ant-libp2p-yamux is used at run time in 2 crates (of which 1 optionally). It's used only as a dev dependency in 7 crates.

Depender (with downloads and own rev deps) ant-libp2p-yamux version
140 1 ant-libp2p-swarm-test ^0.46.0
140 ant-libp2p optional ^0.46.0
160 2 ant-libp2p-kad dev ^0.46.0
160 3 ant-libp2p-relay dev ^0.46.0
150 2 ant-libp2p-dcutr dev ^0.46.0
150 1 ant-libp2p-websocket-websys dev ^0.46.0
150 2 ant-libp2p-gossipsub dev ^0.46.0
150 1 ant-libp2p-quic dev ^0.46.0
130 ant-libp2p-mdns dev ^0.46.0