How to Update jQuery to the Latest Version in WordPress


Is the version of jQuery running on your WordPress site up to date?

Your theme and plugins, as well as WordPress itself, are built on jQuery. An outdated version can put your website at risk.

In this article, we will show you how to update jQuery to the latest version of WordPress.

How to Update jQuery to the Latest Version in WordPress

Why upgrade jQuery to the latest version of WordPress?

Your WordPress website, as well as many plugins and themes you use, rely on JavaScript in combination with jQuery to create fast, interactive, and engaging functionality.

It is important to keep jQuery up to date to keep your website secure. The latest version fixes bugs and vulnerabilities from previous versions that can put your site at risk.

If you’re using the latest version of WordPress, you don’t need to manually update jQuery. It’s automatically done for you. But if you are using an older version of WordPress such as WordPress 5.4 or earlier, it is recommended to upgrade.

Also, if you have replaced the default WordPress jQuery with Google Library, it will not automatically update to the latest version.

Editor’s note: It is important to point out that updating jQuery may break old functionality of the plugin, so after updating you should test your website. In most cases this is not a problem, but if you have any problems you can easily roll back to the old version.

That being said, let’s take a look at how to upgrade jQuery to the latest version of WordPress. Here is what we will cover in this tutorial:

How to determine if your version of jQuery is outdated

You can easily find out which version of jQuery your website is running using your web browser’s Javascript console.

First, you will need to visit your website and then open the JavaScript console. If you are using Google Chrome, you can do this by selecting See ยป Developer ยป JavaScript Console from the menu.

Then you need to paste the following command in the console:

jQuery.fn.jquery

This command will show the version of jQuery your website is using.

Find out which version of jQuery your website uses

You should hopefully see version 3.5.1 or higher. If your website is running a version that starts with 1.7 or lower, you should definitely upgrade.

Method 1: Upgrade jQuery to the latest stable version

The jQuery update plugin updates jQuery to the latest official stable version. This is probably a newer version than the version that comes with WordPress.

First, you need to install and activate the jQuery Updater plugin. For more details, see our step-by-step guide on how to install a WordPress plugin.

Upon activation, your website will start running the latest version of jQuery. However, before seeing the change, you may need to clear your browser cache and WordPress cache.

The plugin includes the jQuery Migrate script for easy backwards compatibility. However, if you are having issues with some of your plugins, you can simply disable the jQuery Updater plugin to return your site to its original state.

Method 2: Check the version of jQuery running on your website

The Version control for jQuery The plugin allows you to control the version of jQuery running on your website. This allows WordPress users to run a stable WordPress website, and WordPress developers can check if their code works with different versions of jQuery.

To get started, you need to install and activate the jQuery Updater plugin. If you need help, check out our step-by-step guide on how to install a WordPress plugin.

Upon activation, the plugin will default to the latest jQuery preview. It also installs the jQuery Migrate script for easier backwards compatibility.

If you need, you can select a different version of jQuery by visiting the Settings ยป jQuery Version Control page.

Choose the version of jQuery you want to run

From here you can select which versions of jQuery and jQuery Migrate you want to run on your site. Be sure to click the “Save Changes” button to save your settings.

If the updated version of jQuery breaks some of your old plugins, you can simply select an older version from the drop-down menu. Alternatively, if you disable the Version Control for jQuery plugin, your site will revert to its original state.

We hope this tutorial helped you learn how to update jQuery to the latest version of WordPress. You might also want to learn how to increase your blog traffic or check out our list of the most common WordPress errors and how to fix them.

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The post How to Upgrade jQuery to the Latest Version in WordPress first appeared on WPBeginner.



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