Twitter's latest test lets users subscribe to a tweet's replies

Twitter in more recent months has been focused on making conversations on its platform easier to follow, participate in and, in some cases, block. The company's latest test, announced via a tweet ahead of the weekend, will allow users to subscribe to replies to a particularly interesting tweet they want to follow, too, in order to see how the conversation progresses. The feature is designed to complement the existing notifications feature you may have turned on for your "must-follow" accounts.