Driftwatch

Plaid / Plaid API (2020-09-14) /

Breakingdirection flip: their tools call this safe

value can now return "MORE_INFORMATION_NEEDED"

What changed

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

Affects this value on PartnerEndCustomerStatus reachable from 6 operations.

New value: MORE_INFORMATION_NEEDED.

can now return "MORE_INFORMATION_NEEDED"

Who is affected

Code that reads Plaid's PartnerEndCustomerStatus objects, used by 6 Plaid operations.

Before and after

WhereBeforeAfter
PartnerEndCustomerStatus"ACTIVE", "DENIED", "PENDING_ENABLEMENT", "UNDER_REVIEW""ACTIVE", "DENIED", "MORE_INFORMATION_NEEDED", "PENDING_ENABLEMENT", "UNDER_REVIEW"

Code that breaks

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

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