# Upgrading jQuery to version 3.3.1

**URL:** https://meta.discourse.org/t/upgrading-jquery-to-version-3-3-1/82477
**Category:** Development
**Created:** [March 8, 2018, 3:37am UTC](https://meta.discourse.org/t/upgrading-jquery-to-version-3-3-1/82477 "2018-03-08T03:37:36Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [March 8, 2018, 3:37am UTC](https://meta.discourse.org/t/upgrading-jquery-to-version-3-3-1/82477/1 "2018-03-08T03:37:36Z")

</div>

I just upgraded jQuery from version 2.2.0 (2 years old) to 3.3.1.

Officially this drops support in jQuery for [IE 8 and below](https://jquery.com/browser-support/). In practice … well … jQuery have [been slow](https://github.com/jquery/jquery/blob/2d4f53416e5f74fa98e0c1d66b6f3c285a12f0ce/external/sizzle/dist/sizzle.js#L204-L212) nuking out old code.

There is an extensive guide about changes from the 2x line to the 3x line at:

> **[jQuery Core 3.0 Upgrade Guide | jQuery](https://jquery.com/upgrade-guide/3.0/)**
>
> jQuery: The Write Less, Do More, JavaScript Library

We are not the heaviest jQuery consumers so I am not sure how many of these things impact us.

If you notice anything weird and new on the client side, it may relate to this upgrade. Let us know.

[https://github.com/discourse/discourse/commit/420739e12c7fbf492f914d2c18ce73d501712c98](https://github.com/discourse/discourse/commit/420739e12c7fbf492f914d2c18ce73d501712c98)