Here are some great resources for those interested in learning more about FileMaker 15.
What’s new in the FileMaker 15 Platform delves into detail on the new features of FileMaker 15. Another great resource is the New Features topic in the new and improved web-based FileMaker Pro help.
And lastly, the FileMaker 15 Developer GrabBag file contains technical references, special considerations and examples of some of the great new features available in FileMaker 15.