ReactLink still using React.PropTypes.

[Jungeol]

Do you want to request a feature or report a bug?
BUG

What is the current behavior?
React에서 이미 deprecated된 React.PropTypes를 사용하고있다.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar (template: https://jsfiddle.net/84v837e9/).
https://github.com/facebook/react/blob/15-stable/src/addons/link/ReactLink.js#L62

What is the expected behavior?
Should use PropTypes from the prop-types package.

Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?
15.5.4