diff -r 002ae96afeab -r 5722d8c461eb debian/changelog
--- a/debian/changelog	Wed Jun 05 15:38:29 2019 +0200
+++ b/debian/changelog	Wed Jun 05 16:29:04 2019 +0200
@@ -1,6 +1,7 @@
 cubicweb (3.27.0~dev0-1) UNRELEASED; urgency=medium
 
   * Switch all Debian packages to Python 3.
+  * Switch to Debian source format 3.0 (quilt).
 
  -- Jérémy Bobbio <jeremy.bobbio@irq7.fr>  Wed, 29 May 2019 16:06:20 +0200