Scala is a general purpose programming language designed to express common programming patterns in a concise, elegant, and type-safe way. It smoothly integrates features of object-oriented and functional languages. It is also fully interoperable with Java.

Changes in Version 2.7.2 (10-Nov-2008)

Generic Signatures

The Scala compiler now generates Java's generic signatures, so that Scala generics are visible to Java.

Java/Scala Combined Projects

The compiler can now parse (but not translate) Java source files. This makes it possible to have mixed Java/Scala projects with recursive dependencies between them. In such a project, you can submit first all the Java and Scala sources to the Scala compiler. In a second step, the Java sources are compiled using the Scala generated .class files and the Scala sources are compiled again using the Java generated .class files.

ScalaSwing

Another major addition is the first beta version of the ScalaSwing library, which is now bundled with the distribution.

Scala Collections

There are new implementations of collection classes, contributed by David MacIver: IntMap, LongMap, and TreeHashMap (immutable), ArrayStack and OpenHashMap (mutable).