From there https://github.com/jackaudio/jackaudio.github.com/releases/tag/v1.9.14

• It could be interesting to precisely know which file is installed where? Could it be done? Is there an un-installer included in this new package as it was the case in the previous one?

• I saw in a recent commit that Mach Semaphore where activated again instead of Posix Semaphore. Historically Mac Semaphore were used first and Posix Semaphore had to be used after an OSX version change in 2015 (see https://github.com/jackaudio/jack2/commits/develop/macosx/JackPlatformPlug_os.h) The commit message "Framework moved in /Library again, using posing semaphores. " is a bit enigmatic... and I don't remember the exact detail of the the need to move to Posix semaphore, but there was a real technical reason at that time.
  Is the move back from Posix to Mach Semaphore possible because of the fact the JackRouter component is not working anymore? Thanks for any explanation.