With this broad selection of packages, Debian once again stays true to its goal of being the universal operating system. It is suitable for many different use cases: from desktop systems to netbooks; from development servers to cluster systems; and for database, web, or storage servers. At the same time, additional quality assurance efforts like automatic installation and upgrade tests for all packages in Debian's archive ensure that Wheezyfulfills the high expectations that users have of a stable Debian release. It is rock solid and rigorously tested.
You can install Debian on computers ranging from handheld systems to supercomputers, and on nearly everything in between. A total of nine architectures are supported: 32-bit PC / Intel IA-32 (i386), 64-bit PC / Intel EM64T / x86-64 (amd64), Motorola/IBM PowerPC (powerpc), Sun/Oracle SPARC (sparc), MIPS (mips (big-endian) and mipsel (little-endian)), Intel Itanium (ia64), IBM S/390 (31-bit s390 and 64-bit s390x), and ARM EABI (armel for older hardware and armhf for newer hardware using hardware floating-point).
Want to give it a try?
If you want to simply try it without having to install it, you can use a special image, known as a live image, available for CDs, USB sticks, and netboot setups. Initially, these images are provided for the amd64 and i386architectures only. It is also possible to use these live images to install Debian. More information is available from the Debian Live homepage.
If, instead, you want to directly install it, you can choose among various installation media, such as Blu-ray Discs, DVDs, CDs, and USB sticks, or from the network. Several desktop environments — GNOME, KDE Plasma Desktop and Applications, Xfce, and LXDE — may be installed through CD images; the desired one may be chosen from the boot menus of the CDs/DVDs. In addition, multi-architecture CDs and DVDs are available which support installation of multiple architectures from a single disc. Or you can always create bootable USB installation media (see the Installation Guide for more details).
The installation images may be downloaded right now via bittorrent (the recommended method), jigdo, or HTTP; see Debian on CDs for further information. Wheezy will soon be available on physical DVD, CD-ROM, and Blu-ray Discs from numerous vendors, too.
Already a happy Debian user and you only want to upgrade?
Upgrades to Debian 7.0 from the previous release, Debian 6.0 (codenamed Squeeze), are automatically handled by the apt-get package management tool for most configurations. As always, Debian systems may be upgraded painlessly, in place, without any forced downtime, but it is strongly recommended to read the release notes as well as the installation guide for possible issues, and for detailed instructions on installing and upgrading. The release notes will be further improved and translated to additional languages in the weeks after the release.