Update README.md

alex-zaitsev · web-flow · commit 7c31650a7a53 · 2024-12-05T20:32:25.000+03:00
diff --git a/README.md b/README.md
@@ -28,6 +28,7 @@ Altinity Kubernetes Operator for ClickHouse creates, configures and manages Clic
 ## Requirements
 
  * Kubernetes 1.19+
+ * ClickHouse 21.11. For older ClickHouse versions use operator 0.23.7 or earlier.
  
 ## Documentation
 
