To enhance service security and stability, we plan to upgrade the underlying control services for Tair (Redis® OSS-Compatible) instances in US regions. This upgrade will no longer support outdated instances because of some incompatible updates. If you have affected instances, please complete the major version upgrade before the specified time. To ensure a smooth transition for your business, please pay attention to the following information and recommendations:

• Affected Product: Tair (Redis® OSS-Compatible)
• Affected Regions: US (Silicon Valley), US (Virginia)
• Affected Instance Versions: Redis® 2.8, Redis® 4.0
• Effective Time: January 15, 2026, at 00:00 (GMT+8)

• Recommended Actions and Impact
  • Recommended Actions: To ensure compatibility with your business operations, please complete the major version upgrade to Redis® 5.0 or higher before the effective time. You can use the one-click upgrade feature for the operation. Before upgrading, please thoroughly test your business compatibility to avoid unnecessary impacts.
  • Impact: If you do not take the recommended actions before the effective time, instances that have not been upgraded by the deadline will automatically undergo a major version upgrade during the maintenance window. Please note that any compatibility issues resulting from this automatic upgrade may negatively affect your business operations, and you will bear the related consequences.

• Reference Documents
  • Major Version Upgrade Documentation >
  • Compatibility Information for Each Version >

If you have any questions or require further assistance, please feel free to submit a support ticket to contact us.

We sincerely apologize for any inconvenience this may cause and appreciate your understanding and support!