Debian GNU/Linux dapat diinstalasi dari aneka media seperti DVDs, CDs, USB sticks dan disket, atau melalui jaringan (netinstall). GNOME merupakan lingkungan desktop terpasang by default direkam di CD pertama, sementara K Desktop Environment (KDE) dan Xfce desktop dapat diinstalasi dari dua CD alternatif. Kini tersedia bersama Debian GNU/Linux 4.0 baik dalam CDs maupun DVDs multi-arch yang mendukung instalasi untuk beragam arsitektur dari sebuah cakram tunggal.
Rilis ini mengemas paket-paket software yang diaktualisasi termasuk K Desktop Environment 3.5 (KDE), versi 2.14 dari lingkungan desktop GNOME, Xfce 4.4, GNUstep desktop 5.2, X.Org 7.1, OpenOffice.org 2.0.4a, GIMP 2.2.13, Iceweasel (versi Mozilla Firefox 2.0.0.3 yang diganti namanya), Icedove (untuk versi Mozilla Thunderbird 1.5), Iceape (untuk versi Mozilla Seamonkey 1.0.8), PostgreSQL 8.1.8, MySQL 5.0.32, GNU Compiler Collection 4.1.1, Linux kernel versi 2.6.18, Apache 2.2.3, Samba 3.0.24, Python 2.4.4 and 2.5, Perl 5.8.8, PHP 4.4.4 and 5.2.0, Asterisk 1.2.13, dan lebih dari 18 ribu paket-paket software siap pakai lainnya.
The Debian project is pleased to announce the second update of its stable distribution Debian GNU/Linux 4.0. This update mainly adds corrections for security problems to the stable release, along with a few adjustments to serious problems. The installer has been updated to use and support the updated kernels included in this release. This change causes old 'netboot' and floppy images to stop working; updated versions are available from the regular locations. Other changes include stability improvements in specific situations, improved serial console support when configuring GRUB, and added support for SGI O2 machines with 300MHz RM5200SC (Nevada) CPUs (mips). Here is the full release announcement .
Distribution Release: Debian GNU/Linux 4.0r3
This update mainly adds corrections for security problems to the stable release, along with a few adjustments to serious problems. The installer has been updated to use and support the updated kernels included in this release. This update also includes stability improvements and added support for SGI O2 machines with 300 MHz RM5200SC (Nevada) CPUs. Flashplugin-nonfree has been removed, as this is closed source and we don't get security support for it. For security reasons, we recommend to immediately remove any version of flashplugin-nonfree and any remaining files of the Adobe Flash Player. Tested updates will be made available via backports.org.
Debian GNU/Linux 4.0r4a 'Etch-And-A-Half':
In addition to correcting several security problems and a few serious defects in the stable release, for the first time in Debian's history an update for a stable distribution also adds support for newer hardware by giving users the option to install newer drivers. Existing Debian GNU/Linux 4.0 installation CDs and DVDs can continue to be used to install this update. After installation, upgrading via an up-to-date Debian mirror will cause any out of date packages to be updated. However, users of the network-console installation method are strongly encouraged to update their media, see the "Debian Installer" portion of this announcement for more information. Those who install updates frequently from security.debian.org won't have to update many packages and most updates from security.debian.org are included in this update. Read the rest of the release announcement for a detailed list of all changes.
Katalog 
