Nether Update 1.16 notification saying it was here.

I logged into Minecraft today to see a notification at the top of my screen saying exactly this, The Nether Update is here! Check out the dark side of Minecraft! I was pretty excited so I didn't think of grabbing a screenshot. Sorry! I went into a new world and into the Nether but nothing was new. No new terrain, items, biomes, mobs, etc.