diff --git a/UPGRADING.md b/UPGRADING.md
index c5be13c52c..4e437fa770 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -2,5 +2,19 @@
 
 ## [UPGRADING 2.x to 3.0]
 ### SearchAfter of SearchRequest type
-- Changed SearchAfter of SearchRequest type to FieldValue instead of String
-- Consider using `FieldValue.of("")` to make string type values compatible.
+- Changed SearchAfter of SearchRequest type to FieldValue instead of String ([#769](https://github.com/opensearch-project/opensearch-java/pull/769))
+- Consider using `FieldValue.of` to make string type values compatible.
+
+Before:
+```
+.searchAfter("string")
+.searchAfter("string1", "string2")
+.searchAfter(List.of("String"))
+```
+
+After:
+```
+.searchAfter(FieldValue.of("string"))
+.searchAfter(FieldValue.of("string1"), FieldValue.of("string2"))
+.searchAfter(List.of(FieldValue.of("String")))
+```