# The role of config.idb in Ignition 8.3 and migrations from 8.1

**URL:** <https://forum.inductiveautomation.com/t/the-role-of-config-idb-in-ignition-8-3-and-migrations-from-8-1/115541>\
**Category:** Ignition\
**Tags:** ignition83\
**Created:** [May 14, 2026, 10:49pm UTC](https://forum.inductiveautomation.com/t/the-role-of-config-idb-in-ignition-8-3-and-migrations-from-8-1/115541 "2026-05-14T22:49:00Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [May 15, 2026, 12:00am UTC](https://forum.inductiveautomation.com/t/the-role-of-config-idb-in-ignition-8-3-and-migrations-from-8-1/115541/2 "2026-05-15T00:00:34Z")

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The IDB file is only used for migration. It can be deleted after upgrade.

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_[View the full topic](https://forum.inductiveautomation.com/t/the-role-of-config-idb-in-ignition-8-3-and-migrations-from-8-1/115541)._