- Simplify DOM structure. [#4868](https://github.com/ant-design/ant-design/issues/4868)
- Fix that Radio should support number `0` as children. [#4874](https://github.com/ant-design/ant-design/issues/4874) [@HQidea](https://github.com/HQidea)
- Fix that RangePicker should work with `style.width` which is small than 300. [#4920](https://github.com/ant-design/ant-design/issues/4920)
- Fix CSS compile error caused by Spin. [#4915](https://github.com/ant-design/ant-design/issues/4915)
- Fix that Tooltip should work with disabled button in Chrome. [#4865](https://github.com/ant-design/ant-design/pull/4865)
- Fix UX of Tree while dragging. [#4858](https://github.com/ant-design/ant-design/issues/4858)
- Fix failed style of Upload. [#4810](https://github.com/ant-design/ant-design/issues/4810)
- Fix that `Menu[vertical]`'s SubMenu cannot popup in Layout.Sider. [#4890](https://github.com/ant-design/ant-design/issues/4890)
- Improve animation of Button and `Badge[status=processing]`.