Issue triage
Remove RepairCommands from .NET Framework redistributable package groups, from @barnson, requests that the package groups in WixNetFxExtension not support repair. Repairing the .NET Framework is time consuming and almost always requires a reboot and it's usually not needed when repairing your own app. As this would be a behavior change, we took this issue into WiX v4.0.
The wix -binaries.zip and the wix installer use different folder structures, from @JohnLudlow, is a duplicate of an issue originally opened by rseanhall back in ought-14. We vacillated on how to fix this without breaking everyone and in the end decided to fix it in v4.0.
WIX - uninstall is not working when triggered from Apps & Features in Windows 10, from @ishaat, is another instance of a previously-reported issue running managed-code custom actions from the Windows 10 "modern" ARP (Apps & features). Unfortunately, this issue appears to be a problem WiX cannot work around.
Deprecate and remove Package element, from @barnson, is a feature request for a WIP I wrote to suggest that the Package element should go away in WiX v4.0. It's now open for discussion on the wix-devs mailing list.
Documentation website contains multiple errors, from @apacha, reports a couple of minor typos. I volunteered to deploy the typo-killer.