Joomla 3.x is the latest version of the popular open source content management system (CMS) and it was released in May of 2013.
Joomla 3.x is a significant update from the previous versions, with new features, improved performance, and new design elements.
One of the most significant changes in Joomla 3.x is the introduction of a new modular architecture. This allows for more flexible and customised installation and configuration options, as well as making it easier to update and upgrade.
Additionally, Joomla 3.x features a new front-end design, improved security features, and a wider range of extensions and plugins.
Overall, Joomla 3.x is a major update with many new features and improvements. If you are running an existing Joomla site, it is recommended that you upgrade to 3.x as soon as possible.
If you are planning to start a new Joomla site, then 3.x is a good choice as it has many features that are new or improved over previous versions.