diff --git a/rfcs/0002-source-acl/README.md b/rfcs/0002-source-acl/README.md
index 9222402b56..ca9e70ede5 100644
--- a/rfcs/0002-source-acl/README.md
+++ b/rfcs/0002-source-acl/README.md
@@ -172,3 +172,4 @@ each namespace that uses the same Git or Helm repository due to the requirement
 ## Implementation History
 
 - ACL support for allowing cross-namespace access to `ImageRepositories` was first released in flux2 **v0.23.0**.
+- Disabling cross-namespace access to sources was first released in flux2 **v0.26.0**.