What if you have discovered a bug or have a bright idea on how to improve Zabbix? Zabbix uses an issue tracker to record such things and track the resolution process. To access the Zabbix issue tracker, navigate to https://support.zabbix.com. Here, you can register and log in to search existing reports as well as enter new ones.

When reporting a new issue, choose the correct project—project ZBX is used for bug reporting, and project ZBXNEXT for new feature requests. It is strongly suggested you search the tracker before filing a new report—perhaps the problem has already been reported and there is no need to create duplicate reports.

What if you have resolved the issue yourself and have a patch for fixing a bug or implementing a feature? Just attach it to the corresponding report. You should discuss your approach with Zabbix developers before coding for all but the simplest cases—perhaps they are already working on it, or perhaps your approach will conflict with some other feature in development. Make sure to get familiar with the coding guidelines, too—they are available at http://zabbix.org/wiki/Main_Page.