# [Additive] OpenAI: Value restriction lifted

> Source: <https://driftwatch.et/changes/openai-2026-11-13-bcde313e>
> Published: 2026-11-13 02:53:19+00:00

## What changed

A relaxation, not a break. Everything you could send before still works, and more is accepted now.

Affects `VectorStoreExpirationAfter` reachable from 4 operations.

the documented value list is gone; more is accepted now

## Who is affected

Code that sends OpenAI's VectorStoreExpirationAfter objects, used by 4 OpenAI operations.

## Before and after

| Where | Before | After | 
|---|---|---|
| VectorStoreExpirationAfter.anchor | "last_active_at" | absent | 

Based on OpenAI’s published API specification. [How severity is decided](https://driftwatch.et/method).