This document discusses Entity Framework Core 1, which is a new version of Entity Framework designed for .NET Core. It highlights some key changes and new features in Entity Framework Core 1 compared to the previous EF 6 version. These include a focus on Code First development, removal of the ObjectContext API, and support for additional database providers and platforms like NoSQL, Linux, and Universal Windows Apps. While EF Core 1 brings new capabilities, the document recommends continuing to use EF 6 for most applications for now due to some limitations in the initial EF Core 1 release.