FreeBSD is under constant development between releases. Some people prefer to use the officially released versions, while others prefer to keep in sync with the latest developments. However, even official releases are often updated with security and other critical fixes. Regardless of the version used, FreeBSD provides all the necessary tools to keep the system updated, and allows for easy upgrade
![Chapter 26. Updating and Upgrading FreeBSD](https://cdn-ak-scissors.b.st-hatena.com/image/square/2ea9a85896580e9f415422ac2ddb117898b0d04a/height=288;version=1;width=512/https%3A%2F%2Fdocs.freebsd.org%2Fimages%2Flogo-164x164.png)