# Mqtt version support on ignition 8.1.26

**URL:** <https://forum.inductiveautomation.com/t/mqtt-version-support-on-ignition-8-1-26/71825>\
**Category:** Ignition\
**Created:** [March 30, 2023, 12:59pm UTC](https://forum.inductiveautomation.com/t/mqtt-version-support-on-ignition-8-1-26/71825 "2023-03-30T12:59:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![chaoliang](https://avatars.discourse-cdn.com/v4/letter/c/ba8739/32.png) [@chaoliang](https://forum.inductiveautomation.com/u/chaoliang)\
**Post date:** [March 30, 2023, 12:59pm UTC](https://forum.inductiveautomation.com/t/mqtt-version-support-on-ignition-8-1-26/71825/1 "2023-03-30T12:59:53Z")

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I have installed ignition v8.1.26, but I didn't see the correct MQTT engineer and distributor for this version.

Instead I installed MQTT V4.0.15, which appears when I select Ignition V8.1.25.

Will it work?

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**Author:** ![craigb](https://avatars.discourse-cdn.com/v4/letter/c/9f8e36/32.png) [@craigb](https://forum.inductiveautomation.com/u/craigb)\
**Post date:** [March 30, 2023, 1:15pm UTC](https://forum.inductiveautomation.com/t/mqtt-version-support-on-ignition-8-1-26/71825/2 "2023-03-30T13:15:15Z")

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The versions you described is the same combination I use with no issues.

This details what's compatible but seems like it hasn't been updated in a while.

[https://docs.chariot.io/display/CLD80/Ignition+Compatibility+with+Cirrus+Link+Modules](https://docs.chariot.io/display/CLD80/Ignition+Compatibility+with+Cirrus+Link+Modules)

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**Author:** ![chaoliang](https://avatars.discourse-cdn.com/v4/letter/c/ba8739/32.png) [@chaoliang](https://forum.inductiveautomation.com/u/chaoliang)\
**Post date:** [March 31, 2023, 12:50am UTC](https://forum.inductiveautomation.com/t/mqtt-version-support-on-ignition-8-1-26/71825/3 "2023-03-31T00:50:14Z")

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Thanks for the info.

It's a new setup, maybe my setting is not correct. I will double check.