# Version Upgrade Compatibility Handling of LetMagic Beauty SDK Under UniApp + ZEGO Audio & Video Tech Stack In one-on-one video social scenarios, audio and video fluency as well as beauty rendering quality directly determine user retention. Stable iterative updates of the technical stack serve as the core guarantee for continuous functional optimization. Featuring "write once, deploy across multiple terminals", UniApp has become a mainstream option for cross-platform audio and video application development. Combined with the low-latency and high-concurrency capabilities of the ZEGO Audio & Video SDK, developers can rapidly build high-quality video social scenarios. As an essential core feature of such scenarios, upgrading the beauty SDK version delivers more natural visual effects, richer adjustable parameters, and fixes potential performance defects existing in older releases. Nevertheless, cross-terminal compatibility issues during upgrades often pose major challenges for developers. Drawing on practical development experience, this article elaborates on compatibility solutions and step-by-step implementation procedures for upgrading the LetMagic Beauty SDK within the UniApp + ZEGO Audio & Video tech stack, helping developers complete iterative updates efficiently. ## Pre-Upgrade Core Preparation: Environment and Dependency Arrangement SDK version upgrade is far more than simply replacing the SDK package. Pre-upgrade environment verification and dependency sorting can eliminate most compatibility risks at the source. First, clarify the core goals of the upgrade: whether it targets fixing performance flaws in previous versions, adding new beauty adjustment parameters, or adapting to newer versions of UniApp or ZEGO Audio & Video SDK. Blind upgrades may lead to redundant functions or module conflicts. For environment verification, confirm that the basic project configuration meets the requirements of the new LetMagic SDK version. For UniApp projects, ensure the installed HBuilderX version is no lower than 3.0.0, which is a prerequisite for normal integration of native plugins. The ZEGO Audio & Video SDK version must match the target beauty SDK version; developers are advised to check official documentation first to confirm compatible version combinations. Mismatched versions between the core audio-video SDK and beauty plugin may cause stream publishing failures and abnormal video frames. In addition, sort out all native plugins currently referenced by the project, especially those related to audio-video capture and rendering, to rule out potential resource occupation conflicts with the upgraded beauty SDK.