diff --git a/engine/release-notes/23.0.md b/engine/release-notes/23.0.md
index 745cc34437..2d4c388d92 100644
--- a/engine/release-notes/23.0.md
+++ b/engine/release-notes/23.0.md
@@ -45,6 +45,12 @@ Work continues towards Go module compatibility in a future release.
 
 {% include release-date.html date="2023-04-04" %}
 
+> **Note**
+> 
+> Due to an issue with CentOS 9 Stream's package repositories, packages for
+> CentOS 9 are currently unavailable. Packages for CentOS 9 may be added later,
+> or as part of the next (23.0.4) patch release.
+
 ### Bug fixes and enhancements
 
 - Fixed a number of issues that can cause Swarm encrypted overlay networks