This is copied from the latest Android beta changelist. For what it's worth one of my groups has been converted so it seems to be happening. > Your Legacy Sign

This is copied from the latest Android beta changelist. For what it's worth one of my groups has been converted so it seems to be happening. > Your Legacy Signal Groups will be automatically upgraded to New Groups so they can get in on the new features we recently released, like admins, @mentions, group links, and more. Upgrades don’t happen all at once or instantly, and some groups may not upgrade for a while.