diff --git a/dm/dm-compatibility-catalog.md b/dm/dm-compatibility-catalog.md
index 7e12b140a15d5..4ee9c1c6783be 100644
--- a/dm/dm-compatibility-catalog.md
+++ b/dm/dm-compatibility-catalog.md
@@ -20,6 +20,7 @@ DM supports migrating data from different sources to TiDB clusters. Based on the
 | MySQL 5.6 | GA | |
 | MySQL 5.7 | GA | |
 | MySQL 8.0 | GA | Does not support binlog transaction compression [Transaction_payload_event](https://dev.mysql.com/doc/refman/8.0/en/binary-log-transaction-compression.html). |
+| MySQL 8.4 | Not tested | Support is planned for a future release. |
 | MariaDB < 10.1.2 | Incompatible | Incompatible with binlog of the time type. |
 | MariaDB 10.1.2 ~ 10.5.10 | Experimental | |
 | MariaDB > 10.5.10 | Not tested | Expected to work in most cases after bypassing the [precheck](/dm/dm-precheck.md). See [MariaDB notes](#mariadb-notes). |