With Team Foundation Server 2015 and Visual Studio Online, Microsoft has made available a brand new cross-platform build technology. This new build technology promises to be simpler to implement and maintain than Microsoft's previous attempts at automating builds. Rather than dealing with complex XML and/or XAML you simply "compose" build definitions by adding the build activities you need for your specific implementation. The build agents are also must easier to scale and keep up to date than previous build agents. You can even build your Android and iOS apps with it!