Chuks v0.1.0 delivers up to 58x speed gains through unboxed types and inlining

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The Chuks programming language runtime released v0.1.0 in July 2026, shifting focus from correctness to performance after nine releases in the 0.0.x line. Both the bytecode VM and ahead-of-time native compiler received deep optimisation passes, with the VM now maintaining separate unboxed stacks for int, float, and bool to avoid heap allocation in tight numeric loops. The native compiler was updated to emit per-type, non-generic slice-read helpers that can inline across package boundaries, replacing a generic helper that forced costly cross-package function calls. A particularly significant fix targeted misuse of the any type for single-typed values, where unnecessary boxing caused up to a 58x slowdown in benchmarks like nbody. The release also introduced MongoDB and Kafka protocol libraries and a full debug adapter with conditional breakpoints and live expression evaluation.

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ProgrammingDEV Community ·

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