You may or may not know that YouTube has a built-in video editor in its app. We’re banking on you not knowing this information as the streaming service cites this as a reason why they’re getting rid of it. YouTube announced that the built-in video editor and their photo slideshow features are both going away by September 20th. What will stay is the “Enhancements” feature that lets you do things like trim videos, add subtitles, cards, and filters, among other things.
Source: YouTube Help Forum