pfSense

2.1.x and prior versions had an empty /usr/local/etc/rc.d/ directory after a clean install. 2.2 doesn't. This makes some package installs break on systems that have no other packages installed, for instance installing open-vm-tools will die on line 154 "Could not open /usr/local/etc/rc.d/vmware-guestd.sh for writing" because the parent directory of that file doesn't exist.

Given there are likely numerous other similar potential problem areas introduced by this, having an empty /usr/local/etc/rc.d/ directory by default as all previous versions did is likely the best solution. I'm not sure where that ended up getting removed though, didn't see anything relevant in tools that's diff between 2_1 and master.