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.NET 4.6.2 → .NET 8 + React Modernization

Tech: .NET 8, React, Identity, SQL Server, Azure

Context: Large hybrid WebForms/MVC system with rising CPU and long page loads.

Approach: Incremental strangler pattern, domains first, shared auth, performance profiling, caching, and React UI rollout.

Results: ~35% CPU reduction; 40% faster page loads; improved developer velocity and maintainability.