Summary

Backward compatibility adapter for smooth migration from Wheels 3.x to 4.0.

Details

• wheels-legacy-adapter module preserves 3.x API compatibility
• Progressive migration path:
  • Stage 1: Install adapter — existing code works unchanged
  • Stage 2: Migrate critical paths to 4.0 APIs
  • Stage 3: Remove adapter when migration complete
• Dual-mode operation during transition period
• Part of Wheels 4.0 epic (Plugin system → Service Provider model (Wheels 4.0) #1917)

Source

design_docs/architecture/wheels-4-architecture-guide.md