diff -r c46f2bf815d2 -r 36f1c7ab9010 cubicweb/pyramid/development.ini.tmpl
--- a/cubicweb/pyramid/development.ini.tmpl	Thu Apr 27 10:16:39 2017 +0200
+++ b/cubicweb/pyramid/development.ini.tmpl	Tue Jun 06 12:20:17 2017 +0200
@@ -23,7 +23,6 @@
 # http://cubicweb.readthedocs.io/en/latest/book/pyramid/settings/
 ##
 cubicweb.instance = %(instance)s
-cubicweb.bwcompat = false
 cubicweb.debug = true
 cubicweb.session.secret = %(session-secret)s
 cubicweb.auth.authtkt.persistent.secure = false