"Until" isn't the right word here. At least the way I understand that, it means it stopped working in 0.5, which isn't true. Maybe just s/0.5/0.6/. Also, "The" shouldn't be capitalized. But also also, the name of the parameter isn't important. I would instead say something like "Prior to v0.6, the DOM node was passed in as the final argument. If you were using this, you can still access the DOM node by calling `this.getDOMNode()`."