It was on the roadmap in Q2 now appears to be gone. However, EH3 appears to have been released, though silently.
The support page (http://www.red-gate.com/supportcenter/P ... n%20Hunter
) shows version 3.0 in the header, but it does not seem to be listed under the .NET Developer tools in the products area.
This page (http://www.red-gate.com/supportcenter/C ... ion_Hunter
\\knowledgebase\\eh_limitations.htm) says new versions aren't being sold any longer but you can get v3 if you a have support contract and use Help/Check for Updates in EH2.1.
The .NET Dev Bundle download still only provides EH2.1.
It looks like EH3 may be retiring soon or is some sort of interim release to provide basic .NET4 support, possibly, until it can be revamped to remove some of the limitations mentioned in the KB article. Hard to say at this point.