כשל Bootstrap במהלך השדרוג האחרון

In this case, since our nightly backups are up to v3.0.0.beta15 (which worked ok up until now), should we rebuild with latest and attempt to restore that? Or, should we rebuild with that specific version and restore then upgrade to latest.

If you know of any documentation on installing a fresh version from a specific tag (like 3.0.0.beta15) I would appreciate any guidance.

thanks.