Please read the installation instructions before you start, so you dont't run into any problems.
To upgrade from previous versions of jforum is very easy and painless. We always work hard to make the process the easiest possible.
If you are going to upgrade your jforum installation, check out the instructions here.
If you ran into a problem, check out the bug reporting tool.
Don't forget to check out the installation instructions page.
The current version of jforum is the result of years of work of many people, who have spent thousands of hours developing the software, and is licensed under the terms of the BSD Open Source license.
Files for version 2.1.9 (stable)
Files for version 3.0 (beta)
To get the latest source code version, please check out http://github.com/rafaelsteil/jforum3