Scala

This is a major new version of Scala, which includes a vast number of fixes and new features. The collection library was redesigned. Arrays were made more efficient with better Java interoperability. Manifests were added for polymorphic arrays. Type specialization, named and default arguments, and package objects were implemented. The Scala Swing libraries, the REPL, implicits, equality, the XML library, annotations, Sbaz and Scalap, and compiler speed were improved. Actors were enhanced. Packrat parser combinators, continuations, a new build manager, and a new Scaladoc tool were added.