Which pillar of the AWS Well-Architected Framework does this design support?

Explanations:

The Security pillar focuses on protecting data, systems, and assets while delivering business value through risk assessments and mitigation strategies, rather than on the ability to update components regularly.

The Performance Efficiency pillar is about using IT and computing resources efficiently, optimizing performance, and adapting to changing requirements, not specifically on the ability to implement updates in small, reversible increments.

The Operational Excellence pillar emphasizes the ability to manage and operate workloads effectively, allowing for regular updates and changes in small increments, which supports ongoing improvement and operational workflows.

The Reliability pillar focuses on ensuring a workload can perform its intended function correctly and consistently, including recovery from failures, rather than specifically on the regular updati