Deployment guardrails in Amazon SageMaker provide a new set of deployment capabilities allowing you to implement advanced deployment strategies that minimize risk when deploying new model versions on SageMaker hosting. Depending on your use case, you can use a variety of deployment strategies to release new model versions. Each of these strategies relies on a mechanism to shift inference traffic to one or more versions of a deployed model. The chosen strategy depends on your business requirements for your machine learning (ML) use case. However, any strategy should include the ability to monitor the performance of new model versions and automatically roll back to a previous version as needed to minimize potential risk of introducing a new model version with errors. Deployment guardrails offer new advanced deployment capabilities and as of this writing supports two new traffic shifting policies, canary and linear, as well as the ability to automatically roll