solana-loader-v4-interface is used at run time in 89 crates (of which 4 optionally). It is a direct run-time dependency in 6 crates. It's used only as a dev dependency in 13 crates.

Depender (with downloads and own rev deps) solana-loader-v4-interface version
353K 619 solana-program ^2.2.1
38K 22 solana-bpf-loader-program =2.2.1
36K 5 solana-loader-v4-program =2.2.1
2.7K 4 litesvm ^2.2
1.8K 3 solana-cli =2.2.1
120 spherenet-program ^2.2.1