What is Bugzilla?

Bugzilla is a "Defect Tracking System" or "Bug-Tracking System". Defect
Tracking Systems allow individual or groups of developers to keep
track of outstanding bugs in their product effectively. Most commercial
defect-tracking software vendors charge enormous
licensing fees. Despite being "free", Bugzilla has many features its expensive counterparts lack. Consequently, Bugzilla has quickly become a favorite of hundreds of organizations across the globe.

Figure 5-1. Lifecycle of a Bugzilla Bug

Download

• How to get Bugzilla
• A Word on Version Numbers
• Stable Release
• Localized Templates
• Bugzilla Addons
• Stable Release Candidate
• Old Stable Release
• Legacy Release
• Archives
• CVS Instructions
• Third-Party Add-ons for Bugzilla

How to get Bugzilla

Bugzilla and all of its source code are available for download below. Bugzilla is
licensed under the Mozilla Public
License, and is thus both free and open source software.

Be sure to see the Installation and Configuration section of the
Bugzilla Guide (there's also a copy included in
the tarball).

If you want to know what's changed from one version to the next, view
the changelogs for Bugzilla (generated directly from the raw CVS checkin messages).

Note for upgraders: You can update to the newest release using the
CVS instructions below. This is a good way to update if you've
made local changes, as CVS will attempt to merge your changes with the
current release (although you may have to do some merging yourself if
it finds conflicts between what you changed and what we changed - see the
CVS documentation
for details on conflict resolution). Then, to complete your upgrade,
read the "How to Upgrade Bugzilla" section in your release
notes (included in the tarball as docs/rel_notes.txt).

A Word on Version Numbers

Bugzilla version numbers will be in the form of aa.bb or
aa.bb.cc.

Stable release versions of Bugzilla will have an even number for
bb. Any number in cc, if present, will indicate a bug-fix
(and/or security fix) update to the stable version.

Development versions always have an odd number for bb.
Development versions are released periodically, and cc only indicates
the passage of time since the previous version (how much time is up for
debate).

If you want a more stable release, you should use a tarball with an even
number in the bb position in the version number.

Stable Release (3.0.5)

Bugzilla 3.0.5 is our current stable release in
the 3.0 series.

An look at the new features in 3.0 can be found
on the 3.0
New Features page.

We encourage all users, especially upgraders, to read the
Release
Notes before installing Bugzilla 3.0.5.

Patches