YouTube is testing a new feature called “Reels” that'll be similar to the Stories you see on Snapchat and Instagram. Reels will be given their own tab & separate from a users main list of videos.

Now unlike Stories Reels won’t disappear after 24 hours and YouTube will let users have multiple Reels each with its own set of videos.

Making a Reel is simple, first you shoot a few quick videos up to 30 seconds each then you can add the usual mix of filters, music and text.

Source: https://www.theverge.com/2017/11/29/...ture-announced