MySQL is an open-source relational database management system used by millions of websites to store, manage, and retrieve structured data. It’s one of the most popular database systems in the world, with various applications ranging from small personal websites to large-scale enterprise systems.
MySQL supports multiple programming languages and powers everything from dynamic web applications to content management systems (CMSs), eCommerce platforms, and more.
Regarding WordPress specifically, the CMS is (in most cases) built using a combination of PHP and MySQL, where PHP handles the server-side processing, and MySQL manages the storage and retrieval of data.
The first version of MySQL was released in 1995, and the widely used version 5.7 was released in 2015. The most recent version of MySQL, version 8.0, was released in 2018 and will be supported through April 2026.
Since 2010, each version of MySQL has received official support for eight years after becoming generally available.
MySQL 5.7, released in October 2015, will reach end-of-life status in October 2023, meaning by November 1st, it will no longer be supported with security patches and upgrades.
Using the most current version of MySQL (version 8.0) will ensure your site is optimized for the future and protected against a greater number of threats.