+ * Switch generated dependencies to Python 3 due to switch to Python 3
+ Sphinx.
+ * Build-Depend on debhelper (>= 9.20160709) | dh-systemd to keep
+ compatibility with Ubuntu 16.04, which does not yet have that
+ of debhelper.
+ * Revert: d/rules: use new dh option names - Ubuntu 16.04 does not
+ have a debhelper that supports the new option, so use the old
+ ones for now.
+ * Correctly parse upstream version when using ~rc instead of -rc.
+ * Bump Standards-Version to 4.1.1, no changes.