# JuMP 0.21.5 released

**URL:** <https://discourse.julialang.org/t/jump-0-21-5-released/46976>\
**Category:** Optimization (Mathematical)\
**Created:** [September 21, 2020, 2:40am UTC](https://discourse.julialang.org/t/jump-0-21-5-released/46976 "2020-09-21T02:40:29Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![odow](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/odow/32/28685_2.png) [@odow](https://discourse.julialang.org/u/odow)\
**Post date:** [September 21, 2020, 2:40am UTC](https://discourse.julialang.org/t/jump-0-21-5-released/46976/1 "2020-09-21T02:40:29Z")

</div>

Dear all,

We are happy to announce the joint release of JuMP 0.21.5 and MathOptInterface 0.9.17! These releases are a mix of new features and some much needed performance optimizations. This should be a non-breaking release, please let us know if this isn’t the case by [opening a Github issue](https://github.com/jump-dev/JuMP.jl/issues/new/choose) or joining the [Gitter chat](https://gitter.im/JuliaOpt/JuMP-dev). We did have a couple of bugs that slipped into a short-lived release, hence the jump (if you will excuse us) from 0.21.3 to 0.21.5.

A blog post summarizing the changes is available here:

> **[JuMP 0.21.5 is released](https://jump.dev/blog/0.21.5-release/)**
>
> We are happy to announce the joint release of JuMP 0.21.5 and MathOptInterface 0.9.17! These releases are a mix of new features and some much needed performance optimizations. This should be a non-breaking release, please let us know if this isn’t...

Thanks to all the contributors for this release,  
Oscar