Pulumi has introduced the public preview of Update Plans, a feature that ensures the operations previewed with `pulumi preview` will be executed exactly as anticipated during the `pulumi up` operation, providing stronger guarantees for infrastructure changes. This feature addresses concerns about discrepancies between previewed changes and actual updates, especially in critical environments, by saving the preview results to a plan file, which restricts subsequent updates to the actions specified in the plan. Update Plans can also be integrated into CI workflows, allowing for infrastructure changes to be reviewed and validated similarly to code changes through pull or merge request processes. While currently in public preview, Pulumi encourages its use in non-critical scenarios and invites user feedback through GitHub Discussions.