it's in the release notes for 6.5.0 : https://github.com/RocketChat/Rocket.Chat/releases/tag/6.5.0
where "access to the workspace will be restricted" should be read as "will be impossible".
trying to login, for administrators, will look like https://imgur.com/IHNzAGE
The automatic start of the trial of ee features was reported as https://github.com/RocketChat/Rocket.Chat/issues/31149 when people remarked that it incurred a 25 user limit with it.
@crystalmoon @doctormo
This bug report also contains statements from RC founder with corporate speech about privacy, but not backing down a bit on the fact that this *forces* self-hosted to register, give statistics, and accept the privacy policy and rocket chat corp terms of service.
Our fully self-hosted server now does "call home" from time to time to servers with names like "n07.svc.cloud.rocket.chat" (did not wireshark it) - no idea if it already did it before