February 2026 monthly summary for zowe/api-layer focusing on delivering enhancements to the API Mediation Layer (APIML) schema validation. The work introduced new configuration schemas and updated existing ones to ensure proper validation and structure, improving reliability and reducing misconfigurations for API consumers. Key engineering activity was the fix: schema validation in APIML components (#4438), implemented and committed as 6cde33d9574e2bc93e78500589c67191fad21d0b by Elena Kubantseva.

November 2025 monthly summary highlighting key business and technical outcomes across two repositories: zowe/api-layer and zowe/zowe-install-packaging. Key features delivered: - SAF Authentication Provider Integration Tests: Updated integration tests to support the SAF authentication provider, expanding coverage and ensuring compatibility with multiple authentication schemes for the API layer. - API ML Default SAF Authentication: Set SAF as the default authentication provider for API ML, improving security posture and ensuring compatibility with z/OSMF APIs; updates to configuration and tests reflect the new default. Major bugs fixed: - Fixed integration test workflow to run with SAF auth provider, reducing flakiness and increasing reliability of security-related test scenarios. - General alignment of authentication configuration to SAF defaults to avoid misconfigurations during deployments. Overall impact and accomplishments: - Strengthened security posture by default SAF authentication across API ML, delivering a consistent, secure auth experience for users interacting with z/OSMF APIs. - Expanded test coverage and reliability for SAF-related auth flows, accelerating validation of authentication changes and reducing risk in releases. - Improved configuration management and deployment readiness through test and playbook updates, enabling easier adoption of SAF defaults across environments. Technologies/skills demonstrated: - SAF authentication integration, test automation, CI/test infrastructure improvements, configuration management, and release discipline (including changelog updates). Repos: - zowe/api-layer (SAF Integration Tests) - zowe/zowe-install-packaging (Default SAF auth for API ML)

Month 2025-10 – Key features delivered: ICSF Keyring Support and JWT Handling Upgrade in zowe/api-layer, including updates to startup scripts and build configuration; refactor JWT handling to jose4j to improve security and compatibility. Major bugs fixed: None reported this month; focus was on security hardening and reliability improvements. Overall impact: Strengthened security posture with hardware-backed key support, improved JWT processing reliability, and smoother onboarding for ICSF-based deployments, translating to reduced risk and faster time-to-value for customers. Technologies/skills demonstrated: Java, jose4j JWT library, ICSF integration, build and startup script modernization, secure key management, and code refactoring for authentication flow.

In August 2025, delivered a high-impact bug fix to improve API-layer startup resilience for the Caching Service when required ports are unavailable. The change prevents startup failures, reduces downtime, and increases reliability for downstream consumers. This work enhances stability and maintainability of the api-layer under port constraint scenarios.

July 2025: Reliability and startup hygiene improvements for ZAAS in the api-layer. Delivered a targeted fix for OIDC endpoint validation that stabilizes startup when using external identity providers, by refactoring the HTTP client interaction in the OIDC token provider to correctly interpret responses and status codes, enabling startup-time token validation and reducing startup-related outages.