.Extensions.DurableTask/Bindings/OrchestrationTriggerAttributeBindingProvider.cs
@@ -234,7 +234,7 @@ private string OrchestrationContextToString(DurableOrchestrationContext arg)
                     new JProperty("isReplaying", arg.IsReplaying),
                     new JProperty("parentInstanceId", arg.ParentInstanceId),
                     new JProperty("upperSchemaVersion", SchemaVersion.V2),
-                    new JProperty("upperSchemaVersionNew", SchemaVersion.V3),
+                    new JProperty("upperSchemaVersionNew", SchemaVersion.V4),
                     new JProperty("longRunningTimerIntervalDuration", arg.LongRunningTimerIntervalLength),
                     new JProperty("maximumShortTimerDuration", arg.MaximumShortTimerDuration),
                     new JProperty("defaultHttpAsyncRequestSleepTimeMillseconds", arg.DefaultHttpAsyncRequestSleepTimeMillseconds));
diff --git a/src/WebJobs.Extensions.DurableTask/Listener/OutOfProcOrchestrationShim.cs b/src/WebJobs.Extensions.DurableTask/Listener/OutOfProcOrchestrationShim.cs
index 47d7c9092..262769aff 100644
--- a/src/WebJobs.Extensions.DurableTask/Listener/OutOfProcOrchestrationShim.cs
+++ b/src/WebJobs.Extensions.DurableTask/Listener/OutOfProcOrchestrationShim.cs
@@ -39,6 +39,7 @@ internal enum SchemaVersion
             Original = 0,
             V2 = 1,
             V3 = 2,
+            V4 = 3,
         }
 
         private enum AsyncActionType
@@ -168,7 +169,7 @@ private Task InvokeAPIFromAction(AsyncAction action, SchemaVersion schema)
                     }
 
                 case AsyncActionType.ContinueAsNew:
-                    this.context.ContinueAsNew(action.Input);
+                    this.context.ContinueAsNew(action.Input, action.PreserveUnprocessedEvents);
                     task = fireAndForgetTask;
                     break;
                 case AsyncActionType.WaitForExternalEvent:
@@ -229,6 +230,7 @@ private async Task ReplayOOProcOrchestration(AsyncAction[][] actions, SchemaVers
         {
             switch (schema)
             {
+                case SchemaVersion.V4:
                 case SchemaVersion.V3:
                 case SchemaVersion.V2:
                     // In this schema, action arrays should be 1 dimensional (1 action per yield), but due to legacy behavior they're nested within a 2-dimensional array.
@@ -313,6 +315,9 @@ private class AsyncAction
             [JsonProperty("input")]
             internal object Input { get; set; }
 
+            [JsonProperty("preserveUnprocessedEvents")]
+            internal bool PreserveUnprocessedEvents { get; set; } = false;
+
             [JsonProperty("compoundActions")]
             internal AsyncAction[] CompoundActions { get; set; }
 
diff --git a/src/WebJobs.Extensions.DurableTask/WebJobs.Extensions.DurableTask.csproj b/src/WebJobs.Extensions.DurableTask/WebJobs.Extensions.DurableTask.csproj
index 0b17fee29..f9f98625e 100644
--- a/src/WebJobs.Extensions.DurableTask/WebJobs.Extensions.DurableTask.csproj
+++ b/src/WebJobs.Extensions.DurableTask/WebJobs.Extensions.DurableTask.csproj
@@ -6,8 +6,8 @@
     <RootNamespace>Microsoft.Azure.WebJobs.Extensions.DurableTask</RootNamespace>
     <MajorVersion>2</MajorVersion>
     <MinorVersion>13</MinorVersion>
-    <PatchVersion>4</PatchVersion>
-    <VersionSuffix>$(PackageSuffix)</VersionSuffix>
+    <PatchVersion>5</PatchVersion>
+    <VersionSuffix>preview.1</VersionSuffix>
     <FileVersion>$(MajorVersion).$(MinorVersion).$(PatchVersion)</FileVersion>
     <AssemblyVersion>$(MajorVersion).0.0.0</AssemblyVersion>
     <Company>Microsoft Corporation</Company>
@@ -57,7 +57,7 @@
     <Compile Include="**/*.cs" Exclude="Auth/*.cs;Correlation/*.cs;**/obj/**/*.cs" />
     <!-- Don't increase below versions without significantly testing on Functions V1!
          Increasing these versions increments some dependencies that have binding redirects in Functions V1. -->
-    <PackageReference Include="Azure.Identity" Version="1.1.1" NoWarn="NU1902,NU1903"/> <!-- Added NoWarn as this dependency cannot be dropped due to Functions V1-->
+    <PackageReference Include="Azure.Identity" Version="1.1.1" NoWarn="NU1902,NU1903" /> <!-- Added NoWarn as this dependency cannot be dropped due to Functions V1-->
     <PackageReference Include="Microsoft.Azure.WebJobs" Version="2.3.0" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="1.0.2" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="1.0.2" />