What changed
No action needed unless you validate responses against a closed schema.
Affects GET /v2/deployments/{deploymentId}/check-runs.
Who is affected
Code that reads GET /v2/deployments/{deploymentId}/check-runs (runs[].startedAt).
Before and after
| Where | Before | After |
|---|---|---|
| GET /v2/deployments/{deploymentId}/check-runs · runs[].startedAt | absent | present |
| GET /v2/projects/{projectIdOrName}/checks/{checkId}/runs · runs[].startedAt | absent | present |
Based on Vercel’s published API specification. How severity is decided.