Stripe: supported_networks can now return "chaps"

What changed

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

Affects supported_networks[] on funding_instructions_bank_transfer_financial_address reachable from 399 operations.

New value: chaps.

can now return "chaps"

Who is affected

Code that reads Stripe's funding_instructions_bank_transfer_financial_address objects, used by 399 Stripe operations.

Before and after

Where	Before	After
funding_instructions_bank_transfer_financial_address.supported_networks[]	"ach", "bacs", "domestic_wire_us", "fps", "sepa", "spei", "swift", "zengin"	"ach", "bacs", "chaps", "domestic_wire_us", "fps", "sepa", "spei", "swift", "zengin"

Code that breaks

switch (response.supported_networks[0]) {
  // existing branches …
  // no branch for "chaps"
  default:
    throw new Error("unexpected supported_networks");
}

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