June 2026 monthly summary: Across the Opetushallitus repositories, delivered a substantial platform modernization, reliability improvements, and security/CI/CD enhancements that collectively increase stability, reduce risk, and accelerate future upgrades. 1) Key features delivered - Opetushallitus/ludos: Platform upgrade to Spring Boot 4.x (Spring Framework 7) with Jackson 3, Flyway DB migrations, and build/logging alignment; modularized auto-config adjustments; removal of deprecated components; Gradle dependency locks regenerated; enhanced test-runner options (--only-server/--only-playwright) and documentation parity. - Opetushallitus/valtionavustus: Node 24 compatibility in CI, non-major dependency upgrades (npm/Jackson, React-related libs), security hardening patches (SnakeYAML, Log4j, AWS CDK), Playwright-based OAI-PMH testing harness, XML parsing modernization with fast-xml-parser, port of OAI-PMH HTTP service to the web backend, local Keycloak for development, and updated GitHub Actions for reliability. - Opetushallitus/aoe: Error logging and alert management improvements; OAI-PMH Playwright testing harness and retries/seed data improvements; XML parsing modernization using fast-xml-parser; port of OAI-PMH HTTP service to the web backend; local development authentication via Keycloak. 2) Major bugs fixed - Opetushallitus/ludos: service-user credential quoting in run-server.sh fixed to prevent authentication failures (401) and stabilize CAS service-user auth. 3) Overall impact and accomplishments - Significantly improved platform stability and maintainability across all repos; upgraded core technology stacks, hardened security posture, and strengthened CI/CD reliability; improved local development experience with Keycloak-based auth and better test automation; reduced alert fatigue through targeted logging adjustments and error handling. 4) Technologies/skills demonstrated - Cross-stack engineering: Spring Boot 4.x, Jackson 3, Flyway, Gradle, Spring Security 7, CAS, Playwright; Node 24 and modern frontend tooling; security hardening (SnakeYAML, Log4j, AWS CDK); XML parsing with fast-xml-parser; OAI-PMH backend porting; Keycloak for local dev; IAM policy adjustments for restricted CI deployments.

Concise monthly summary focusing on business value and technical achievements for May 2026 across Opetushallitus/aoe and Opetushallitus/valtionavustus. This period included significant migration work, production readiness improvements, and repository cleanups that reduce cost and risk while enabling more scalable analytics and feature delivery.

April 2026 monthly summary focused on delivering multilingual communication capabilities, stabilizing API integration across environments, and strengthening deployment reliability. Key features delivered include localization-driven email templates and test coverage for the Yhteishanke process; Semantic API rollout with environment routing, UI/testing enhancements, and broader test coverage; Educational Reference API with data scheduling to improve access to subjects and qualifications; plus deployment automation and cleanup to enhance maintainability and reliability. Major bugs fixed include lint fixes across multiple commits, addition of missing environment variables, enhanced error logs to show real causes, and traffic/endpoint routing fixes (including disabling cron in dev, re-routing Semantic APIs, and feature-flag controlled API routing) to reduce incidents and improve developer feedback loops.