We have azure storage from the beginning now Microsoft Azure introduce azure Storage Gen2, here we have BLOB+Data Lake Gen2 is combined
But we should remember here for few features of data lake gen one is not working. Earlier we have POSIX-based ACL that is die in gen2. Now we have the option only use RBAC feature for Azure. RBAC we can assign up to BLOB container level. If you are customer ask to implement ACL security, it is not working.