value can now return "COMPLETED"

What changed

Producer-side tools call this additive. It breaks exhaustive switches, strict parsers and generated client enums.

Affects this value on SubscriptionStatus reachable from 10 operations.

New value: COMPLETED.

can now return "COMPLETED"

Who is affected

Code that reads Square's SubscriptionStatus objects, used by 10 Square operations.

Before and after

Code that breaks

switch (response) {
  // existing branches …
  // no branch for "COMPLETED"
  default:
    throw new Error("unexpected value");
}

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