Invited Paper -- A Graphical Model for Context-Free Grammar Parsing -- Compiler Engineering and Compiling Techniques A Refactoring Library for Scala Compiler Extensions -- Feature-Specific Profiling -- A Synchronous-Based Code Generator for Explicit Hybrid Systems Languages -- Faster, Practical GLL Parsing -- Analysis and Optimisation -- A Backend Extension Mechanism for PQL/Java with Free Run-Time Optimisation -- Staged Points-to Analysis for Large Code Bases -- Exact and Approximated Data-Reuse Optimizations for Tiling with Parametric Sizes -- Optgen: A Generator for Local Optimizations -- Formal Techniques -- Towards a Scalable Framework for Context-Free Language Reachability -- Protocols by Default: Safe MPI Code Generation Based on Session Types -- Verifying Fast and Sparse SSA-Based Optimizations in Coq.