They do provide a public dashboard for tracking progress to ABI stability: https://swift.org/abi-stability/ https://swift.org/abi-stability/ Whether it turns o

They do provide a public dashboard for tracking progress to ABI stability: https://swift.org/abi-stability/ https://swift.org/abi-stability/ Whether it turns out there are things missing from that list, who knows, but they're definitely getting closer.