--- a/CHANGES	Thu Dec 29 09:32:31 2022 +0000
+++ b/CHANGES	Thu Dec 29 09:54:09 2022 +0000
@@ -1,3 +1,23 @@
+Changes from fc-host-tools-r17 to fc-host-tools-r18:
+
+* Changes for the newly resurrected TCH tap feature:
+
+  + fc-shell tch record facility now accepts both the old DL bits format sent
+    by FC Citrine firmware and the new format sent by current FC Tourmaline fw;
+    when the new DL bits format is received, the line-based ASCII output also
+    exhibits a new extended format.
+
+  + New fc-efr2tch utility is the EFR counterpart to unchanged fc-fr2tch.
+
+  + doc/TCH-bit-access article updated for the new environment that includes
+    not only the small-ish changes above, but also new FC Tourmaline firmware
+    and the new GSM codec libraries & utilities package.
+
+* rvinterf log output verbosity change: TCH packets are now elided from the
+  output by default, replaced by a count of how many were sent and received;
+  the new -v option turns on verbose mode in which every such packet is dumped
+  in hex like before.
+
 Changes from fc-host-tools-r16 to fc-host-tools-r17:
 
 * New utilities have been added for working with FreeCalypso PWT melodies,