# FreeRTOS upgrade from version 8.x to 10.x

**URL:** <https://forums.freertos.org/t/freertos-upgrade-from-version-8-x-to-10-x/10326>\
**Category:** Kernel\
**Created:** [July 22, 2020, 3:21am UTC](https://forums.freertos.org/t/freertos-upgrade-from-version-8-x-to-10-x/10326 "2020-07-22T03:21:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![abhiburli](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/abhiburli/32/688_2.png) [@abhiburli](https://forums.freertos.org/u/abhiburli)\
**Post date:** [July 22, 2020, 3:21am UTC](https://forums.freertos.org/t/freertos-upgrade-from-version-8-x-to-10-x/10326/1 "2020-07-22T03:21:29Z")

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I am currently using FreeRTOSV8.1.2 in my software stack. I had few concerns.

1. I want to upgrade to latest stable version. Is V10.3.1 drop-in compatible with FreeRTOSV8.1.2?
2. If not which is the latest version which is drop-in compatible with FreeRTOSV8.1.2 with least/no migration efforts?

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**Author:** ![rtel](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/rtel/32/31_2.png) [@rtel](https://forums.freertos.org/u/rtel)\
**Post date:** [July 22, 2020, 5:02am UTC](https://forums.freertos.org/t/freertos-upgrade-from-version-8-x-to-10-x/10326/2 "2020-07-22T05:02:57Z")

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Here is the page that describes updating from 8.x.x to 9.x.x [https://www.freertos.org/FreeRTOS-V9.html](https://www.freertos.org/FreeRTOS-V9.html) - and likewise for upgrading from 9.x.x to 10.x.x [https://www.freertos.org/FreeRTOS-V10.html](https://www.freertos.org/FreeRTOS-V10.html)