# Upgrading from v3 to v4

**URL:** <https://forum.mautic.org/t/upgrading-from-v3-to-v4/23332>\
**Category:** Product Support\
**Created:** [March 28, 2022, 10:18pm UTC](https://forum.mautic.org/t/upgrading-from-v3-to-v4/23332 "2022-03-28T22:18:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![klandry1](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/klandry1/32/6653_2.png) [@klandry1](https://forum.mautic.org/u/klandry1)\
**Post date:** [March 28, 2022, 10:18pm UTC](https://forum.mautic.org/t/upgrading-from-v3-to-v4/23332/1 "2022-03-28T22:18:24Z")

</div>

**Your software**  
My Mautic version is: v3.1.2  
My PHP version is: 7.3.27  
My Database type and version is: mysqlnd 5.0.12-dev

**Your problem**  
My problem is: Is there a guideline for upgrading from v3 to v4 using the public Docker images [Docker Hub](https://hub.docker.com/r/mautic/mautic)? And also between minor releases?

These errors are showing in the log:

Steps I have tried to fix the problem: