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Debian is under continual development. The latest release is Debian GNU/Linux 6.0.4. It is also (currently) known as '''[[DebianStable|stable]]''' or by its codename "[[DebianSqueeze|Squeeze]]". Debian is under continual development. The latest release is Debian GNU/Linux 6.0.5. It is also (currently) known as '''[[DebianStable|stable]]''' or by its codename "[[DebianSqueeze|Squeeze]]".

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Introduction

Debian is under continual development. The latest release is Debian GNU/Linux 6.0.5. It is also (currently) known as stable or by its codename "Squeeze".

Each version also corresponds to a set of named software repositories (at least one per CPU architecture).

At any given time, there is one stable release of Debian, which has the support of the Debian security team. When a new stable version is released, the security team will usually cover the previous version for a year or so, while they also cover the new/current version. Only stable is recommended for production use.

There are also two main development repositories unstable and testing which are continually updated during the development of the next stable release. The latest packages arrive in unstable (which always has the codename "Sid"). Packages are automatically copied from unstable to testing when they meet criteria such as lack of release-critical bugs, and dependencies being satisfied by other packages in testing.

End users should generally choose to run either stable or testing. Stable is recommended for applications requiring production-level stability and security (servers, firewalls etc) and is also recommended for those who are new to Linux. Testing is recommended for slightly more advanced users who want newer software on their desktops and who are capable of reporting and fixing bugs to help Debian.

You can also read choosing a debian distribution which discusses the pros and cons of choosing one Debian distribution over another and the overview of software for Debian Stable which describes common ways Debian stable is enhanced with newer software or otherwise given extended capabilities.

For more information, see the The Debian FTP archives chapter of the Debian FAQ.

Current Releases/Repositories

Also:

  • experimental - Not really a release, but a repository where packages are tested (experimented) if they are not suited for unstable.

  • backport - Not a release, but a repository for updated packages for stable.

Production Releases

Version

Code name

Release date

6.0

squeeze

February 6th 2011

5.0

lenny

February 14th 2009

4.0

etch

Apr 8th 2007

3.1

sarge

June 6th 2005

3.0

woody

July 19th 2002

2.2

potato

August 15th 2000

2.1

slink

March 9th 1999

2.0

hamm

July 24th 1998

1.3

bo

July 2nd 1997

1.2

rex

December 12th 1996

1.1

buzz

June 17th 1996

0.93R6

November 1995

0.93R5

March 1995

0.91

January 1994

Note: the point releases (like 6.0.1 and 6.0.2) are detailed in each distribution's page.

See also Debian History.

Release statistics

Version

Code name

Freeze length

Time from previous release

Time from next release up to EOL

Total lifetime

1.2

rex

178 days

1.3

bo

175 days

2.0

hamm

171 days

414 days

2.1

slink

125 days

228 days

76 days

601 days

2.2

potato

212 days

 525 days

346 days

1049 days

3.0

woody

383 days

703 days

389 days

1442 days

3.1

sarge

34 days

1053 days

357 days

1028 days

4.0

etch

258 days

671 days

366 days

1044 days

5.0

lenny

202 days

678 days

6.0

squeeze

184 days

722 days

In the above array, data closely following "current" releasing tendencies have been highlighted in green. What can be deduced from those data is that the "most-typical" Debian release:

  • endures a freeze cycle of 7 +/- 1 months before getting released.

  • is released about 2 years after the previous one (the often cited example of Debian Sarge being quite an exceptional event in Debian history).

  • leaves users about 1 year to upgrade to the next one once this latter itself gets released.

  • has (from release to the end of security updates) a total lifetime of about 3 years.

http://debian.semistable.com/releases.gif

Codenames

Releases of the Debian distribution have both traditional version numbers and codenames based on characters from the Pixar/Disney movie "Toy Story" (1995). Sid, as you may recall, was the evil neighbor kid who broke all the toys.