OK, let's start again.
How old is the 'new' wizard ? What is the MSI date ?
As you've already mentioned, 11/19/2013 (+/- 8 months ago)... Six days after Visual Studio 2013 was released.
OK, so it's not new, it's the original build.
I took your post to indicate there was an updated Wizard, and when I couldn't find it I asked the question. End of story.
... Thank you, that totally made my day.
No, it's not new, it's just whatever they put up as 'most current' for folks to download. Having started a new job back in January, I'm only now getting into any of this, and submitting Exchange app updates to support 2015 products.
Cheers