wp-includes/sodium_compat/lib/php72compat.php:1569$string1string$string2stringint function sodium_memcmp( #[\SensitiveParameter] $string1, #[\SensitiveParameter] $string2 ) { return ParagonIE_Sodium_Compat::memcmp($string1, $string2); }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.