March 2026: Stability and maintainability focus for alphagov/notifications-template-preview. No new features released this month. Primary change: revert SIGABRT diagnostics in Celery worker initialization to restore default startup behavior and reduce log noise. This aligns with Celery best practices and reduces startup-related risk.

February 2026 monthly summary for alphagov/notifications-template-preview: Delivered targeted performance optimization of Celery initialization and comprehensive repository housekeeping to accelerate worker startup, improve development workflow, and strengthen maintainability. The changes address startup overhead by removing unnecessary Flask app context pushes during Celery worker initialization and incorporate Docker config, pre-commit hooks, and project structure improvements.

Month: 2025-12 — Concise performance summary for alphagov/notifications-admin focused on stability and reliability of spreadsheet handling. This month predominantly centered on a regression recovery: restoring robust pyexcel spreadsheet processing after plugin and .xlsm changes, ensuring admin workflows remain reliable for users who manage spreadsheets within the notification templates and data pipelines.

Month 2025-11: Stabilized database routing behavior in alphagov/notifications-api by reverting prior SQLAlchemy connection parameter changes. Restored logic that prioritizes small transactional queries on the primary database over analytic queries on replicas, ensuring correct behavior and improved performance balance.

June 2025: Stabilized the alphagov/notifications-functional-tests suite by addressing a test-grouping issue in the template-folder tests. Delivered a bug fix that reverts the xdist_group decorator on two test functions, restoring correct parallel test execution. Commit 81f50325e722339b4e502659622a51b514f44eed. Impact: more reliable CI, fewer flaky runs, and faster feedback to developers. Technologies/skills demonstrated: Python, pytest, xdist, Git versioning, and CI workflow collaboration.

May 2025 monthly summary: Stabilized and accelerated test feedback for the notifications-functional-tests suite by restoring the test framework and reinforcing reliability through plugin re-enablement and test retries. This work reduced flaky tests and ensured consistent CI validation for notification-related features across environments.

During 2025-01, focused on stabilizing the notifications-api service. The primary effort was restoring Gunicorn keepalive to 90 seconds by reverting the change that had disabled keepalive, addressing issues observed when keepalive was off. This change enhances reliability under load, reduces timeouts, and improves downstream service stability. Implemented in alphagov/notifications-api (commit b01b07f73ab9950cac51d64f27bae3f5abc7f210). No new features were delivered this month; the major value lies in operational resilience and deployment safety.