> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/release-notes/ja/bakkuendo/readme-3/may-27.md).

# 5月27日

| 環境        | 日付         |
| --------- | ---------- |
| プレプロダクション | 2026年5月19日 |
| 本番環境      | 2026年5月27日 |

### 加盟店トークン化

#### 改善点

* Sandbox環境のAmex暗号文のデフォルト値を更新します。


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