# 8.1 & 8.3 Compatible module

**URL:** <https://forum.inductiveautomation.com/t/8-1-8-3-compatible-module/114627>\
**Category:** Module Development\
**Tags:** ignition81, ignition83\
**Created:** [March 23, 2026, 6:24pm UTC](https://forum.inductiveautomation.com/t/8-1-8-3-compatible-module/114627 "2026-03-23T18:24:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Spencer\_Lommel1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/spencer_lommel1/32/78679_2.png) [@Spencer\_Lommel1](https://forum.inductiveautomation.com/u/Spencer_Lommel1)\
**Post date:** [March 23, 2026, 6:24pm UTC](https://forum.inductiveautomation.com/t/8-1-8-3-compatible-module/114627/1 "2026-03-23T18:24:34Z")

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I am working on an Ignition Module for 8.3 currently and have it almost completed and it’s working well. We are also looking into supporting 8.1 and were wondering if it’s possible to have a single `.modl` file that supports both 8.3 AND 8.1 in the same module.

I tried looking through the forum and found some posts about SDK compatibility and upgrade guides but nothing specifically mentioning if it’s possible to have a single module support both Ignition versions.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [March 23, 2026, 6:25pm UTC](https://forum.inductiveautomation.com/t/8-1-8-3-compatible-module/114627/2 "2026-03-23T18:25:56Z")

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No, prepare to maintain two separate branches and build two separate modules.