# Lastest version of API Library for Mautic 2.16.3 is API Libraray verion 2.16.1?

**URL:** <https://forum.mautic.org/t/lastest-version-of-api-library-for-mautic-2-16-3-is-api-libraray-verion-2-16-1/17528>\
**Category:** Product Support\
**Created:** [December 22, 2020, 9:14pm UTC](https://forum.mautic.org/t/lastest-version-of-api-library-for-mautic-2-16-3-is-api-libraray-verion-2-16-1/17528 "2020-12-22T21:14:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![olimits7](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/olimits7/32/3071_2.png) [@olimits7](https://forum.mautic.org/u/olimits7)\
**Post date:** [December 22, 2020, 9:14pm UTC](https://forum.mautic.org/t/lastest-version-of-api-library-for-mautic-2-16-3-is-api-libraray-verion-2-16-1/17528/1 "2020-12-22T21:14:48Z")

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**Your software**  
My Mautic version is: 2.16.3  
My PHP version is: 5.6.40  
My Database type and version is: 5.0.11

**Your problem**

Is the latest API Library version for Mautic 2.16.3 the following version?

> **[Release 2.16.1 · mautic/api-library](https://github.com/mautic/api-library/releases/tag/2.16.1)**
>
> s/tag/2.16.1

Also, the API Library 3.0 version won’t work with Mautic 2?

> **[Release 3.0.0 · mautic/api-library](https://github.com/mautic/api-library/releases/tag/3.0.0)**
>
> es/tag/3.0.0

Thank you!