In April 2019, WordPress updated their minimum PHP version from 5.2 to 5.6. This change allows us to use newer PHP features while still supporting the WordPress minimum PHP version. One of the features this makes available to us is PHP namespaces. Namespaces allow our code to peacefully co-exist with other people’s code. We’ll look at how to work with projects that use namespaces and how to use namespaces in our own code.