Updated search-how-to-upgrade.md

Author: haileytap

articles/search/search-how-to-upgrade.md

@@ -16,13 +16,13 @@ ms.update-cycle: 180-days
 
 An upgrade brings older search services to the capabilities of new services created in the same region. Specifically, it upgrades the computing power of the underlying service. This one-time operation doesn't introduce breaking changes to your application, and you shouldn't need to change any code.
 
-For [eligible services](#upgrade-eligibility), an upgrade increases the [partition storage](#higher-storage-limits) and [vector index size](#higher-vector-limits) on the same tier at no extra cost.
+For [eligible services](#upgrade-eligibility), an upgrade increases the [partition storage](#higher-storage-limits) and [vector index size](#higher-vector-limits) on the same pricing tier at no extra cost.
+
+This article describes how to upgrade your service in the [Azure portal](https://portal.azure.com/). Alternatively, you can use the [Search Management REST APIs](/rest/api/searchmanagement/) to upgrade your service programmatically. For more information, see [Manage your search service using REST](search-manage-rest.md#upgrade-a-service).
 
 > [!TIP]
 > Looking to [change your pricing tier](search-capacity-planning.md#change-your-pricing-tier)? You can switch between Basic and Standard (S1, S2, and S3) tiers.
 
-This article describes how to upgrade your service in the [Azure portal](https://portal.azure.com/). Alternatively, you can use the [Search Management REST APIs](/rest/api/searchmanagement/) to upgrade your service programmatically. For more information, see [Manage your search service using REST](search-manage-rest.md#upgrade-a-service).
-
 ## About service upgrades
 
 In April 2024, Azure AI Search increased the [storage capacity](search-limits-quotas-capacity.md#service-limits) of newly created search services. Services created before April 2024 saw no capacity changes, so if you wanted larger and faster partitions, you had to create a new service. However, some older services can now be upgraded to benefit from the higher-capacity partitions.