diff -pruN 2.3-2/debian/changelog 2.3-2build3.1/debian/changelog
--- 2.3-2/debian/changelog	2020-06-14 18:10:07.000000000 +0000
+++ 2.3-2build3.1/debian/changelog	2021-09-11 04:52:43.000000000 +0000
@@ -1,3 +1,27 @@
+haskell-cracknum (2.3-2build3.1) impish; urgency=medium
+
+  * No-change rebuild for libffi soname change.
+
+ -- Matthias Klose <doko@ubuntu.com>  Sat, 11 Sep 2021 06:52:43 +0200
+
+haskell-cracknum (2.3-2build3) hirsute; urgency=medium
+
+  * No-change rebuild for new GHC ABIs
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Fri, 30 Oct 2020 00:31:43 +0000
+
+haskell-cracknum (2.3-2build2) groovy; urgency=medium
+
+  * No-change rebuild against libffi8ubuntu1
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Thu, 27 Aug 2020 00:06:01 +0000
+
+haskell-cracknum (2.3-2build1) groovy; urgency=medium
+
+  * No change rebuild against new ghc ABI.
+
+ -- Dimitri John Ledkov <xnox@ubuntu.com>  Wed, 22 Jul 2020 01:25:04 +0100
+
 haskell-cracknum (2.3-2) unstable; urgency=medium
 
   * Sourceful upload for GHC 8.8.
diff -pruN 2.3-2/debian/control 2.3-2build3.1/debian/control
--- 2.3-2/debian/control	2020-06-14 18:10:00.000000000 +0000
+++ 2.3-2build3.1/debian/control	2020-07-22 00:25:04.000000000 +0000
@@ -1,5 +1,6 @@
 Source: haskell-cracknum
-Maintainer: Debian Haskell Group <pkg-haskell-maintainers@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian Haskell Group <pkg-haskell-maintainers@lists.alioth.debian.org>
 Uploaders: Clint Adams <clint@debian.org>
 Priority: optional
 Section: haskell