As per my understanding and information, there isn't any SQL Server High Availability(HA) feature without Windows Server Failover Clustering mechanism (WSFC) being used. SQL Server Mirroring used to be one such option where HA was possible without WSFC but with Microsoft stating that Mirroring would be removed soon from the product, are there any HA features which do not require WSFC?
One of the updates in vNext was that Microsoft would be releasing an option for Cluster Free Availability groups. But as of now, do we have any Cluster Free HA feature within the product(SQL Server 2012, 2014, 2016)?. LogShipping is more of a DR option, so excluding LogShipping and Mirroring any other feature?