DXC Technology used Amazon Q Developer to upgrade a large-scale, distributed enterprise platform for a customer, which consisted of more than 80 independently deployed backend microservices and multiple Angular-based micro-frontend applications. The platform’s backend services ran on older .NET versions, and frontend applications used earlier Angular releases, both approaching or past end-of-support, creating operational risk. The customer faced end-of-life risk from versions nearing end-of-support, security exposure from vulnerabilities surfaced by SAST and DAST scans, large-scale complexity from upgrading more than 80 microservices, regression and integration risk impacting API contracts and authentication flows, and cross-team coordination overhead from inconsistent upgrade approaches. A traditional manual upgrade strategy was deemed unsustainable, requiring a standardized, automated approach to accelerate upgrades while preserving stability and business continuity.