diff --git a/br/br-snapshot-manual.md b/br/br-snapshot-manual.md
index 35698b1326c77..527956554e935 100644
--- a/br/br-snapshot-manual.md
+++ b/br/br-snapshot-manual.md
@@ -48,7 +48,8 @@ In the preceding command:
 
 > **Note:**
 >
-> The BR tool already supports self-adapting to GC. It automatically registers `backupTS` (the latest PD timestamp by default) to PD's `safePoint` to ensure that TiDB's GC Safe Point does not move forward during the backup, thus avoiding manually setting GC configurations.
+> - Staring from v8.5.0, the BR tool disables the table-level checksum calculation during full backups by default (`--checksum=false`) to improve backup performance.
+> - The BR tool already supports self-adapting to GC. It automatically registers `backupTS` (the latest PD timestamp by default) to PD's `safePoint` to ensure that TiDB's GC Safe Point does not move forward during the backup, thus avoiding manually setting GC configurations.
 
 During backup, a progress bar is displayed in the terminal, as shown below. When the progress bar advances to 100%, the backup is complete.