MetricIds is no longer accepted

What changed

Usually ignored rather than rejected, so the call succeeds and does something subtly different.

Affects MetricIds on billable-usage-api_v2_filter_by reachable from 1 operation. Grep for it: nothing else will tell you.

Who is affected

Code that sends Cloudflare's billable-usage-api_v2_filter_by objects, used by 1 Cloudflare operation.

Before and after

Code that breaks

await client.post("/…", {
  // MetricIds is now ignored, not rejected
  MetricIds: value,
});

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