When I bought my 2009 Ford Fusion it was marketed as having "Microsoft Sync", the Sync name has stuck around but I haven't seen any mention of Sync being or der

When I bought my 2009 Ford Fusion it was marketed as having "Microsoft Sync", the Sync name has stuck around but I haven't seen any mention of Sync being or derived from Microsoft technology in Ford's marketing in the last couple year (nor in the article). I wonder if that is still the back end of it or if Ford rebuilt Sync from the ground up?