diff --git a/docs/vnodes.md b/docs/vnodes.md
index 317b9c47..cc6139bd 100644
--- a/docs/vnodes.md
+++ b/docs/vnodes.md
@@ -73,9 +73,11 @@ Property   | Type                             | Description
 `text`     | `(String|Number|Boolean)?`       | This is used instead of `children` if a vnode contains a text node as its only child. This is done for performance reasons. Component vnodes never use the `text` property even if they have a text node as their only child.
 `dom`      | `Element?`                       | Points to the element that corresponds to the vnode. This property is `undefined` in the `oninit` lifecycle method. In fragments and trusted HTML vnodes, `dom` points to the first element in the range.
 `domSize`  | `Number?`                        | This is only set in fragment and trusted HTML vnodes, and it's `undefined` in all other vnode types. It defines the number of DOM elements that the vnode represents (starting from the element referenced by the `dom` property).
-`state`    | `Object`?                        | An object that is persisted between redraws. It is provided by the core engine when needed. In component vnodes, the `state` inherits prototypically from the component object/class.
-`events`   | `Object?`                        | An object that is persisted between redraws and that stores event handlers so that they can be removed using the DOM API. The `events` property is `undefined` if there are no event handlers defined. This property is only used internally by Mithril, do not use it.
-
+`state`    | `Object?`                        | An object that is persisted between redraws. It is provided by the core engine when needed. In component vnodes, the `state` inherits prototypically from the component object/class.
+`_state`   | `Object?`                        | For components, a reference to the original `vnode.state` object, used to lookup the `view` and hooks. This property is only used internally by Mithril, do not use or modify it.
+`events`   | `Object?`                        | An object that is persisted between redraws and that stores event handlers so that they can be removed using the DOM API. The `events` property is `undefined` if there are no event handlers defined. This property is only used internally by Mithril, do not use or modify it.
+`instance` | `Object?`                        | For components, a storage location for the value returned by the `view`. This property is only used internally by Mithril, do not use or modify it.
+`skip`     | `Boolean`                        | This property is only used internally by Mithril when diffing keyed lists, do not use or modify it.
 
 
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