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Update from code changes: delete previews from a previous repository #7925

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ethanpalm merged 2 commits into from
Oct 22, 2026
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Update from code changes: delete previews from a previous repository #7925

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faadb21
docs: note automatic deletion of previews from a previous repository
mintlify[bot] Oct 21, 2026
e2b4350
Apply suggestion from @ethanpalm
ethanpalm Oct 22, 2026
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1 change: 1 addition & 0 deletions deploy/preview-deployments.mdx
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Expand Up @@ -118,7 +118,7 @@

### Existing previews when you turn on authentication

Previews created before you turn on [authentication](/deploy/authentication-setup) for your site keep the access settings they were built with. A preview without its own access restriction stays publicly accessible to anyone with the URL.

Check warning on line 121 in deploy/preview-deployments.mdx

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deploy/preview-deployments.mdx#L121 

In general, use active voice instead of passive voice ('were built').

When you turn on authentication for your production deployment, the **Existing preview deployments** setting controls what happens to these previews:

Expand All @@ -136,6 +136,7 @@

- **Automatic previews**: The preview for a pull request remains available while the pull request is open and after it's merged or closed, as long as the source branch still exists. When you delete the branch, the next dashboard sync removes the preview.
- **Manual previews**: Manual previews stay live until you delete them. Redeploying a manual preview refreshes its content against the latest commit on the specified branch.
- **Previews from a previous repository**: If you change the repository in your [Git settings](https://app.mintlify.com/settings/project/git-settings), previews built from the previous repository stop receiving updates. Mintlify automatically deletes them after seven days. If you switch back to the original repository before then, Mintlify keeps the previews.
- **Delete a preview**: On the [Previews](https://app.mintlify.com/publishes/previews) page of your dashboard, open the preview and click **Delete** to remove it immediately.

Preview URLs are unique per branch. If you delete a preview and later recreate one for the same branch, Mintlify may issue a new URL.
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