Changed functions
 
  PHP Core
  
   - 
    
     crypt() will now raise an
     E_NOTICEerror if thesaltparameter is omitted.
- 
    
     substr_compare() will now accept 0
     for its lengthparameter.
- 
    
     unserialize() will now fail if passed serialised data
     that has been manipulated to attempt to instantiate an object without
     calling its constructor.
    
   
 
 
  
  
   - 
    
     Uploads using the @file syntax are now only supported
     if the CURLOPT_SAFE_UPLOADoption is set toFALSE. CURLFile should be used instead.
 
 
  
  
   - 
    
     The sourceparameter of
     mcrypt_create_iv() now defaults toMCRYPT_DEV_URANDOMinstead ofMCRYPT_DEV_RANDOM.
 
 
  
  
   - 
    
     stream_socket_enable_crypto() now allows the
     crypto_typeparameter to be optional if the
     stream's SSL context includes the newcrypto_typeoption.