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

@@ -722,6 +722,13 @@ out, that the corresponding SDK isn't available anymore.
   Mhash is not an extension anymore, use function_exists("mhash") to check whether
   it is avaliable.
 
+- PDO_Firebird
+  As of PHP 7.0.17, the fetched data for integer fields is aware of the Firebird
+  datatypes. Previously all integers was fetched as strings, starting with the
+  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.
+
 - GD
   The bundled libgd requires libwebp instead of libvpx for the WebP functionality.