As a streamer, communication with your community is tough.
When something changes for a Twitch streamer, they have to rely on other services to share news, with the drowning birdsite and Discord being the main ways.
Some people refuse to be in either of those places, which is fine. Other people simply don't see what's posted in these places or don't read them if they do.
All I can think to do is to spam places with the info repeatedly, but I hate doing that. π