z.ai/glm-5.3-flash

# v1 → v2 Migration Guide ## 1. `status` now includes `refunded` *(most likely to break)* If your code uses `switch` statements or enum validation on `status`, unknown values may throw errors. Also, `"refunded"` orders may appear where you expected none — update filters and reports. ## 2. `GET /orders` is now paginated (default 25) Code assuming full result lists will silently see only 25 orders. Read `page` and `total` from the response, and loop or raise `per_page` explicitly. ## 3. `user_id` renamed to `customer_id` *(least likely, but certain)* Any request/response touching this field fails with a validation error until renamed. A simple find-and-replace — but it **will** fail, so fix it before anything else ships. **Recommendation:** test against v2 in staging before the cutoff date.