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**Pesky Changes You Can't Ignore**
-If you are using a System V (aka `systemv`) installation, please note that the default location for PID file has moved -- it is now stored at `/var/run/shairport-sync/shairport-sync.pid`. This change is needed to improve security a little and to improve compatability across platforms. If you're not doing anythoing strange, this should make no difference.
+If you are using a System V (aka `systemv`) installation, please note that the default location for PID file has moved -- it is now stored at `/var/run/shairport-sync/shairport-sync.pid`. This change is needed to improve security a little and to improve compatability across platforms. If you're not doing anything strange, this should make no difference.
**New Features**
+* A volume-changed program hook has been added – a program can now be run whenever the volume control is set or changed. Similar to the `run_this_before_play_begins` and `run_this_after_play_ends` program hooks, you can specify a command line in the `general` `run_this_when_volume_is_set` setting. The AirPlay volume is simply appended to the end of the command line – leave a space if you want it treated as an extra argument. AirPlay volume goes from 0 to -30 and -144 means "mute".
* A FreeBSD installer and startup script is now available. Use the `./configure` option `--with-os=freebsd` to get the right compilation flags, and used the `./configure` option `--with-freebsd-installer` to have a startup script installed and to have a user, group and runtime directory created.
* The standard linux System V and `systemd` installers have been enhanced to create the user and
group `shairport-sync` if necessary.