BFO-2020 is the official release repository for the Basic Formal Ontology (BFO) 2020, an upper-level ontology for representing entities, continuants, occurrents, processes, and other fundamental categories. The repository contains OWL, Common Logic, and other serializations of the core ontology, plus temporal and atemporal profiles. It is not a software application; it is a knowledge-representation artifact with a software-engineering-style build pipeline. The Makefile drives ROBOT-based reasoning, SPARQL quality checks, and multi-format export, and GitHub Actions runs these checks on every push. This gives the repo a hybrid character: the primary content is formal ontology data, but it is maintained with application-grade CI/CD practices.