jchan

This adds Javascript search widgets to any droplists on the website. It allows users to search the contents of the list, and filter out items that do not match. Useful for longs or unsorted lists.
This has been tested on the following browsers: Safari, Firefox 2, Firefox 3, and IE6. There were problems with the appearance of the search textbox on certain browsers in the older version. That should be fixed now.
See http://joshuachan.ca/home/droplist-filter for demonstration.
<h3>Arbitrary section</h3>
Copyright 2008 Joshua Chan
This plugin acts as a wrapper for the Droplist Filter Javascript class, 
which is included with this package in the “droplistFilter” subdirectory. It 
is possible to use that independently from WordPress. See the documentation in 
the subdirectory for more information.
Any graphics images included with this package are for example purposes only 
and are copyright their respective owners.

Droplist Filter

This adds Javascript search widgets to any droplists on the website.

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.

Droplist Filter vs Enable jQuery Migrate Helper