libxml2尚未更新以支持XSD 1.1。据我所知，该产品没有积极的发展，所以这是不可能发生。您将需要找到一个不同的模式处理器。

libxml2 has not been updated to support XSD 1.1. As far as I am aware there is no active development on the product so this is unlikely to happen. You will need to find a different schema processor.