value can now return "retro"

What changed

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

Affects this value on Source reachable from 18 operations.

New value: retro.

can now return "retro"

Who is affected

Code that reads Plaid's Source objects, used by 18 Plaid operations.

Before and after

Code that breaks

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

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