If you haven't checked in with the latest iteration of Blue's Clues since the series launched in 2019, it's likely you don't know that the long-running Nickelodeon franchise has updated its content for a more modern age. In the new series, the Handy Dandy Notebook is essentially a reporter's notebook-style extension on a cell phone case, and while you still get to hear the mail song, it's remixed a bit, and usually the messages come via email. All of this is, it appears, a bridge too far for some now-adult fans of the original series, and when some of these details were highlighted on Twitter, the series trended.