To safeguard the stability of your app and ensure a seamless experience for your end users, we have identified a critical compatibility risk. We are writing to urge you to upgrade your Bot App SDK to the latest version immediately.

1. Risk Description and Impact Scope

Alibaba Cloud WAF monitoring indicates that Apple is about to release iOS 26.4 (currently in Beta). Verification testing confirms that Bot App SDK versions 1.x through 3.x, currently integrated in your app, are incompatible with the iOS 26.4 Beta system.

Impact Symptoms: If the Bot App SDK is not upgraded, apps on your end users' devices may experience severe stability issues, such as crashes or force closures, once they upgrade to the iOS 26.4 system.

Scope of Impact: All iPhone users who upgrade to iOS 26.4 Beta and subsequent official releases.

2. Recommended Upgrade Timeline

Based on Apple's typical release cycle, the iOS 26.4 official version is expected to be rolled out to all users between March 24 and March 31.

To prevent potential impact on your online business and user reputation following the official iOS release, we strongly recommend the following:

Please ensure the Bot App SDK is updated to the latest version before March 24.

After completing the update, please submit your app for review as soon as possible and ensure it is released before the deadline.

3. How to Obtain the New SDK

Method 1 (Recommended): Submit a Support Ticket Please log in to the Console to submit a support ticket. Mark the title as [Bot App SDK Upgrade]. Technical support will send the latest SDK package immediately upon receiving the ticket.

Method 2: Contact via Support Group If you have joined a dedicated customer support group, please contact the technical support staff in the group directly to obtain the package.