update readme.md

Author: wumpz

README.md

@@ -17,6 +17,14 @@ configuration details below.
 JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. 
 The generated hierarchy can be navigated using the Visitor Pattern.
 
+## Extensions Version 0.8.6
+
+* Added first support for Oracle hierarchical queries
+```sql
+SELECT * FROM employees CONNECT BY employee_id = manager_id ORDER BY last_name;
+SELECT * FROM employees START WITH employee_id = 100 CONNECT BY PRIOR employee_id = manager_id ORDER SIBLINGS BY last_name;
+```
+
 ## Extensions Version 0.8.5
 
 * Added support for mysql truncate function