Changes to pricing structure and what features are in the free plan?

A few weeks ago when I first checked the Pricing page, plans on the pricing page ranged from Free to Enterprise, each pretty equal. A week later free was de-emphasized, with Starter through Enterprise highlighted. Earlier this week it was down to Pro through Enterprise. The grid is still there, but the Starter plan is otherwise gone and the Free plan is barely visible.

I also created a community a week ago or so to try Discourse out with the email features. I successfully enabled “Email in” and received emails. I went back today and that’s now flagged as “Upgrade to unlock”. I’m pretty sure I previously had choices for category types, and now 2/3 of them are now also marked as requiring an upgrade. Looking at the pricing page, I don’t see anything obvious about email support or category types being a premium feature.

Are these indeed recent changes? What should I expect pricing to look like in a year? I’d hate to set up a new community and then discover that the pricing has changed and we can no longer afford it. Are these features actually being removed from the free plan? Is there anywhere I can see an overview of what features are in what plan? Was this announced anywhere? (I don’t obviously see a blog post, meta thread, What’s New? entry, or code change corresponding to these changes, which is disconcerting.)

Oh, interesting, I hadn’t realized how new the free plan is – You're invited to try the Discourse Free plan beta! - #14 by Moin – I guess that makes me a little less surprised by the changes.

At least the changes to the pricing page sound (unsurprisingly) intentional, though I’m not sure what to expect longer-term: No starter upgrade option - #8 by Crown1