The NFS 4.1 support on Azure File Shares -in public preview- is a fully POSIX-compliant offer ideal for workloads that require POSIX-compliant file shares, case sensitivity, or UNIX style permissions (UID/GID).
The NFS 4.1 support -in preview– on Azure File Shares is available in a number of Azure regions. You may find additional information about NFS 4.1 support on Azure File Shares in these articles “How to create an NFS share” and “Azure file share protocols“.