wp-includes/sodium_compat/lib/php72compat.php:856$client_key_pairstring$server_keystringarray{0: function sodium_crypto_kx_client_session_keys( #[\SensitiveParameter] $client_key_pair, $server_key ) { return ParagonIE_Sodium_Compat::crypto_kx_client_session_keys($client_key_pair, $server_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.