31:T433,## Comparing versions To see what changed between a given version and the latest one, click the button that appears when you hover over a history state. Any cell that is different between the two versions will show a comparison view.

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\n\n${await FileAttachment(\"restore-version.png\").image({width: 300, align: \"right\"})}\n\nIf you have edit access to the notebook, click the \"restore version\" button in the toolbar that appears at the top of the notebook when viewing and older version to restore the notebook to it.\n\n","pinned":false,"hidden":false,"mode":"md"},{"id":42,"value":"## Collaborative histories\n\nHistory is a great tool for [teams](/teams) and collaborative notebooks, because it shows everything that has happened in a notebook up to the current moment, including who made the edits. Hover over the small user bubbles to show details about the person who made the edit.\n\n${await FileAttachment(\"history-user.png\").image({width: 401})}\n","pinned":false,"hidden":false,"mode":"md"},{"id":0,"value":"## Forking from history\n\nNotebook history also allows you to explore ‘what-ifs’ by choosing a point in history to explore from. When using [the fork function](https://observablehq.com/@observablehq/fork-suggest-merge), the notebook is forked at the version you are currently viewing. Usually, this is the latest version, but if you're viewing an older version, the notebook gets forked from there.\n\nYou can work on your fork just like any other, and if you prefer it to the version in the original notebook, you can merge it back in.","pinned":false,"hidden":false,"mode":"md"},{"id":97,"value":"## Who can see history?\n\nOnly you and members of your team can see the history of private notebooks, which you created either in your personal or a [team workspace](https://observablehq.com/teams).\n\nThe history of public notebooks is visible to all visitors. When you publish a private notebook, its history becomes visible to anybody from the point where you published it (but not before). Note the first version number visible in [the history of this notebook](https://observablehq.com/@observablehq/learning-observable-observable-overview), v541, which is the first version after it was made public.\n\n${await FileAttachment(\"public-history.png\").image({width: 500})}","pinned":false,"hidden":false,"mode":"md"}],"files":"$W32","stdlib":"1","titling":"auto"}