There are a lot of reasons to choose Debian as your operating system – as a user, as a developer, and even in enterprise environments. Most users appreciate the stability, and the smooth upgrade processes of both packages and the entire distribution. Debian is also widely used by software and hardware developers because it runs on numerous architectures and devices, offers a public bug tracker and other tools for developers. If you plan to use Debian in a professional environment, there are additional benefits like LTS versions and cloud images.

An operating system is the set of basic programs and utilities that make your computer run. Debian uses the Linux kernel (the core of an operating system), but most of the basic OS tools come from the GNU project; hence the name GNU/Linux. The Debian Project is an association of individuals who have made common cause to create a free operating system. This operating system that we have created is called Debian GNU/Linux, or simply Debian for short.

If you are interested in giving Debian a try on your current computer without running any risk, please check out our Guide: Running Linux From a USB Drive As a Virtual Machine or Bootable Disk.

Debian systems currently use the Linux kernel. Linux is a piece of software started by Linus Torvalds and supported by thousands of programmers worldwide.

Is Debian free?

Debian is made of free and open source software and will always be 100% free. Free for anyone to use, modify, and distribute. This is our main promise to our users. It's also free of cost.

You may be wondering: why would people spend hours of their own time to write software, carefully package it, and then give it all away? The answers are as varied as the people who contribute. Some people like to help others. Many write programs to learn more about computers. More and more people are looking for ways to avoid the inflated price of software. A growing crowd contribute as a thank you for all the great free software they've received from others. Many in academia create free software to help get the results of their research into wider use. Businesses help maintain free software so they can have a say in how it develops – there's no quicker way to get a new feature than to implement it yourself! Of course, a lot of us just find it great fun.

Debian is so committed to free software that we thought it would be useful if that commitment was formalized in a written document. Thus, our Social Contract was born.

Although Debian believes in free software, there are cases where people want or need to put non-free software on their machine. Whenever possible Debian will support this. There are even a growing number of packages whose sole job is to install non-free software into a Debian system.

What's New

The Debian project is pleased to announce the sixth update of its stable distribution Debian 12 (codename bookworm). This point release mainly adds corrections for security issues, along with a few adjustments for serious problems. Security advisories have already been published separately and are referenced where available.

Please note that the point release does not constitute a new version of Debian 12 but only updates some of the packages included. There is no need to throw away old bookworm media. After installation, packages can be upgraded to the current versions using an up-to-date Debian mirror.

Those who frequently install updates from security.debian.org won't have to update many packages, and most such updates are included in the point release.

New installation images will be available soon at the regular locations.

Complete releases notes can be found here.