Case Study: a leading financial bank achieves a 48-hour Drupal 7 to 11 migration with Evolve Blue

a leading financial bank migrates Drupal 7 to 11 in 48 hours with Evolve Blue

The customer, a leading financial bank, needed to migrate its large, customer-facing website from an outdated Drupal 7 platform to Drupal 11. The challenge was to complete this complex modernization without any loss of content fidelity, URL structure, business functionality, or security controls. Evolve Blue was engaged to perform this AI-assisted legacy modernization under tight constraints.

Evolve Blue implemented a solution using an agentic engineering model, where five specialized AI workstreams operated in parallel under human-led orchestration. This approach compressed the entire migration into just 48 hours. The results were highly measurable: over 1,054 content nodes were migrated, 4,348 URL aliases were preserved, and 1,225 pages underwent continuous QA, resulting in a near-production-ready Drupal 11 site with zero PHP errors.