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# Security Policy
## Supported Versions
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Only the [latest version ](https://codeberg.org/bookstack/bookstack/releases ) of BookStack is supported.
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We generally don't support older versions of BookStack due to maintenance effort and
since we aim to provide a fairly stable upgrade path for new versions.
## Security Notifications
If you'd like to be notified of new potential security concerns you can [sign-up to the BookStack security mailing list ](https://updates.bookstackapp.com/signup/bookstack-security-updates ).
## Reporting a Vulnerability
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If you've found an issue that likely has no impact to existing users (For example, an issue only in the development branch)
feel free to raise it via a standard Codeberg bug report issue.
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If the issue could have a security impact to BookStack instances,
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please directly contact the lead maintainer via email Dan Brown using the [details found here ](https://www.bookstackapp.com/links/contact/ ).
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Please be patient while the vulnerability is being reviewed. Deploying the fix to address the vulnerability
can often take a little time due to the amount of preparation required, to ensure the vulnerability has
been covered, and to create the content required to adequately notify the user-base.
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Thank you for keeping BookStack instances safe!