I got the email too. I was able to click the link in the HTML email (see attached screenshot).
Here is the link that the email takes one to:
http://unifiedcolor.com/download-hdr-expose-3I tried the new version for about 10 minutes. Firstly, when I went to the download page, you are required to enter your name, email address and fill in a Captcha.
Fine - I did that and the download started, except the resulting web page that renders after I clicked on the "Download HDR Expose 3 Installer" has a message near the top of the page (below the nav bar) that said something to the effect of "Captcha reuse detected" - does this mean I have aided some criminal syndicate in signing up for a robo-junk-mail account?
Also, the update included the advertised pano batch conditioning, etc.
I did a simple merge on a dataset that I use all the time to evaluate various aspects of HDR applications - it has issues in it that I see how well applications can handle, etc. The updated version of HDRExpose 3 made a merge that took the noisiest pixels from the shadow areas and even up into the darker mid tones - WTF? It is the exact opposite of what most HDR applications are able to do, including the previous version of HDR Expose 3.
Something is not right. I am going to call them and find out what the hell is going on - I rarely use this software, but I have been using HDR techniques for a very long time and I like to have my options - I have been using this product since it was HDR Photo Studio 1. Not good.
At this point, you are not missing anything, don't waste your time downloading it.
I can only imagine that my email account is going to be sending junk mail to the universe - you're welcome!
kirk