NodeList is no more compatible with Array<Node>. Breaking change in 3.0

**TypeScript Version: Version 3.0.3** **Code** I didn't find any mentioning to this breaking change. This code used to compile in 2.9.2: ```ts /** * Array based implementation of NodeList */ class JSArrayNodeList extends Array<Node> implements NodeList { constructor(items?: Array<Node>) { if (items) { super(...items); } else { super(); } } public item(index: number): Node { return this[index]; } public copy(): JSArrayNodeList { return new JSArrayNodeList(this); } } ``` In 3.0 forEach method of NodeList and Array<Node> became incompatible. Due to this changeset: https://github.com/Microsoft/TypeScript/commit/7a7d04e126fb7c1c6074ef26657eddb0f32e4003 A solution was to add explicit forEach which delegates call to super: ```ts /** * Array based implementation of NodeList */ class JSArrayNodeList extends Array<Node> implements NodeList { constructor(items?: Array<Node>) { if (items) { super(...items); } else { super(); } } public forEach( callbackfn: ((value: Node, index: number, array: Node[]) => void) | ((value: Node, key: number, parent: NodeList) => void), thisArg?: any): void { // Just call Array.forEach Array.prototype.forEach.call(thisArg, this, callbackfn); } public item(index: number): Node { return this[index]; } public copy(): JSArrayNodeList { return new JSArrayNodeList(this); } } ``` **Expected behavior:** Documentation in breaking change list. **Actual behavior:** No information about breaking change.