Framework upgrades, architecture changes, and platform migrations — each with purpose-built detection and AI transforms. Tier 1 covers version upgrades, Tier 2 handles deeper architecture shifts, and Tier 3 tackles cross-platform moves.
Version-to-version upgrades with well-defined breaking changes. AST-detected, AI-transformed.
Deeper structural changes that touch routing, bundling, ORM layers, or module systems.
Cross-platform moves involving data export, content mapping, and full re-platforming.