Update release notes for PR #86

Author: ponylang-main

.release-notes/graceful-termination.md

@@ -240,3 +240,9 @@ end)
 rs1 == rs2  // true
 ```
 
+## Send Terminate message before closing TCP connection
+
+`Session.close()` now sends a Terminate message to the PostgreSQL server before closing the TCP connection. Previously, the connection was hard-closed without notifying the server, which could leave server-side resources (session state, prepared statements, temp tables) lingering until the server detected the broken connection on its next I/O attempt.
+
+No code changes are needed — `Session.close()` handles this automatically.
+