Include burstable compute in product updates

Author: jonels-msft

articles/cosmos-db/postgresql/product-updates.md

@@ -7,7 +7,7 @@ ms.custom: mvc
 ms.service: cosmos-db
 ms.subservice: postgresql
 ms.topic: conceptual
-ms.date: 01/11/2023
+ms.date: 01/23/2023
 ---
 
 # Product updates for Azure Cosmos DB for PostgreSQL
@@ -22,6 +22,11 @@ Updates that don’t directly affect the internals of a cluster are rolled out g
 
 Updates that change cluster internals, such as installing a [new minor PostgreSQL version](https://www.postgresql.org/developer/roadmap/), are delivered to existing clusters as part of the next [scheduled maintenance](concepts-maintenance.md) event. Such updates are available immediately to newly created clusters.
 
+### January 2023
+
+* General availability: 1- and 2-vCore [burstable compute](concepts-burstable-compute.md) options for single-node clusters (for dev/test and smaller workloads).
+	* Available in all supported regions. See compute and storage details [here](resources-compute.md#single-node-cluster).
+
 ### December 2022
 
 * General availability: Azure Cosmos DB for PostgreSQL is now available in the Sweden Central and Switzerland West regions.