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# History
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[![Version ](https://img.shields.io/npm/v/@tiptap/extension-history.svg?label=version )](https://www.npmjs.com/package/@tiptap/extension-history)
[![Downloads ](https://img.shields.io/npm/dm/@tiptap/extension-history.svg )](https://npmcharts.com/compare/@tiptap/extension-history?minimal=true)
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This extension provides history support. All changes to the document will be tracked and can be removed with `undo` . Undone changes can be applied with `redo` again.
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## Installation
```bash
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# with npm
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npm install @tiptap/extension -history
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# with Yarn
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yarn add @tiptap/extension -history
```
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## Settings
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| Option | Type | Default | Description |
| ------------- | -------- | ------- | --------------------------------------------------------------------------------------------------------------------------------------------------- |
| depth | `Number` | `100` | The amount of history events that are collected before the oldest events are discarded. Defaults to 100. |
| newGroupDelay | `Number` | `500` | The delay between changes after which a new group should be started (in milliseconds). When changes aren’ t adjacent, a new group is always started. |
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## Commands
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| Command | Parameters | Description |
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| ------- | ---------- | --------------------- |
| undo | — | Undo the last change. |
| redo | — | Redo the last change. |
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## Keyboard shortcuts
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### Undo
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* Windows/Linux: `Control` `Z`
* macOS: `Cmd` `Z`
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#### Russian keyboard layouts
* Windows/Linux: `Control` `я`
* macOS: `Cmd` `я`
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### Redo
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* Windows/Linux: `Shift` `Control` `Z` or `Control` `Y`
* macOS: `Shift` `Cmd` `Z` or `Cmd` `Y`
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#### Russian keyboard layouts
* Windows/Linux: `Shift` `Control` `я`
* macOS: `Shift` `Cmd` `я`
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## Source code
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[packages/extension-history/ ](https://github.com/ueberdosis/tiptap/blob/main/packages/extension-history/ )
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## Usage
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< tiptap-demo name = "Extensions/History" > < / tiptap-demo >