Blue-green deployments are an effective strategy to mitigate risks associated with rolling out new software versions by allowing incremental exposure of users to new deployments and enabling quick reversion if necessary. Vercel offers solutions to challenges faced in implementing blue-green deployments, such as architectural gaps and infrastructure overhead, through its platform primitives like Skew Protection, Edge Config, and Middleware. Leveraging serverless for scalable deployments on Vercel's platform reduces overhead, increases scalability, and makes sophisticated deployment strategies cost-effective. Additionally, innovative rollout strategies such as multicolor deployments and shadow rollouts are supported by the platform.