Merge pull request #216024 from flang-msft/fxl---update-whats-new-page-BUG-16011419

fxl---Update cache-whats-new with georeplication announcment

Author: prmerger-automator[bot]

articles/azure-cache-for-redis/cache-whats-new.md

@@ -6,12 +6,16 @@ author: flang-msft
 ms.author: franlanglois
 ms.service: cache
 ms.topic: conceptual
-ms.date: 09/29/2022
+ms.date: 10/2/2022
 
 ---
 
 # What's New in Azure Cache for Redis
 
+## October 2022
+
+### Failover for passive geo-replication
+
 ## September 2022
 
 ### Upgrade your Azure Cache for Redis instances to use Redis version 6 by June 30, 2023