diff -r 2354c9058fb6 -r 5bc2dfd26dd8 DEPRECATED.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPRECATED.txt	Fri Sep 25 02:04:25 2020 +0200
@@ -0,0 +1,3 @@
+This module (relpipe-tr-guile.cpp) is deprecated and no longer used since v0.17.
+It was fully replaced by the relpipe-tr-scheme.cpp module (a renamed fork of this module).
+This mercurial repository remains available just to make it possible to build v0.16 and older versions of Relational pipes.