segments changed type

What changed

Serialization mismatch. Integer-to-string moves are the usual cause and the usual outage.

Affects CreateContactOptions reachable from 1 operation.

string → object

Who is affected

Code that sends Resend's CreateContactOptions objects, used by 1 Resend operation.

Before and after

Code that breaks

// payload.segments[0]
// was: string
// now: object

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