Communities will have until May 30th to transition and migrate members to XChat, which has a limit of 500 members.

X's product head Nikita Bier today announced two product changes for organizing communities on X:

1. XChat now supports joinable links for groupchats. Create a public link & share direct to Timeline. With support for 350 members per chat (and growing), Groupchat Links are the fastest way to bring people together on X.
2. Due to declining usage, we're deprecating X Communities on May 6.

To migrate your Community's members, pin your groupchat link so people can join it over the next 2 weeks.

This is part of our broader effort to simplify the experience on X. Make no mistake: we are investing heavily in niche communities with the launch of Custom Timelines—and much more to come.

Source: X