wp-includes/sodium_compat/lib/php72compat.php:728$keystring|nulloptionalnull$lengthintoptional32string function sodium_crypto_generichash_init( #[\SensitiveParameter] $key = null, $length = 32 ) { return ParagonIE_Sodium_Compat::crypto_generichash_init($key, $length); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/sodium_compat/lib/php72compat.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.