portainer/api/bolt/migrator/migrate_dbversion4.go

package migrator

func (m *Migrator) updateSettingsToVersion5() error {
	legacySettings, err := m.settingsService.Settings()
	if err != nil {
		return err
	}

	legacySettings.AllowBindMountsForRegularUsers = true
	return m.settingsService.UpdateSettings(legacySettings)
}