Bugs and feature requests for the WiX Toolset are tracked on GitHub.
If you think you've encountered a bug in the WiX Toolset or want to request a new feature, first search the GitHub issue tracker to see if someone else has already reported it.
If nobody has, open an issue on GitHub and provide the following to help us narrow down, reproduce, and fix the problem.
Issues are triaged at biweekly online meetings, generally held every other Thursday at 9:30 AM Pacific time (UTC-7/UTC-8). Meeting requests are sent to the wix-devs mailing list. Highlights and a video recording of the meeting are posted after the meeting on the FireGiant blog.