diff --git a/release-notes/11.0/preview/preview3/README.md b/release-notes/11.0/preview/preview3/README.md
index 2c87caf467..e2577736c0 100644
--- a/release-notes/11.0/preview/preview3/README.md
+++ b/release-notes/11.0/preview/preview3/README.md
@@ -5,6 +5,7 @@ These notes cover the highest-value changes that shipped in .NET 11 Preview 3:
 - [Libraries](./libraries.md)
 - [Runtime](./runtime.md)
 - [SDK](./sdk.md)
+- [Containers](./containers.md)
 
 ## Languages
 
diff --git a/release-notes/11.0/preview/preview3/containers.md b/release-notes/11.0/preview/preview3/containers.md
new file mode 100644
index 0000000000..faafd0c488
--- /dev/null
+++ b/release-notes/11.0/preview/preview3/containers.md
@@ -0,0 +1,24 @@
+# Container images in .NET 11 Preview 3 - Release Notes
+
+Here's a summary of what's new for .NET container images in this Preview 3
+release:
+
+## .NET container images are now signed
+
+All .NET container images now are now cryptographically signed by Microsoft
+according to the [Notary Project] specification. See the [image signatures
+documentation] for the latest documentation on inspecting and verifying image
+signatures.
+
+Use the [Notation CLI] or the [ORAS CLI] to see details about signature
+artifacts:
+
+```console
+notation inspect mcr.microsoft.com/dotnet/sdk:11.0.100-preview.3
+oras discover mcr.microsoft.com/dotnet/sdk:11.0.100-preview.3
+```
+
+[Notary Project]: https://notaryproject.dev/docs/notary-project-overview/
+[image signatures documentation]: https://github.com/dotnet/dotnet-docker/blob/main/documentation/image-signatures.md
+[Notation CLI]: https://github.com/notaryproject/notation
+[ORAS CLI]: https://oras.land/docs/installation