Every change to a diagram is recorded as a new version: when your AI changes the diagram, when you rename it, and when you restore an earlier version.
View a past version
- Open a diagram and choose Version history (バージョン履歴) in the right panel.
- Versions are grouped by date, newest first. The top one is the current version, marked Latest (最新).
- Choose the version you want to see.
While a past version is shown, a bar above the diagram says which version you’re viewing. Choose Show latest version (最新のバージョンを表示) to return to the current diagram.
While a past version is shown, these also reflect that version:
- The JSON tab
- The images from Download as PNG (PNG でダウンロード) and Download as SVG (SVG でダウンロード)
Download all diagrams as ZIP (すべての図を ZIP でダウンロード) always uses the latest versions.
Show changes
When you view a past version, a Show changes (変更箇所を表示) switch appears above the version list. While it’s on, the parts that changed in that version, compared with the version before it, are marked. The switch is on by default.
| Mark | Meaning |
|---|---|
| Added (追加) | Elements or arrows added in that version |
| Changed (変更) | Elements or arrows changed in that version |
Elements and arrows removed in that version can’t be drawn, so they’re listed in the version history under Elements removed in this version (このバージョンで削除された要素).
Restore an earlier version
- Show the version you want to go back to.
- Choose Restore this version (このバージョンに戻す).
- Confirm by choosing Restore (戻す).
Restoring records that version’s content as a new latest version. The content from before the restore stays in the version history, so nothing is lost.
You can also ask your AI to “restore the previous version.”
Good to know
- Only the document’s owner can see version history. People viewing through a shared link can’t.
- Deleting a diagram also deletes its version history.