PHP 7.4 Released – How to Prepare Your WordPress Website for the Update The PHP scripting language was recently updated with version 7.4. Since WordPress was written with PHP, the PHP version is also relevant for your website. With each new release, many scripts are optimized, which can have consequences for the security and performance of your WordPress website. The PHP version can be changed fairly easily with most hosters, but there are a few points you should consider before hand.