diff --git a/docs-en/12-taos-sql/07-function.md b/docs-en/12-taos-sql/07-function.md
index de70d62286ff1c4fec03fa66462288d98497a2bb..825aeea354fb684e47ceed7afb2bc66d97b23c09 100644
--- a/docs-en/12-taos-sql/07-function.md
+++ b/docs-en/12-taos-sql/07-function.md
@@ -1839,6 +1839,8 @@ SELECT TIMEDIFF(ts_val1 | datetime_string1 | ts_col1, ts_val2 | datetime_string2
   1u(microsecond),1a(millisecond),1s(second),1m(minute),1h(hour),1d(day).
 - The precision of the returned timestamp is same as the precision set for the current data base in use
 
+**Applicable versions**:Since version 2.6.0.0
+
 **Examples**:
 
 ```sql