Merge pull request #806 from tigergraph/DOC-2726-Added-a-bug-fix-in-release-notes

DOC-2726-Added a bug fix in 3.6.3

Author: Tushar-TG-14

modules/release-notes/pages/index.adoc

@@ -131,6 +131,10 @@ assuming GSE has no deletion. (CORE-3018)
 === Fixed in 3.6.3
 TigerGraph Server 3.6.3 was released on February 9, 2023.
 
+==== GSQL
+
+* Fixed an issue where the `gsql_ts_to_epoch_seconds()` function ingested invalid datetime values.
+
 ==== Security
 
 * Fixed security vulnerabilities in Moment, JQuery UI, Eclipse Jersey, and ApacheHTTPClient.