Date Added: Jan 2011
The use of programming languages such as Java and C in Open Source Software (OSS) has been well studied. However, many other popular languages such as XSL or XML have received minor attention. In this paper, the authors discuss some trends in OSS development that they observed when considering multiple programming language evolution of OSS. Based on the revision data of 22 OSS projects, they tracked the evolution of language usage and other artefacts such as documentation files, binaries and graphics files.