# Possible Mautic M6 → M6 and M6 → M7 Upgrade Issue Related to Database Table Prefixes **URL:** \ **Category:** Mautic 7 Install / Upgrade Support\ **Created:** [March 11, 2026, 10:21am UTC](https://forum.mautic.org/t/possible-mautic-m6-m6-and-m6-m7-upgrade-issue-related-to-database-table-prefixes/37472 "2026-03-11T10:21:35Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![andrew\_c3](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/andrew_c3/32/13547_2.png) [@andrew\_c3](https://forum.mautic.org/u/andrew_c3)\ **Post date:** [March 11, 2026, 10:21am UTC](https://forum.mautic.org/t/possible-mautic-m6-m6-and-m6-m7-upgrade-issue-related-to-database-table-prefixes/37472/1 "2026-03-11T10:21:35Z")
Hello, Can I ask everyone in the community who has experienced Mautic upgrade errors—particularly when trying to upgrade M6 from one minor version to another or from M6 to M7 ? If you’ve struggled with the upgrade, could you please check whether you used the **Mautic database table prefix option** when you initially installed Mautic? I’m starting to suspect that **Mautic upgrades work correctly on databases that don’t use a table prefix, but may fail on databases that do use a prefix**. This is only a hypothesis at the moment, but gathering some real-world feedback from the community could help confirm whether there’s a pattern. If you have experienced upgrade errors, it would really help if you could reply with: - Whether your database **uses a table prefix or not** - Whether the **upgrade succeeded or failed** - Any **error messages** you saw during the upgrade Getting some statistics from the community could really help track down and refine this potential bug. Can I also ask the developers if they test upgrades work on database tables with and without a prefix ? Thanks in advance to anyone willing to check and share their experience!