SSimple Custom CSS and JS: version, compatibility and updates

Simple Custom CSS and JS is a WordPress plugin with 600,000+ active installs. The current version on WordPress.org is 3.54.3, last updated on 8 October 2026.

Facts from WordPress.org

Does Simple Custom CSS and JS work with WordPress 7.2?

Simple Custom CSS and JS says it was tested up to WordPress 7.1.4. It does not yet say it has been tested with WordPress 7.2. See the full WordPress 7.2 compatibility list.

What the plugin says about itself

Customize your WordPress site’s appearance by easily adding custom CSS and JS code without even having to modify your theme or plugin files. This is perfect for adding custom CSS tweaks to your site. Features Text editor with syntax highlighting Print the code inline or included into an external file Print the code in the header or the footer Add CSS or JS to the frontend or the admin side Add as many codes as you want Keep your changes also when you change the theme

Newest changelog entry

3.54.3 10/08/2026 Fix: check for user capabilities on two AJAX handlers.

Recent releases

Days are when each version's tag was created in WordPress.org's code repository.

Questions