Create environments in Release with GitHub labels
If you set a GitHub label in Application Settings, it will override any label set in your Account Settings for this app.
Add the name of the GitHub label to the "GitHub Label Name" field in the "GitHub Settings" section of your Release Application Settings. Apply the label to a pull request when you want Release to create a new environment for it.
To remove a label set at application level, delete the label's name from the "GitHub Label Name" field and click "Save".