There would be issues, but the BSDs tend to break the ABIs on the development branches only, not the stable branches (e.g. CURRENT vs STABLE in FreeBSD). This u

There would be issues, but the BSDs tend to break the ABIs on the development branches only, not the stable branches (e.g. CURRENT vs STABLE in FreeBSD). This usually gives port maintainers enough time to patch their ports appropriately or to send their patches upstream. Users should never see any breakage unless they choose to use the development branches.