What's New in fswatch v. 1.20.1:

fswatch v. 1.20.1 introduces the following features and bug fixes:

• Correct the 1.20.0 release notes to document PR 368, Issue 367: the Linux
  inotify monitor now uses an epoll/eventfd wait loop, improving stop
  responsiveness and event queue draining behavior.

libfswatch v. 1.20.1 introduces the following features and bug fixes:

• Correct the 1.20.0 release notes to document PR 368, Issue 367: the Linux
  inotify monitor now uses an epoll/eventfd wait loop, and building it now
  requires epoll, eventfd, and inotify_init1 support.