Public Preview: Migrate virtual machine backups using standard backup policy to enhanced backup policy

Azure Backup now supports migrating virtual backups using standard backup policy to enhanced backup policy. Migration to enhanced policy enables you to improve the restore point objective or RPO (up to 4 hours), retain restore points in snapshot tier for up to 30 days and leverage multi-disk crash consistency for your currently protected VMs. Snapshot tier restore points created using enhanced policy are zonally resilient. You can also now convert your Azure Backup protected virtual machines to Trusted Launch security and utilize premium SSDv2 or ultra-disks without disrupting existing backups by migrating to enhanced policy. For more details, refer to the [documentation](https://aka.ms/std-enhanced-migrate-docs). * Azure Backup * Features * [ Azure Backup](https://azure.microsoft.com/en-gb/services/backup/)