diff -Nru cloud-init-22.4.2/debian/changelog cloud-init-22.4.2/debian/changelog
--- cloud-init-22.4.2/debian/changelog	2022-11-28 16:48:49.000000000 +0000
+++ cloud-init-22.4.2/debian/changelog	2022-12-08 16:45:11.000000000 +0000
@@ -1,3 +1,12 @@
+cloud-init (22.4.2-0ubuntu0~20.04.2) focal; urgency=medium
+
+  * d/compat & d/control: revert bump debhelper-comat to v10. Avoid
+    service restarts across package upgrade (LP: #1999159)
+    - d/compat: replaced with compat level 9
+    - d/control: Build-Depends: revert to debhelper >= 9
+
+ -- Chad Smith <chad.smith@canonical.com>  Thu, 08 Dec 2022 09:45:11 -0700
+
 cloud-init (22.4.2-0ubuntu0~20.04.1) focal; urgency=medium
 
   * Upstream snapshot based on 22.4.2 upstream release. (LP: #1996645)
diff -Nru cloud-init-22.4.2/debian/compat cloud-init-22.4.2/debian/compat
--- cloud-init-22.4.2/debian/compat	1970-01-01 00:00:00.000000000 +0000
+++ cloud-init-22.4.2/debian/compat	2022-12-08 16:45:11.000000000 +0000
@@ -0,0 +1 @@
+9
diff -Nru cloud-init-22.4.2/debian/control cloud-init-22.4.2/debian/control
--- cloud-init-22.4.2/debian/control	2022-11-28 16:48:49.000000000 +0000
+++ cloud-init-22.4.2/debian/control	2022-12-08 16:45:11.000000000 +0000
@@ -3,7 +3,7 @@
 Priority: optional
 Homepage: https://cloud-init.io/
 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
-Build-Depends: debhelper-compat (= 10),
+Build-Depends: debhelper (>= 9.20160709),
                dh-python,
                iproute2,
                pep8,