# Upgrading from v3 to v4 guidelines

**URL:** <https://forum.mautic.org/t/upgrading-from-v3-to-v4-guidelines/23435>\
**Category:** Mautic 4 Install/Upgrade Support\
**Created:** [March 31, 2022, 3:51pm UTC](https://forum.mautic.org/t/upgrading-from-v3-to-v4-guidelines/23435 "2022-03-31T15:51:10Z")\
**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 31, 2022, 3:51pm UTC](https://forum.mautic.org/t/upgrading-from-v3-to-v4-guidelines/23435/1 "2022-03-31T15:51:10Z")

</div>

**Your software** 3.1.2  
_My PHP version is_ : 7.3.27  
_My MySQL/MariaDB version is_ mysqlnd 5.0.12-dev  
**Updating/Installing Errors**  
_I am_ (delete as applicable): Installing / Updating  
_Upgrading/installing via_ (delete as applicable) : Web / Command Line

_These errors are showing in the installer_ :

_These errors are showing in the Mautic log_ :

**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?

_Steps I have tried to fix the problem_ :