diff -r 2999fca726f3 -r a8ccd2b19faa include/relpipe/protocol/constants.h
--- a/include/relpipe/protocol/constants.h	Fri Nov 22 15:27:30 2019 +0100
+++ b/include/relpipe/protocol/constants.h	Fri Dec 13 14:55:06 2019 +0100
@@ -24,6 +24,8 @@
 
 #include "typedefs.h"
 
+// DEPRECATED: this namespace is being moved to common
+
 namespace relpipe {
 namespace protocol {