Driftwatch

Vercel / Vercel REST API /

Breaking

Response field replicas removed

What changed

Reads of this field return undefined, and the failure surfaces wherever that value is used rather than at the call.

Affects GET /v1/projects/{idOrName}/daemons.

Who is affected

Code that reads GET /v1/projects/{idOrName}/daemons (daemons[].config.replicas).

Before and after

WhereBeforeAfter
GET /v1/projects/{idOrName}/daemons · daemons[].config.replicaspresentabsent
GET /v1/projects/{idOrName}/daemons · daemons[].replicaspresentabsent

Code that breaks

// response.daemons[0].config.replicas is now undefined
const replicas = response.daemons[0].config.replicas;

Based on Vercel’s published API specification. How severity is decided.