diff --git a/docs/releases/1.21-NOTES.md b/docs/releases/1.21-NOTES.md
index 67aa8cab80611..32498271fe7ef 100644
--- a/docs/releases/1.21-NOTES.md
+++ b/docs/releases/1.21-NOTES.md
@@ -4,6 +4,8 @@
 
 # Significant changes
 
+* Protokube now runs as a systemd process rather than a docker container.
+
 # Breaking changes
 
 # Required Actions
@@ -11,6 +13,7 @@
 # Deprecations
 
 * Support for Kubernetes versions 1.15 and 1.16 are deprecated and will be removed in kOps 1.22.
+* Support for launch configurations has been removed in favour of launch templates.
 
 # Full change list since 1.21.0 release