update NEWS and UPGRADING

Author: weltling

NEWS

@@ -5,6 +5,9 @@ PHP                                                                        NEWS
 - OpenSSL:
   . Fixed bug #71519 (add serial hex to return value array). (xrobau)
 
+- PDO_Firebird:
+  . Implemented FR #72583 (All data are fetched as strings). (Dorin Marcoci)
+
 - Phar:
   . Fixed bug #70417 (PharData::compress() doesn't close temp file). (cmb)
 

UPGRADING

@@ -339,6 +339,13 @@ PHP 7.1 UPGRADE NOTES
   . Attempting to read an invalid or write to a readonly property will throw
     an instance of Error instead of resulting in a fatal error.
 
+- PDO_Firebird
+  As of PHP 7.1.3, the fetched data for integer fields is aware of the Firebird
+  datatypes. Previously all integers was fetched as strings, starting with
+  aforementioned PHP version intger fields are translated to the PHP integer
+  datatype. The 64-bit integers are still fetched as strings in 32-bit PHP
+  builds.
+
 - Reflection:
   . Failure to retrieve a reflection object or retrieve an object property
     will now throw an instance of Error instead of resulting in a fatal error.