--- a/CHANGES	Fri Sep 22 22:04:38 2017 +0000
+++ b/CHANGES	Fri Sep 22 22:36:13 2017 +0000
@@ -1,5 +1,14 @@
 Changes in the current code since fc-host-tools-r6:
 
+* The way in which loadtools, rvinterf and miscellaneous tools operate on
+  serial ports for the purpose of talking to Calypso GSM devices has been
+  majorly reworked: the serial port handling code has been factored out into
+  libserial, and the new libserial uses Linux-specific direct ioctl calls
+  instead of generic termios.  The effect is that you can now use the GSM-
+  specific high serial baud rates (up to 812500 bps) with FTDI adapters
+  (like the FT2232D adapter commonly used with FCDEV3B) with the standard
+  unpatched ftdi_sio kernel driver.
+
 * Added new utilities tiaud-compile and tiaud-mkvol for generating *.cfg and
   *.vol binary files for the audio mode switching facility of TI's RiViera
   Audio Service, to be uploaded under /aud into FreeCalypso GSM devices.