cohort can now return "already_metered", "extreme", "medium_plus", "metered_opt_in"

What changed

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

Affects deploymentStorageRollout.cohort on Team reachable from 3 operations.

New values: already_metered, extreme, medium_plus, metered_opt_in.

can now return "already_metered", "extreme", "medium_plus", "metered_opt_in"

Who is affected

Code that reads Vercel's Team objects, used by 3 Vercel operations.

Before and after

Code that breaks

switch (response.deploymentStorageRollout.cohort) {
  // existing branches …
  // no branch for "already_metered"
  // no branch for "extreme"
  // no branch for "medium_plus"
  // no branch for "metered_opt_in"
  default:
    throw new Error("unexpected cohort");
}

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