Azure Auth - Microsoft Entra ID for React + Cloudflare Workers

Package Versions: @azure/msal-react@5.0.2, @azure/msal-browser@5.0.2, jose@6.1.3 Breaking Changes: MSAL v4→v5 migration (January 2026), Azure AD B2C sunset (May 2025 - new signups blocked, existing until 2030), ADAL retirement (Sept 2025 - complete) Last Updated: 2026-01-21

Architecture Overview