We seek submissions on all topics related to Scala, including (but not limited to):

    Language design and implementation – language extensions, optimization, and performance evaluation.
    Library design and implementation patterns for extending Scala – stand-alone Scala libraries, embedded domain-specific languages, combining language features, generic and meta-programming.
    Formal techniques for Scala-like programs – formalizations of the language, type system, and semantics, formalizing proposed language extensions and variants, dependent object types, type and effect systems.
    Concurrent and distributed programming – libraries, frameworks, language extensions, programming models, performance evaluation, experimental results.
    Big data and machine learning libraries and applications using the Scala programming language.
    Safety and reliability – pluggable type systems, contracts, static analysis and verification, runtime monitoring.
    Interoperability with other languages and runtimes, such as JavaScript, Java 8 (lambdas), Graal and others.
    Tools – development environments, debuggers, refactoring tools, testing frameworks.
    Case studies, experience reports, and pearls