# CMAQ and WRF version compatibility

**URL:** <https://forum.cmascenter.org/t/cmaq-and-wrf-version-compatibility/4878>\
**Category:** CMAQ\
**Tags:** cmaq\
**Created:** [April 23, 2024, 6:12am UTC](https://forum.cmascenter.org/t/cmaq-and-wrf-version-compatibility/4878 "2024-04-23T06:12:32Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![penguin](https://avatars.discourse-cdn.com/v4/letter/p/e480ec/32.png) [@penguin](https://forum.cmascenter.org/u/penguin)\
**Post date:** [April 23, 2024, 6:12am UTC](https://forum.cmascenter.org/t/cmaq-and-wrf-version-compatibility/4878/1 "2024-04-23T06:12:33Z")

</div>

Hello! What version of WRF should CMAQv5.4 be used with? Is WRFv3.9 OK? Where can I find information about matching versions of CMAQ to tools such as WRF?

---

<div class="post-metadata">

**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://forum.cmascenter.org/u/Ryan)\
**Post date:** [April 23, 2024, 9:27pm UTC](https://forum.cmascenter.org/t/cmaq-and-wrf-version-compatibility/4878/2 "2024-04-23T21:27:21Z")

</div>

> [@penguin](#):
>
> Is WRFv3.9 OK?

WRFv3.9 works fine. But remember to upgrade your WPS version to v4+ to avoid potential issues of older version of WPS.