Above is a small mod for 1.16.5 that adds a new sky-based dimension.
HOW DO I GET TO THE ABOVE?
Use two sticks (one in the upper middle, one in the lower middle) and an emerald (placed in the center of the crafting grid) to make a Magical Sicklestaff. Use this on a portal frame constructed of Warped Hyphae, and you've got yourself a portal to the Above!
ANY NEW BLOCKS?
Yes, two actually! The first is Soft Moss. It generates instead of Dirt on most of the islands. It's quite similar to a Honey Block in that it slows you down and halves your jump height, but you won't stick to pillars made of this. The second block is Dandelion Fluff. Clouds of this generate all throughout the Above. It has the same properties as Soft Moss.
ARE THERE ANY NEW BIOMES?
The Above's biomes are mostly those of the Overworld, but there is one new biome, the Greeflum Frumshmays. It consists only of Dandelion Fluff and Soft Moss.
If you really want to, you can watch the boring, horribly edited trailer here.