v4.2.2
- fixed an issue with Celery and the prefork worker pool (#444)
- fixed an issue when running uwsgi without a master process (#446)
- fixed an issue with gevent/eventlet on Python 3.7 (#451, #454)
- introduced
IntervalTimer
and use it instead ofthreading.Timer
(#452) - added license header check as pre-commit hook (#456)