From December 1, 2024, the V1 signature algorithm of Object Storage Service (OSS) is no longer available to new customers with new UIDs. From June 1, 2025, OSS no longer updates and maintains the V1 signature algorithm, and the V1 signature algorithm is no longer available for new buckets. We recommend that you use another signature algorithm at the earliest opportunity to prevent impact on your business. https://www.alibabacloud.com/help/en/oss/developer-reference/guidelines-for-upgrading-v1-signatures-to-v4-signatures