Hello Keycloak Community!

The guidelines around tech-preview / preview features are clear in the documentation:
"Preview features are disabled by default and are not recommended for use in production. These features may change or be removed at a future release."

What is unclear to me is what the best way of interacting with the development community on questions like:

1. When is a feature expected to graduate to supported?
2. When is a feature at risk of being dropped?
3. Other than not being considered production ready, what does preview mean? Can we plan to use it in the future if it's working for us in a lower environment?

We're trying to make a decision on whether or not work with the token-exchange feature. We see active development and bugs being logged in the GitHub issue tracker, which gives us some confidence, but we'd like to know the best channel for navigating to production with these features, to plan our releases.

With that in mind, is there an open issue tracking token-exchange as a feature? If so, is there a Keycloak release coming up where it's expected to be in the supported phase? Finally, how does the community feel today about using token-exchange?

Thanks!
Connor