OK, let me take off the marketing hat for a little bit…
I get a lot of passionate requests for access to the private betas. All this enthusiasm from the Stacks community is amazing. You guys make it easy to put in the long hours to bring Stacks 4 to life. Thank you so much!!! 
Unfortunately building early releases, updating bug-lists, and writing release notes requires a ton of extra time and energy. I’d love to let everyone have access, but it would bury me in support and support costs.
But I would love to… 
But I can’t… 
But I really want to… 
But I shouldn’t… 
So…
I’ve created a patreon account. If you join you’ll help us cover these costs. In return it gives you early access to videos, early beta releases, and for the adventurous, you can even download the developer-only private beta release.
Yes, that means you can download Stacks 4 right now.
and, yes, obviously this does cost a bit extra.
I don’t expect this to be for everyone. In fact it’s probably just a few – and that’s perfect – limiting it a bit is the whole idea. But if you are passionate about Stacks we’d love for you to join in and come along for this ride.
Stacks 4 is getting pretty nice… 
And I’m getting so excited!!! 
And I think you’re going to love it. 
Warning: This really is a developer release. It really is buggy. And I really recommend keeping it away from important work. This should be used for testing only.
Download: Stacks v4.0.0 dev beta 20