Short answer: none. In Prefect 3.x,

@task

does not have a default “retry on specific HTTP status codes.” If you set

retries>0

and don’t provide a

retry_condition_fn

, the task will retry on any exception (or Failed state), regardless of HTTP status. If you want to retry only for certain HTTP codes, supply a

retry_condition_fn

that inspects the exception (e.g.,

httpx.HTTPStatusError

) and returns True/False accordingly. Docs: - Retries guide - Task API reference