Infrastructure as Code (IaC) is essential for modern cloud operations, allowing companies to define their infrastructure through code, facilitating easy deployment, rollbacks, and reproducibility. By using tools like Terraform, teams can manage resources more efficiently, eliminating the risks associated with "snowflake servers" and improving overall agility in infrastructure management.

Pulumi CLI v3.192.0 introduces the `pulumi state taint` and `pulumi state untaint` commands, allowing users to mark resources for replacement without direct access to cloud APIs. This feature enhances infrastructure management by enabling users to prepare for resource replacement in CI/CD pipelines, facilitating smoother deployments. Users can preview changes and apply replacements later, streamlining the workflow.