Call for papers: 2nd Workshop on Programming Language Evolution

Programming languages tend to evolve in response to user needs, hardware advances, and research developments. Language evolution artefacts may include new compilers and interpreters or new language standards. Evolving programming languages is however challenging at various levels. Firstly, the impact on developers can be negative. For example, if two language versions are incompatible (e.g., Python 2 and 3) developers must choose to either co-evolve their codebase (which may be costly) or reject the new language version (which may have support implications). Secondly, evaluating a proposed language change is difficult; language designers often lack the infrastructure to assess the change. This may lead to older features remaining in future language versions to maintain backward compatibility, increasing the language’s complexity (e.g., FORTRAN 77 to Fortran 90). Thirdly, new language features may interact badly with existing features, leading to unforeseen bugs and ambiguities (e.g., the addition of Java generics). This workshop brings together researchers and developers interested in programming language evolution, to share new ideas and insights, to discuss challenges and solutions, and to advance programming language design.

Topics include (but are not limited to):

  • Programming language and software co-evolution
  • Empirical studies and evidence-driven evolution
  • Language-version integration and interoperation
  • Historical retrospectives and experience reports
  • Tools and IDE support for source-code mining and refactoring/rejuvenation
  • Gradual feature introductions (e.g., optional type systems)

We are accepting two kinds of submission:

  • Full papers (maximum 8 pages, ACM SIGPLAN 2 column, 9pt)
  • Talk abstracts (may include an ‘extended abstract’, up to 1 page of ACM SIGPLAN format).

Important dates:

  • Submission: Thu April 2nd 2015
  • Notification: Fri May 1 2015
  • Workshop: Tue 2nd July 2015, Prague, Czech Republic

The main workshop page can be found here.

Please submit your abstracts/papers via EasyChair. Papers will be subject to full peer review, and talk abstracts will be subject to light peer-review/selection. Accepted submissions will be published in the ACM DL and must adhere to ACM SIGPLAN’s republication policy.

If you have any questions relating to the suitability of a submission please contact the program chairs at

We are proud to be supported by the Software Sustainability Institute

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