C++ is still one of the most powerful programming languages with an amazing list of features. However, many new languages and programming paradigms have arisen, so the choice of the best environment for specific applications becomes more difficult. Therefore, the main question of this book is how to apply capabilities of new concepts to C++. The book covers topics like Object Persistence, Reflection, Value Observation, Event Calling, Garbage Collection and even Thread Safety. For applying these abilities the approach of intelligent data containers, called properties, is picked up. Furthermore, in scope of this book, a template-based C++ Container Library, which implements the mentioned concepts, has been developed. Its name Property Set Library (PSL) is based on the used property approach, and its structure and way of implementation is also described in detail. This book is not only for C++ programmers who are interested in details about usable techniques, the freely available library can also be used practically.