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# How to Report a Bug

Trolltech has set up a special mailing list, `qt4-preview-feedback`, for discussion of issues relating to the Qt 4 beta releases. To subscribe, send a message containing just the word subscribe to qt4-preview-feedback-request@trolltech.com. We encourage you to use this mailing list instead of `qt-interest` for Qt 4 specific issues. See http://lists.trolltech.com/ for more information on Trolltech's mailing lists, including archived discussions.

If you think you have found an actual bug in Qt, we would like to hear about it so that we can fix it. In that case, please send the bug report to qt-bugs@trolltech.com. Be aware that we cannot guarantee a personal reply for all bug reports.

Before reporting a bug, please check the Known Issues page on our web site to see if the issue is already known.

Always include the following information in your bug report:

1. The name and version number of your compiler
2. The name and version number of your operating system
3. The version of Qt you are using, and what configure options it was compiled with.

If the problem you are reporting is only visible at run-time, try to create a small test program that shows the problem when run. Often, such a program can be created with some minor changes to one of the many example programs in Qt's `examples` directory.

If you are a licensed customer, be aware that we cannot provide technical support for beta releases. Use the `qt4-preview-feedback` mailing list for questions related to the Qt 4 beta.