Curriculum Level Gates — Compatibility Reference

The active discussion is Learning-Unit Progression and Access Policy. Its structural foundation is Learning Units, not a second curriculum-level model.

Recursive completion and stable global recognition are defined. Whether a whole-unit prerequisite expresses regular learning order or also blocks technical access remains undecided, including its interaction with direct assessment attempts. The earlier whole-level gate was a conditional example, not a universal prerequisite or activated course mode.

This page preserves the old link. Use the active progression document for the conditional gated example and its decision boundary, and Graph Definition §11.5 for the formal contract. No new schema or runtime gate is announced.