diff --git a/CHANGES.md b/CHANGES.md
index 0e57450a..b743c812 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,9 +1,12 @@
-# Version 4.0.0
+# Version 4.0.1
 
 **Breaking Changes**
 * Switch `MemoryStreamDoubleDispose` event level from `Critical` to `Verbose` [PR #406](https://github.com/microsoft/Microsoft.IO.RecyclableMemoryStream/pull/406)
 * Drop net6.0 to simplify support for trimming [PR #409](https://github.com/microsoft/Microsoft.IO.RecyclableMemoryStream/pull/409)
 
+**Bug Fixes**
+* Guard finalizer against partial construction [PR #447](https://github.com/microsoft/Microsoft.IO.RecyclableMemoryStream/pull/447)
+
 **New Features**
 
 * Add trimming support [PR #443](https://github.com/microsoft/Microsoft.IO.RecyclableMemoryStream/pull/443) and utilize `EventSourcePrimtiives` for logging
@@ -12,6 +15,7 @@
 * Readme: Add clarity for the large pool of buffers and the GetBuffer method pertaining to the .NET max array length [PR #370](https://github.com/microsoft/Microsoft.IO.RecyclableMemoryStream/pull/370)
 * Removed workaround for [Nuget packing bug](https://github.com/dotnet/sdk/issues/11105). [PR #445](https://github.com/microsoft/Microsoft.IO.RecyclableMemoryStream/pull/445)
 
+
 # Version 3.0.1
 
 **Bug Fix**
diff --git a/src/Microsoft.IO.RecyclableMemoryStream.csproj b/src/Microsoft.IO.RecyclableMemoryStream.csproj
index ab4f121f..5c17b26b 100644
--- a/src/Microsoft.IO.RecyclableMemoryStream.csproj
+++ b/src/Microsoft.IO.RecyclableMemoryStream.csproj
@@ -7,7 +7,7 @@
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\Microsoft.IO.RecyclableMemoryStream.xml</DocumentationFile>
     <!-- NuGet properties -->
     <PackageId>Microsoft.IO.RecyclableMemoryStream</PackageId>
-    <PackageVersion>4.0.0-preview</PackageVersion>
+    <PackageVersion>4.0.1</PackageVersion>
     <Title>Microsoft.IO.RecyclableMemoryStream</Title>
     <Authors>Microsoft</Authors>
     <Description>A pooled MemoryStream allocator to decrease GC load and improve performance on highly scalable systems.</Description>
diff --git a/src/Properties/AssemblyInfo.cs b/src/Properties/AssemblyInfo.cs
index 2d244776..67bc745e 100644
--- a/src/Properties/AssemblyInfo.cs
+++ b/src/Properties/AssemblyInfo.cs
@@ -33,8 +33,8 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("4.0.0.0")]
-[assembly: AssemblyFileVersion("4.0.0.0")]
+[assembly: AssemblyVersion("4.0.1.0")]
+[assembly: AssemblyFileVersion("4.0.1.0")]
 
 [assembly: CLSCompliant(true)]