unknown-version - Plugchoice

Status	Title
`400`	Unknown API version

Where you see it

Your server, on any SDK API endpoint.

What it means

The Plugchoice-Version request header is set, but not to a version the SDK API speaks. detail lists the versions it does.

What to do

Send one of the versions in detail; today that is 2026-10-07.
Or leave the header out to get the newest version. Pinning is better: see Versions.

Example

{
  "type": "https://developer.plugchoice.com/sdk/errors/unknown-version",
  "title": "Unknown API version",
  "status": 400,
  "code": "unknown-version",
  "detail": "Plugchoice-Version must be one of: 2026-10-07."
}