June 2026 performance snapshot across the govuk-one-login suite. Delivered end-to-end Passkey-based authentication improvements, UX optimizations, security hardening, and enhanced developer tooling. Focused on enabling secure, frictionless sign-in via Passkeys, strengthening data integrity, and improving testability in local and CI environments. The month also included browser support hardening and infrastructure updates to ensure reliable, scalable tests and deployments. Key features delivered: - End-to-end Passkey Sign-In enabled in govuk-one-login/authentication-frontend with feature flag control, UI for cannot-sign-in flow, retry handling, translations, and environment-driven behavior. Includes enabling in Build/Staging and refactoring to a common passkey service with translations. - Sign-In UX enhancements and journey visualization improvements, including clearer 1FA/2FA messaging and aligned audit-event names; refactored routes for /sign-in-passkey and /cannot-sign-in-passkey to share a common successful passkey assertion flow. - Security and data integrity enhancements in govuk-one-login/authentication-api, including AUTH_TO_ACCOUNT_DATA_SIGNING_KEY setup in localstack and propagation of principalId and scope into requestContext for downstream validation. - Passkey testing infrastructure and local development support in govuk-one-login/authentication-acceptance-tests, such as virtual authenticator setup, PasskeyLifecycleService enhancements, environment variable wiring, and test scaffolding to cover success, failure, and retry scenarios. - Browser support hardening and Selenium upgrades: removed Firefox support, hardened Chrome as the supported driver, ARM64 compatibility fixes, and ChromeDriver pool improvements to reduce flakiness and improve test reliability. Major bugs fixed: - Fixed input.value typos in form submissions to ensure correct data is transmitted during sign-in flows. Overall impact and accomplishments: - The month delivered measurable business value by accelerating secure Passkey adoption, reducing login friction, and improving security posture with proper key management and claim propagation. Developer experience improved through better test coverage, environment parity, and faster feedback loops from acceptance tests and CI changes. Technologies/skills demonstrated: - WebAuthn/Passkeys, feature-flagged UX flows, UI/UX improvements, translations, and multi-environment deployment considerations. - AWS KMS/localstack usage for signing key management and claims propagation in serverless auth flows. - Local development tooling and environment variable configuration for passkeys and auth data APIs. - Acceptance testing with virtual authenticators, test lifecycle orchestration, and environment-driven setup. - Selenium/WebDriver hardening, ChromeDriver pool usage, and ARM64 compatibility fixes.

May 2026 highlights: security and MFA readiness improvements across authentication components, plus enhanced testing and tooling. Key features delivered: - Passkey setup for migrated users in acceptance tests to validate MFA flows (commit 5bb1c7b0847ebd1976c8501c8e3b11203f7cc682). - New Gradle task to report dependency versions to aid dependency management (commit 0ed5b483d70b207120e7a0144ebe7527f389318f). - Passkey lifecycle/API surface enhancements and token scope management across authentication-api (multiple commits refining hasActivePasskey handling, response models, and session state). - WebAuthn QA tooling script for manual passkey testing (commit 6fb28d540b13bb37f28a2f13bc9a17389cc9ae2f). - Security and reliability hardening: Netty CVE updates and frontend resilience improvements for null hasActivePasskey handling (backend update commit 4c808298dcb59e86a6816286ddf78bbec6577ca3; frontend commit 7fd80ed8fc5cb248). Major bugs fixed: - Addressed CVEs by constraining Netty io-netty:netty-codec to 4.2.13+ to align with other Netty libraries. - Fixed frontend behavior to avoid displaying passkey journeys when the backend returns null hasActivePasskey, ensuring UI reflects the true state. Overall impact and accomplishments: - Strengthened security posture and MFA reliability, improved API data models and observability for passkeys, and reduced risk through dependency version governance. Enhanced QA tooling and user journey clarity support faster, safer releases. Technologies/skills demonstrated: - Java, Gradle, Netty, WebAuthn, ADAPI tokens, session state management, observability, and QA automation.

Month: 2026-04 — This month delivered two high-impact enhancements to the authentication-api, focusing on secure passkeys management and more reliable account data operations. The work improves security workflows, reduces operational risk, and strengthens testability through targeted automation. Key outcomes include:

March 2026 monthly performance highlights across Gov.uk One Login authentication services: delivered new features, strengthened security, and improved deployment reliability. Key testing coverage was expanded, authentication APIs gained passkeys management capabilities, security model was hardened, and dependencies as well as tooling were upgraded to improve security and reliability. Cross-repo efforts also enhanced deployment automation to ensure API spec changes trigger deployments.

February 2026 monthly summary: Focused on delivering business value through a refreshed user experience, stronger authentication security, standardized API error handling, and infrastructure improvements. Key deliveries include frontend UI updates for password input, comprehensive authentication security enhancements, and DynamoDB client upgrade, resulting in clearer user experiences, stronger security posture, and more stable performance across services.

January 2026 performance snapshot: strengthened security, accelerated passkey-based authentication, modernized UI, and improved developer experience. Delivered end-to-end passkey management (AUT-4956) with schema updates and standardized nomenclature, completed the Finish Passkey Assertion Workflow (AUT-4938) with new handler, infrastructure, and error handling patterns, and improved the Passkey Assertion Service for reliability. Modernized the authentication frontend by adopting a design-system-based password field, aligned branding via phase banner updates, and enabled DWP KBV in all environments, while upgrading dependencies. Also patched a critical Log4j vulnerability in acceptance tests (CVE-2025-68161) to bolster security posture. These efforts collectively reduce risk, improve user experience, and enable faster, more secure authentication flows.

December 2025 - GovUK One Login Authentication API: Key security and user data improvements delivered with measurable business value. Hardened CI/CD to reduce pipeline risk and fixed CVE-2025-67735 via Netty dependency updates. Added Passkey Retrieval API with updated OpenAPI spec to strengthen account data management and user security controls. Result: more secure, reliable deployments and stronger authentication capabilities.

November 2025 performance snapshot for govuk-one-login repos: - Authentication frontend and API delivered security-focused improvements and scaffolding to support passkey-based flows, with an emphasis on deployment flexibility via feature flags and maintainable code structure. - Progress aligned to business value: stronger authentication UX, clearer passkey status signals, and scalable data management for passkeys. Overall, completed features with traceable commits, established API scaffolding, and improved data validation and session-state handling to enable next steps in passkey adoption and deployment variations.

October 2025: Security hardening, frontend state-machine enhancements, and foundational auth infrastructure across govuk-one-login repos. Delivered a hardened security posture, expanded contact form workflows, and infrastructure support for passkeys/WebAuthn, plus feature-flag plumbing and public key endpoints to improve security and maintainability.

September 2025 performance summary: Focused on delivering a robust, localized, and secure authentication experience across frontend and API, while strengthening maintainability and infrastructure clarity. Key architectural improvements include a refactored Journey Map state machine with a generic generator and StateMachineHelper, enhanced contact form journey structure and translations, and a visual upgrade to journey map states. Security posture improved through targeted dependency updates in acceptance tests and core services, and i18n adoption modernized the UI and init logic. Documentation improvements in infrastructure templates and dependency alignment across repos supported faster onboarding and safer releases.

August 2025 performance summary: Delivered high-impact features and critical fixes across authentication frontend and API, with a focus on user experience, security, and maintainability. Key deliverables included wallet data mappings and production enablement for improved reporting; removal of the wallet form feature flag to reduce technical debt; standardized GOV.UK UI rendering through a new macro, TS typings, and demo pages; and visual/system enhancements to the journey map with dark mode and updated Mermaid for performance and security. Critical security updates in the API addressing CVEs through dependency bumps and constrained versioning to improve posture. These changes collectively reduce risk, improve data quality, and accelerate UI consistency across the platform.

July 2025 development monthly summary focusing on business value, features delivered, bugs fixed, and technical achievements across authentication-api, authentication-frontend, and acceptance-tests teams. Key security visibility improvements, rebrand readiness, and maintainability gains drove measurable impact for users and partners.

June 2025 monthly summary for govuk-one-login repositories focusing on delivering user-visible features, stabilizing deployment, and strengthening security and test coverage. Highlights include device intelligence rollout, UI accessibility improvements, code quality enhancements around res.locals, MFA refactor and migration improvements, and robust verification safeguards.

May 2025 monthly summary focusing on key accomplishments and business impact across the authentication streams. Delivered security-focused front-end enhancements, improved end-user MFA experience for a global audience, and strengthened test coverage and maintainability.

April 2025 performance summary for govuk-one-login platform. Delivered critical features and stability improvements across authentication-api and authentication-frontend, driving security, reliability, and faster iteration cycles. Notable outcomes include migrating MFA credentials for SMS and Auth App with enhanced data migration and MFA handling; refactoring and centralizing the NotificationService to improve reliability and observability, including uniqueNotificationReference and pre-notify logging; improving traceability by propagating session IDs through NotifyRequest flows; modernizing the frontend stack to ES Modules and TypeScript, with ESNext-compatible configs, and improved test tooling; and updating compliance content (privacy statement schema and terms version) to align with new requirements. These efforts reduce operational risk, improve developer experience, and support scalable growth.

March 2025 focused on delivering user-centric authentication improvements, hardening security and observability, and strengthening test infrastructure across frontend and API layers. Key work spanned feature enrichments, codebase simplifications, and migrations that reduce maintenance overhead while enhancing reliability and business value.

February 2025: Cross-repo improvements in authentication-frontend and authentication-api focused on data integrity, auditing, and analytics reliability. Frontend changes include renaming cookies.js to dataLayerEvents.js (AUT-3964) and dev analytics domain configuration, branding updates for DynaTrace RUM, and enhanced error handling; backend/API enhancements strengthen data validation in AccountInterventionsService, add contract tests, and centralize RP pairwise ID auditing across MFA reset and signup flows. Added analytics cleanup to reduce legacy debt and improve appliedAt handling (string to number). Impact: more reliable analytics data, safer onboarding/recovery workflows, and reduced maintenance burden through clearer ownership and consistent data handling.

January 2025 performance summary for govuk-one-login repositories: Delivered customer-facing features, migrated analytics stack to GA4, and strengthened developer experience across frontend and API, with data model cleanups and robust test/docs improvements. Highlights include session expiry UX improvements for mobile, MFA flow enhancements, a complete analytics migration, API data model cleanup, and broad frontend/dev-environment refactors. These changes reduce risk, improve data quality, and accelerate future iterations.