Update NEWS

Author: smalyshev

NEWS

@@ -2,7 +2,7 @@ PHP                                                                        NEWS
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 ** PHP 5.5 is in security-only mode , please do not commit to this branch **
 
-?? ??? 2015, PHP 5.5.31
+07 Jan 2015, PHP 5.5.31
 
 - FPM:
   . Fixed bug #70755 (fpm_log.c memory leak and buffer overflow). (Stas)
@@ -17,6 +17,10 @@ PHP                                                                        NEWS
   . Fixed bug #70741 (Session WDDX Packet Deserialization Type Confusion
     Vulnerability). (taoguangchen at icloud dot com)
 
+- XMLRPC:
+  . Fixed bug #70728 (Type Confusion Vulnerability in PHP_to_XMLRPC_worker()).
+    (Julien)
+
 01 Oct 2015, PHP 5.5.30
 
 - Phar: