This is a maintainance release of JACK. Three important issues are
* the old ALSA PCM port names are available, so that applications
that either hardcode or have existing patching information
containing these names will function.
* the use of popen(3) to invoke jackd to determine the server
directory has been fixed so that it works on systems that
have closed a security risk with popen(). This was preventing
correct startup on OS X, in particular.
* USX2Y driver updates to enable JACK MIDI devices to show up
in raw-usb mode (previously, raw-usb mode didn't initialize
or call MIDI drivers properly).
Download from either jackaudio.org or sourceforge: