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## 0.20.2

**`(internal):`** 增强额外属性序列化性能。

**`(internal):`** 在 SDK 中生成额外的额外属性测试。

**`(fix):`** 解决 `unknown` 类型代码片段的非确定性键排序问题。

**`(fix):`** 解决区分联合序列化问题。