I've just updated the Gumroad listing while assuming you'd be able to see it.
If that's not the case then I'll be handing out free copies to those that purchased on gumroad.
Just check your library on Gumroad to see if the listing is still there, if it is, click on it to see the content page and you should be able to download 2.0 there
If it isn't, please respond here or email me at npdoggo@gmail.com and I'll figure it out.