+ * Build-Depend on the Python 3 version of the Sphinx packages to fix
+ Lintian Warning: build-depends-on-python-sphinx-only
+ * Fix upstream version parsing in d/rules to account for -rcX.
+ * 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.