Latest version of Gajim is 0.16

If your distribution doesn't have the latest version you are advised to use the source tarball

AgiliaLinux (MOPSLinux)

Archlinux

Debian GNU/Linux

Fedora

FreeBSD

Gentoo

Mandriva

openSUSE

PLD

Slackware

SourceMage

Ubuntu

Windows

ZenWalk

Other Linux / Source

AgiliaLinux:

Just mpkg-install gajim

Archlinux:

Just pacman -S gajim

Debian GNU/Linux:

If you use Debian unstable do apt-get install gajim
A daily package from mercurial is also built. To use it, remove gajim (apt-get remove gajim), add this line to your /etc/apt/sources.list:
deb ftp://ftp.gajim.org/debian unstable main
and install it by doing apt-get install gajim-nightly. You can get the GPG key of this package by installing gajim-dev-keyring package from the same repository. Just do apt-get install gajim-dev-keyring.

Fedora:

Just yum install gajim

FreeBSD:

Gajim is available in FreeBSD via FreeBSD ports. Just cd /usr/ports/net/gajim/ && make install clean. Find out more.

Gentoo:

Just emerge gajim

Mandriva:

Just urpmi gajim

openSUSE:

One click install for openSuSE 12.2, 12.3
For other versions, get it here

PLD:

Just poldek -U gajim

Slackware:

You can get the Slackware package of Gajim here.

SourceMage:

Just cast gajim

Ubuntu:

If you use Ubuntu universe repository do apt-get install gajim
If you want newer version of Gajim, you can also use this PPA

Windows:

There is a Gajim installer.

ZenWalk:

Just netpkg gajim

Other Linux / source:

The tarball version of Gajim is here. For information on how to build Gajim, see the README (in English).
If you want to use the last unstable development version, then you should checkout the mercurial repository.

Mercurial

The mercurial repository is available at this address: http://hg.gajim.org/gajim and viewable
here.

Under GNU/Linux

In order to download Gajim sources, here is what you have to do: You first have to install mercurial (apt-get install mercurial under Debian)
Then in a console, enter the following commands:

hg clone http://hg.gajim.org/gajim gajim

Install dependencies, and build Gajim. Please see the README (English) for details.

You can run Gajim by typing the following:

cd gajim and then ./launch.sh

Once you have the repository, you can update it periodically so it matches the latest version from the main repository with the following command:

hg pull && hg update

Under Windows

You first have to install mercurial for windows. In order to do that, download the binary here
Once mercurial is installed, the commands are the same with those under GNU/Linux. Only difference is instead of launch.sh you run launch.bat. Enter them in an MS-DOS command line and you're done.
To run Gajim, you need external libraries. You can find a tutorial on the way to install them On the Wiki.

Daily Snapshots

Everyday on 01:00 (GMT+1 time) gz tarballs are produced from mercurial. You can use them if hg is broken for you at the moment.
Here to get them.

Old releases

You'll find old releases of Gajim
here.