--- a/CHANGES	Mon Feb 11 22:29:58 2019 +0000
+++ b/CHANGES	Mon Feb 11 22:51:17 2019 +0000
@@ -1,5 +1,12 @@
 Changes in the current code since fc-host-tools-r9a:
 
+* For those who need to run our tools on a 64-bit host system (or more
+  precisely, any system on which pointers are longer than the basic int type),
+  the present release includes fixes for null pointer passing constructs
+  throughout the code base.  The original code was only correct for classic
+  systems on which ints and pointers are equivalent for K&R C function argument
+  passing purposes.
+
 * The back end program supporting fcup-* -R mode has been extended to support
   sending strings longer than 254 characters using the extended version of the
   AT-over-RVTMUX mechanism supported by newer firmwares - see the updates in