What changed
No action needed unless you validate responses against a closed schema.
Affects POST /v13/deployments.
Who is affected
Code that reads POST /v13/deployments (functions[key].installCommand).
Before and after
| Where | Before | After |
|---|---|---|
| POST /v13/deployments · functions[key].installCommand | absent | present |
| PATCH /v12/deployments/{id}/cancel · functions[key].installCommand | absent | present |
| GET /v13/deployments/{idOrUrl} · functions[key].installCommand | absent | present |
Based on Vercel’s published API specification. How severity is decided.