First stable version of FrankenPHP worker runner released. The runner allows using FrankenPHP in worker mode. In this mode application is initializer once per worker and is serving multiple reqests in this state resulting in signficiant performance gains.

Since the application does not "die" on each request, you should clean up state carefully. Yii3 has means for that via DI container state resetters.

Turning default application templates into worker-mode enabled ones is described well in the README.