After deploying a new application on Google App Engine for production traffic, you've identified issues in the application code and developed a fix. However, some scenarios in the fix can only be validated by end-users with access to specific production data. The Change Approval Board has concerns about the potential risk of the application going down due to the fix but agrees it's necessary. You're tasked with proposing a solution that minimizes both the impact of a potential failure and costs. What should you do?