Last night the WiX v3.9 Release Candidate 2 hit the web. If you're thinking there was a release candidate only a few weeks ago, you're right. We didn't necessarily plan to release a second candidate. However, thanks to those of you tested the last release we found a few things to fix up. So, please let's do it all again. Download, install, build your world. We expect this is it. WiX v3.9 is eminent.
If you'd like to know what's new, Bob enumerated the changes in this release candidate.