SemVerBench benchmark measures LLM handling of version-constraint semantics
A new arXiv paper introduces SemVerBench, a benchmark that tests how well large language model coding agents interpret version constraints such as caret and tilde ranges. The authors report that confusing caret with tilde semantics (for example, treating ^1.2.3 as >=1.3.0) trips up nearly every model on Cargo, while standard PEP 440 prefix matching is handled more consistently. The work suggests dependency resolution remains a weak spot for agents that automate package management.