Pulumi ESC is a secrets and configuration management tool that enhances software engineering capabilities for managing complexity across cloud applications and infrastructure. Since its launch, it has seen significant adoption and now includes major updates such as environment versioning, SDKs for Python, TypeScript/JavaScript, and Go, and support for managing environments via Infrastructure as Code (IaC) with Pulumi, which allows for version control and lifecycle management through code. These updates enable teams to audit changes, roll back environments, and embed secrets management within applications, while also offering a composable approach to configuration management. Pulumi ESC facilitates the aggregation and management of secrets from multiple sources and integrates seamlessly with existing services, providing a comprehensive solution for developers to apply best practices in secrets and configuration management at scale.