Cam Soper upgraded the AWS provider from version 6 to 7 in the pulumi/examples repository, modernizing infrastructure code and ensuring compatibility with current AWS APIs. He replaced deprecated S3 BucketV2 constructs with supported alternatives, reducing technical debt and preparing the codebase for future AWS SDK changes. Cam introduced a pr_preview target in the Makefile, enabling automated validation of example changes during pull requests and improving the reliability of the review process. This work leveraged his expertise in AWS, Pulumi, and Makefile scripting, resulting in a more maintainable repository and streamlined development workflows for cloud infrastructure examples.