MYSQLI_REFRESH_REPLICA
    
     This constant has been added as a replacement for
     MYSQLI_REFRESH_SLAVE,
     in line with an upstream change in MySQL.
     The old constant is still available for backwards-compatibility reasons,
     but may be deprecated/removed in the future.
    
The following socket options are now defined if they are supported:
SODIUM_CRYPTO_STREAM_XCHACHA20_NONCEBYTES
   SODIUM_CRYPTO_STREAM_XCHACHA20_KEYBYTES
   SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_BYTES
   SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES
   SODIUM_CRYPTO_CORE_RISTRETTO255_BYTES
   SODIUM_CRYPTO_CORE_RISTRETTO255_HASHBYTES
   SODIUM_CRYPTO_CORE_RISTRETTO255_SCALARBYTES
   SODIUM_CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES
   T_READONLY
   