libp2p-pubsub-common is used at run time in 3 crates.

Depender (with downloads and own rev deps) libp2p-pubsub-common version
2 libp2p-pubsub-core ^0.1.0
1 libp2p-pubsub-floodsub ^0.1.0
libp2p-pubsub ^0.1.0