Umesh Kolhe focused on improving AWS policy hygiene within the sassoftware/viya4-iac-aws repository by addressing policy drift and enhancing audit readiness. He identified and removed obsolete ElasticLoadBalancing policies from the AWS policy files, streamlining policy reviews and reducing unnecessary noise in the infrastructure codebase. Using HCL and leveraging his expertise in AWS and Infrastructure as Code, Umesh ensured that only relevant policies remained, which improved governance and traceability. His targeted cleanup, linked to a specific change for accountability, demonstrated a methodical approach to maintaining secure and manageable IAM policies, though his contributions were limited to bug fixes during this period.