# MQTT standard for FreeRTOS version 202002

**URL:** <https://forums.freertos.org/t/mqtt-standard-for-freertos-version-202002/21398>\
**Category:** Libraries\
**Created:** [September 13, 2024, 1:30pm UTC](https://forums.freertos.org/t/mqtt-standard-for-freertos-version-202002/21398 "2024-09-13T13:30:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ShubhamY](https://avatars.discourse-cdn.com/v4/letter/s/35a633/32.png) [@ShubhamY](https://forums.freertos.org/u/ShubhamY)\
**Post date:** [September 13, 2024, 1:30pm UTC](https://forums.freertos.org/t/mqtt-standard-for-freertos-version-202002/21398/1 "2024-09-13T13:30:20Z")

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What is the MQTT standard (for example MQTT v3.1.1) for FreeRTOS MQTT v2.1.1 (FreeRTOS version 202002, FreeRTOS kernel v10.3.0) ?

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**Author:** ![aggarg](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/aggarg/32/4245_2.png) [@aggarg](https://forums.freertos.org/u/aggarg)\
**Post date:** [September 13, 2024, 2:30pm UTC](https://forums.freertos.org/t/mqtt-standard-for-freertos-version-202002/21398/2 "2024-09-13T14:30:29Z")

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It is MQTT 3.1.1 as described here - [GitHub - FreeRTOS/coreMQTT at 6d5641b8a2f410470134d9bfe8ee71e3d83a565e](https://github.com/FreeRTOS/coreMQTT/tree/6d5641b8a2f410470134d9bfe8ee71e3d83a565e).