updating whats new

Author: khdownie

articles/storage/files/files-whats-new.md

@@ -4,7 +4,7 @@ description: Learn about new features and enhancements in Azure Files and Azure
 author: khdownie
 ms.service: storage
 ms.topic: conceptual
-ms.date: 04/19/2023
+ms.date: 05/24/2023
 ms.author: kendownie
 ms.subservice: files
 ---
@@ -15,6 +15,18 @@ Azure Files is updated regularly to offer new features and enhancements. This ar
 ## What's new in 2023
 
 ### 2023 quarter 2 (April, May, June)
+#### Geo-redundant storage for large file shares is in public preview
+
+Azure Files geo-redundancy for large file shares preview significantly improves capacity and performance for standard SMB file shares when using geo-redundant storage (GRS) and geo-zone redundant storage (GZRS) options. The preview is only available for standard SMB Azure file shares. For more information, see [Azure Files geo-redundancy for large file shares preview](geo-redundant-storage-for-large-file-shares.md).
+
+#### New SLA of 99.99 percent uptime for Azure Files Premium Tier is generally available
+
+Azure Files now offers a 99.99 percent SLA per file share for all Azure Files Premium shares, regardless of protocol (SMB, NFS, and REST) or redundancy type. This means that you can benefit from this SLA immediately, without any configuration changes or extra costs. If the availability drops below the guaranteed 99.99 percent uptime, you’re eligible for service credits.
+
+#### Azure Active Directory support for Azure Files REST API with OAuth authentication is in public preview
+
+This preview enables share-level read and write access to SMB Azure file shares for users, groups, and managed identities when accessing file share data through the REST API. Cloud native and modern applications that use REST APIs can utilize identity-based authentication and authorization to access file shares. For more information, [read the blog post](https://techcommunity.microsoft.com/t5/azure-storage-blog/public-preview-introducing-azure-ad-support-for-azure-files-smb/ba-p/3826733).
+
 #### AD Kerberos authentication for Linux clients (SMB)
 
 Azure Files customers can now use identity-based Kerberos authentication for Linux clients over SMB using either on-premises Active Directory Domain Services (AD DS) or Azure Active Directory Domain Services (Azure AD DS). For more information, see [Enable Active Directory authentication over SMB for Linux clients accessing Azure Files](storage-files-identity-auth-linux-kerberos-enable.md).