diff --git a/bitnami/kafka/README.md b/bitnami/kafka/README.md
index 63a31a4d21..3b0abdb2d1 100644
--- a/bitnami/kafka/README.md
+++ b/bitnami/kafka/README.md
@@ -864,6 +864,10 @@ Find more information about how to deal with common errors related to Bitnami's
 
 ## Upgrading
 
+### To 21.0.0
+
+This major updates Kafka to its newest version, 3.4.x. For more information, please refer to [kafka upgrade notes](https://kafka.apache.org/34/documentation.html#upgrade).
+
 ### To 20.0.0
 
 This major updates the Zookeeper subchart to it newest major, 11.0.0. For more information on this subchart's major, please refer to [zookeeper upgrade notes](https://github.com/bitnami/charts/tree/main/bitnami/zookeeper#to-1100).