What’s Changed
Group templates by name for block themes by @ssang in Ensure WordPress template hierarchy is intact for hybrid themes by ssang · Pull Request #390 · roots/acorn · GitHub
Fix responses always returning 200on WordPress routes by @Log1x in https://github.com/roots/acorn/pull/412
Full Changelog: https://github.com/roots/acorn/compare/v4.3.0...v4.3.1