debian/changelog

+xfce4-cpufreq-plugin (1.2.1-2) UNRELEASED; urgency=medium
+
+  * Trim trailing whitespace.
+  * Bump debhelper from old 10 to 12.
+  * Set debhelper-compat version in Build-Depends.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Thu, 26 Dec 2019 13:02:17 +0000
+
 xfce4-cpufreq-plugin (1.2.1-1) unstable; urgency=medium
 
   * New upstream version 1.2.1

debian/compat

-10

debian/control

@@ -3,7 +3,7 @@ Section: xfce
 Priority: optional
 Maintainer: Debian Xfce Maintainers <debian-xfce@lists.debian.org>
 Uploaders: Yves-Alexis Perez <corsac@debian.org>
-Build-Depends: debhelper (>= 10),
+Build-Depends: debhelper-compat (= 12),
                intltool,
                libcpufreq-dev,
                libgtk-3-dev,