Error running remote compact task

What version of the Codex App are you using (From “About Codex” dialog)?

Version 26.409.20454 (1462)

What subscription do you have?

Pro

What platform is your computer?

26.4.1 (25E253)

What issue are you seeing?

Error running remote compact task: { "error": { "message": "Unknown parameter: 'prompt_cache_retention'.", "type": "invalid_request_error", "param": "prompt_cache_retention", "code": "unknown_parameter" } }

It's odd because the last compaction worked not that long ago. Compaction has been working fine on this latest update. Compaction isn't working fine on this latest update. It just randomly seemed to not work for this specific one.

019d78ea-2e48-7242-be4a-f30e0476900a

What steps can reproduce the bug?

Uploaded thread: 019d78ea-2e48-7242-be4a-f30e0476900a

What is the expected behavior?

Continuous Auto Compaction

<img width="833" height="135" alt="Image" src="https://github.com/user-attachments/assets/458624e6-4f34-4cc0-811a-bfedd418abfe" />

Additional information

_No response_