I have been following Meteor for years, and I always had my reservations about MongoDB oplog tailing. As I understand it, with the release of Meteor 3.5, oplog tailing has been replaced by change streams. I have always thought Meteor would benefit from moving oplog tailing to Redis, and after seeing the redis-oplog package, I assumed the Meteor team would see the benefit in using Redis for change tracking and maybe integrate redis-oplog officially to Meteor.