When should I update my app.json file to use the new dyno and data plans?

Eco Dynos

If you want to switch from using free to Eco dynos, it's recommended to update your app.json file prior to November 28th, 2022. Ensure that you are subscribed to Eco prior to updating your files. To help ease the migration to Eco, billing for Eco dynos doesn't start until December 1st, 2022.

Basic Dynos

Basic dynos aren't yet available. If you use Hobby dynos in your app.json files, don't update them to Basic until after November 28th, 2022. Even if you don't update your file after this date, any app.json files that use hobby dynos will provision basic dynos instead for the foreseeable future. As this plan is just a name change, billing commences immediately.

Mini Data Plans

If you want to switch from using hobby-dev to mini data plans, it's recommended to update your app.json file prior to November 28th, 2022. To help ease the migration from hobby-dev to the new plan, billing for Mini plans doesn't start until December 1st, 2022.

Basic Postgres Plans

If you want to switch from using hobby-basic to basic Heroku Postgres plans, it's recommended to update your app.json file prior to November 28th, 2022. As this plan is just a name change, billing commences immediately.


See our blog post and the Low-Cost Plans FAQ for more info related to our new plans.

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