# Database format **URL:** \ **Category:** Gateway\ **Created:** [January 7, 2019, 11:35am UTC](https://community.ciphermail.com/t/database-format/658 "2019-01-07T11:35:47Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![m.erdmann](https://avatars.discourse-cdn.com/v4/letter/m/b9bd4f/32.png) [@m.erdmann](https://community.ciphermail.com/u/m.erdmann)\ **Post date:** [January 7, 2019, 11:35am UTC](https://community.ciphermail.com/t/database-format/658/1 "2019-01-07T11:35:47Z")
I've setup a new version 4.1.3.0 Virtual Appliance to replace our current appliance running version 3.1.1.1 I tried a backup and restore (which worked fine with previous similar upgrades) but none of the users/certs etc. were imported. Only 'system settings' were restored. In earlier messages in this list I read that the database used has been changed from Postgres to MariaDB, and that tools for conversion are available but: "We have tools to convert the database between versions but for now these are only available for customers with a support contract or who are using the Pro or Enterprise edition." I've set my hopes on the mention of 'for now' : any change the conversion tool will be available for customers without a support contract? Met vriendelijke groet / Regards, Michel Erdmann