Heroku Labs: Bypass Daily Dyno Restarts for Fir-Generation Apps
Last updated August 11, 2025
By default, dynos restart daily. Fir-generation apps have the option to disable the daily dyno restart behavior. Dynos will still restart for other reasons such when creating new releases, updating config vars and in case of hardware fault.
Enabling
To enable the flag, run this command:
heroku labs:enable fir-bypass-daily-dyno-restarts -a example-app
Disabling
To disable the flag and revert back to the default daily restart behavior, run:
heroku labs:disable fir-bypass-daily-dyno-restarts -a example-app