December 2024 monthly summary for Tencent/tdesign-vue-next focusing on a critical UI correctness fix in the Dialog component. Implemented precise header DOM rendering so that the header is only rendered when there is actual header content or a close button, preventing empty header rendering when both are disabled. Added automated regression test to verify this behavior. This change improves UI reliability, consistency across dialogs, and reduces edge-case bugs impacting user experience. The release demonstrates solid regression testing, careful DOM conditioning, and maintainability improvements in the Dialog component.

November 2024: Delivered critical tree-related fixes across Tencent/tdesign-common and Tencent/tdesign-vue-next, emphasizing correctness with lazy loading and robust v-model binding. Refactored tree checked-state logic (isChecked) for accurate parent-child states in lazy-loading/onlyLeaf scenarios and added unit tests; fixed TreeSelect v-model binding under lazy loading when valueType is object by refactoring node data retrieval. These changes enhance reliability for large hierarchies, reduce edge-case bugs, and improve data integrity in asynchronous UI scenarios across both repos.