wp-includes/sodium_compat/lib/php72compat.php:1272$messagestring$secret_keystringstring function sodium_crypto_sign( $message, #[\SensitiveParameter] $secret_key ) { return ParagonIE_Sodium_Compat::crypto_sign($message, $secret_key); }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.