What's new merging

Author: yelevin

articles/sentinel/whats-new.md

@@ -19,8 +19,18 @@ See these [important announcements](#announcements) about recent changes to feat
 
 ## February 2023
 
+- [New behavior for alert grouping in analytics rules](#new-behavior-for-alert-grouping-in-analytics-rules) (in [Announcements](#announcements) section below)
+- [Audit and monitor the health of your analytics rules (Preview)](#audit-and-monitor-the-health-of-your-analytics-rules-preview)
 - [Advanced scheduling for analytics rules (Preview)](#advanced-scheduling-for-analytics-rules-preview)
 
+### Audit and monitor the health of your analytics rules (Preview)
+
+Microsoft Sentinel's **health monitoring feature is now available for analytics rules** in addition to automation rules, playbooks, and data connectors. Also now available for the first time, and currently only for analytics rules, is Microsoft Sentinel's **audit feature**. The audit feature collects information about any changes made to Sentinel resources (analytics rules) so that you can discover any unauthorized actions or tampering with the service.
+
+Learn more about [auditing and health monitoring in Microsoft Sentinel](health-audit.md):
+- [Turn on auditing and health monitoring for Microsoft Sentinel (preview)](enable-monitoring.md)
+- [Monitor the health and audit the integrity of your analytics rules](monitor-analytics-rule-integrity.md)
+
 ### Advanced scheduling for analytics rules (Preview)
 
 To give you more flexibility in scheduling your analytics rule execution times and to help you avoid potential conflicts, Microsoft Sentinel now allows you to determine when newly created analytics rules will run for the first time. The default behavior is as it has been: for them to run immediately upon creation.