WordPress.org

Andrew Ozz

Marius L. J.

With the update to WordPress 5.5, a migration tool known as <code>jquery-migrate</code> was no longer enabled by default. This may lead to lacking functionality or unexpected behavior in some themes or plugins that run older code.
This plugin serves as a temporary solution, enabling the migration script for your site to give your plugin and theme authors some more time to update, and test, their code.
With the update to WordPress 5.6, the included version of jQuery is also upgraded. This means that old code that previously caused warnings now may instead may cause errors or stop working entirely.
Some of the features no longer working will just stop working behind the scenes without any apparent problem.
The plugin will let you downgrade to a previous version of jQuery for a period, but as a site administrator you are encouraged to get the underlying issue fixed.

Enable jQuery Migrate Helper

Also lets you know when it's no longer needed!!!!

This is what I call going above and beyond. I would rate 10 stars if I could. You deserve it.

Love it, super simple - perfect solution

Get information about calls to deprecated jQuery features in plugins or themes.

Mark Jaquith

Peter Wilson

Andrew Nacin

Aaron Jorbin

This unofficial plugin provides fixes for selected WordPress bugs, so you don’t have to wait for the next WordPress core release. This does not mean you can stop updating WordPress! It just means that you’ll get a few selected fixes more quickly.
Recent fixes:
<ul>
<li>
WordPress 7.0
<ul>
<li>Add css to post.php and post-new.php to add <code>flex-wrap: wrap;</code> to <code>#major-publishing-actions</code>. See <a href="https://core.trac.wordpress.org/ticket/65286" rel="nofollow ugc">WP#65286</a>.</li>
</ul>
</li>
<li>
WordPress 6.9
<ul>
<li>Set sender as blank to workaround Sendmail issue when sendmail_from and -f are both used, see <a href="https://core.trac.wordpress.org/ticket/64368" rel="nofollow ugc">WP#64368</a>.</li>
</ul>
</li>
</ul>
Fixes are specific to your version of WordPress. It may be that your version of WordPress has no fixes. That’s fine. Keep the plugin activated and updated, in case you need it for a subsequent version of WordPress!
<h3>Complete Hotfix List</h3>
<ul>
<li>WordPress 7.0
<ul>
<li>Add css to post.php and post-new.php to add <code>flex-wrap: wrap;</code> to <code>#major-publishing-actions</code>. See <a href="https://core.trac.wordpress.org/ticket/65286" rel="nofollow ugc">WP#65286</a>.</li>
</ul>
</li>
<li>
WordPress 6.9
<ul>
<li>Works around issue where Sendmail fails due to <code>sendmail_from</code> and <code>-f</code> both being used.</li>
</ul>
</li>
<li>
WordPress 3.5
<ul>
<li>Lets you update Twenty Twelve if it is shown as “broken” after installing 3.5</li>
<li>Lets you update WordPress and install or update plugins and themes. (Only some Windows servers running IIS were affected.) You’ll need to <a href="https://codex.wordpress.org/Managing_Plugins#Manual_Plugin_Installation" rel="nofollow ugc">install this plugin manually</a>.</li>
</ul>
</li>
<li>
WordPress 3.4.2
<ul>
<li>Fix adding and updating Custom Fields</li>
</ul>
</li>
<li>
WordPress 3.3
<ul>
<li>Prevent plugin and theme styles from bleeding into the dashboard</li>
<li>Work around a bug for people without built-in JSON support</li>
</ul>
</li>
<li>
WordPress 3.2
<ul>
<li>Include JSON support for people with funky PHP setups</li>
</ul>
</li>
<li>
WordPress 3.1.3
<ul>
<li>Fix a bug that caused <code>post_status</code> to malfunction if passed an array</li>
</ul>
</li>
<li>
WordPress 3.1
<ul>
<li>Fix a bug that caused some taxonomy query manipulations (like excluding categories) to not work like they did before.</li>
</ul>
</li>
<li>
WordPress 3.0.5
<ul>
<li>Prevent KSES from overzealously stripping images and other advanced HTML from Administrator/Editor comments on display.</li>
</ul>
</li>
</ul>

Hotfix

Provides unofficial fixes for selected WordPress bugs, so you don't have to wait for the next WordPress core release.

Enable jQuery Migrate Helper vs Hotfix