October 2025 (Month: 2025-10) – Focused on governance-compliant maintenance and stability for the ipv-cri-address-front service. No new features delivered this month; major effort centered on reverting a tagging change to ensure correct policy tagging behavior across environments. Outcome: reduced risk of incorrect tagging in production/integration and improved traceability of policy-tag decisions.

September 2025 monthly summary for govuk-one-login/ipv-cri-check-hmrc-api: Implemented dynamic Dynatrace OneAgent ARN resolution via AWS Secrets Manager, decoupling the ARN from infrastructure templates to improve observability setup, flexibility, and security. This work included reverting a prior modification to restore a robust dynamic resolution path. The change is tracked under commit 0f26d2bf08f056d7ddd84a249d70fbf4d4179d48, reflecting a deliberate shift to secret-driven configuration for Dynatrace integration.

May 2025 highlights include delivering and evolving CRI key management features across two repositories: a public JWKS endpoint for CRI keys (ipv-cri-address-api) with API Gateway, S3 backing, and CloudWatch alarms; and an encryption key strategy (ipv-cri-common-lambdas) featuring a key rotation flag and JWKS-first retrieval with caching and audience utilities. Both features were implemented with reversible changes (reverts/reintroductions) to ensure safe deployments and governance. The work improves interoperability, security posture, and deployment flexibility, enabling faster key rotation and safer public key exposure for CRI.

February 2025: Reverted the previous postcode regex change in govuk-one-login/ipv-cri-address-api to restore stable and accurate postcode path matching in integration and production. This regression fix addresses the OJ-3033 change and stabilizes the postcode lookup flow, improving reliability across environments and reducing environment-specific discrepancies.