Download Debian 9.5(64-bit PC Network installer)


Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run.

Debian provides more than a pure OS: it comes with over 51000 packages, precompiled software bundled up in a nice format for easy installation on your machine. Read more...

The latest stable release of Debian is 9.5. The last update to this release was made on July 14th, 2018. Read more about available versions of Debian.

Getting Started


[05 Aug 2018] DebConf18 closes in Hsinchu and DebConf19 dates announced
[14 Jul 2018] Updated Debian 9: 9.5 released
[23 Jun 2018] Updated Debian 8: 8.11 released
[01 Jun 2018] Debian 7 Long Term Support reaching end-of-life
[10 Mar 2018] Updated Debian 9: 9.4 released
[09 Dec 2017] Updated Debian 8: 8.10 released

For older news items see the News Page. If you would like to receive mail whenever new Debian news comes out, subscribe to the debian-announce mailing list.

Security Advisories

[15 Oct 2018] DSA-4319 spice - security update
[15 Oct 2018] DSA-4318 moin - security update
[14 Oct 2018] DSA-4317 otrs2 - security update
[12 Oct 2018] DSA-4316 imagemagick - security update
[12 Oct 2018] DSA-4315 wireshark - security update
[11 Oct 2018] DSA-4314 net-snmp - security update
[08 Oct 2018] DSA-4313 linux - security update
[08 Oct 2018] DSA-4312 tinc - security update
[05 Oct 2018] DSA-4311 git - security update
[03 Oct 2018] DSA-4310 firefox-esr - security update

For older security advisories see the Security Page. If you would like to receive security advisories as soon as they're announced, subscribe to the debian-security-announce mailing list.