Editorial

Programming languages are programmers' most basic tools. With appropriate programming languages one can drastically reduce the cost of building new applications as well as maintaining existing ones. In the last decade programming languages have made a large shift from procedural and structured programming towards new programming paradigms such as logic, functional and object-oriented programming. The main driving force was and will continue being to better express programmer's ideas. Therefore, research in programming languages is an endless activity and the core of computer science. New language features, new programming paradigms, better compile-time and run-time mechanisms can be foreseen in the future. The PL Track aims at providing researchers and practitioners with opportunities to present their ideas and experience in designing new programming concepts and implementing programming languages.