solana-loader-v4-interface is used at run time in 83 crates (of which 3 optionally). It is a direct run-time dependency in 6 crates. It's used only as a dev dependency in 11 crates.

Depender (with downloads and own rev deps) solana-loader-v4-interface version
345K 602 solana-program ^2.2.1
39K 22 solana-bpf-loader-program =2.2.1
37K 5 solana-loader-v4-program =2.2.1
2.2K 4 litesvm ^2.2
1.6K 3 solana-cli =2.2.1
110 spherenet-program ^2.2.1