diff --git a/README.md b/README.md
index c17569248..f8a6a2b17 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,10 @@ This means that `runc` 1.0.0 should implement the 1.0 version of the specificati
 
 You can find official releases of `runc` on the [release](https://github.com/opencontainers/runc/releases) page.
 
+Currently, the following features are not considered to be production-ready:
+
+* Support for cgroup v2
+
 ## Security
 
 The reporting process and disclosure communications are outlined in [/org/security](https://github.com/opencontainers/org/blob/master/security/).