Release FAQ
Several settings affect whether Release creates environments or builds for a particular pull request, all of which you can find in the Account Settings page.
Click your user icon in the top right, then Manage Organization. Click Settings next to the account you would like to manage.
If the "Create ephemeral environments on Pull Requests" and "Create Environments by applying labels to Github PR's" settings are both "Off", Release will not create environments automatically on pull request.
If the "Create ephemeral environments on Pull Requests" setting is "Off" and the "Create Environments by applying labels to Github PR's" setting is "On", Release will only create an environment if the label is applied to your pull request. If there is no custom label set, Release will not automatically create an environment.
If the "Create ephemeral environments for users who don't have Release accounts" setting is "Off", Release will not create an environment if the pull request is made by a user who does not have a Release account, regardless of the other settings.