// your changes do not invalidate the hardcoded layout file in
// LayoutFile.cpp. Additions will never do so, but syntax changes
// could. See LayoutFileList::addEmptyClass() and, especially, the
-// definition of the layoutpost string.
+// definition of the layoutpost string.
+// You should also run (or ask someone who has bash to run) the
+// development/updatelayouts.sh script, to update the format of
+// all of our layout files.
//
int const LAYOUT_FORMAT = 27;