diff --git a/tidb-cloud/branch-overview.md b/tidb-cloud/branch-overview.md
index 575f4a50c6521..61cf97f2e76f7 100644
--- a/tidb-cloud/branch-overview.md
+++ b/tidb-cloud/branch-overview.md
@@ -33,7 +33,9 @@ Branches are easy and quick to create and provide isolated data environments. It
 
 TiDB Serverless Branch is in Beta version. Currently, it is free of charge. 
 
-For each organization in TiDB Cloud, you can create a maximum of five TiDB Serverless branches by default across all the clusters. Branches will be created at the same region as cluster, and you can not create branches under a throttled cluster.
+You can only create branches under clusters that are created after July 4, 2023.
+
+For each organization in TiDB Cloud, you can create a maximum of five TiDB Serverless branches by default across all the clusters. Branches will be created in the same region as the parent cluster, and you can not create branches under a throttled cluster.
 
 For each branch, 5 GiB storage is allowed. Once the storage is reached, the read and write operations on this branch will be throttled until you reduce the storage.