Update ReleaseNotes.md

Solutions/Syslog/ReleaseNotes.md

@@ -1,5 +1,6 @@
 | **Version** | **Date Modified (DD-MM-YYYY)** | **Change History**                                                 |
 |-------------|--------------------------------|--------------------------------------------------------------------|
+| 3.0.4       | 27-06-2024                     |  Updated Connectivity criteria query for **Data Connector**        |
 | 3.0.3       | 10-04-2024                     |  Updated Entity Mappings **Analytic Rule** FailedLogonAttempts_UnknownUser.yaml    |
 | 3.0.2       | 21-02-2024                     |  Addition of new Syslog AMA **Data Connector**                     |
 | 3.0.1       | 01-02-2024                     |  **Hunting Queries** Description updated                           |