v1.2.0 is here and it's BIG, it's called The Nether Multiversal Update

Here is everything that was added, I seriously think I may have went overboard

• Made the old nether less messy
• Added the Overnether dimension, the nether with overworld terrain, it's portal igniter is crafted with two blaze rods and dirt
• Added the floating Nether, a variant of the nether with islands
• Added the Modded Overnether, a variant of the overnether but with modded biomes
• Added the Dark Nether, it is the same as the nether except it doesn't have ambient light, so if you're not near any light source, it can get pretty dark
• Added the Modded Dark nether, a variant with modded biomes
• Added the Acidic Nether, an expansion on the toxic wastes biome, it has 2 extra biomes as well, the Acidic deltas and plains, It also is littered with radioactive walkers, slimes, boggeds, zombies, and a new mob, the acidic walker.
• Added the Tropical Nether, a lush cave dimension that actually looks nothing like the nether, but it captures what the nether looked like in it's past after it melted from its ice age. It has two biomes, Lush Nether, a biome with scattered trees, looks like a lush cave, and the Nether Jungle, a densely forested area with a lot of life roaming around. You can find most of these portal igniters in the nether tower chests

New Blocks

• Smooth Glowstone
• Electric Glowstone
• Infected End Stone
• Infected Vines
• Infected Endium
• Corundum block
• Electric Grass
• Old Soul Sand
• Growing Lushios Sprouts

Oh you thought the end was untouched, well, the nether is seeping into the end realm now

• Infected Wastes end biome, the biome that came from hell itself

New mobs

• Nether Zombie, it comes in 3 variants, one with 26 health, the other with 28 health and looks more like the regular zombie if it was red, and the Leader Nether Zombie, it has 120 health and spawns with golden boots and a diamond sword, it also has a crown, if you attack it, it spawns reinforcements
• Acidic Walker, a new danger in the acidic biomes, killing it drops an acid ball which you can make armor and tools with, but you have to do so fast since the acid ball damages you
• Nether Creeper, a variant of the creeper that lives in the nether and explodes like a regular creeper

New ores

• Corundum ore, a light blue ore that doesn't have any real functionality, it can't make tools or armor
• Acidic ore now spawns more frequently and can only be found in the acidic biomes

Bug fixes

• Made the old nether less messy
• Fixed brown mushrooms not spawning in the old nether
• Fixed yellow terracotta not spawning in the nether desert
• Fixed Lushios trees, electric trees, incenerated trees, and wet trees not having the right shape, they now match the shape of the nether's trees/huge fungi
• Fixed The Electric trees and Lushios trees being more spread out than usual
• Generally made improvements to all the biomes

This update is being split into two parts, 1.3.0 will not add any new blocks or items, but it will add new structures for these biomes and dimensions, any blocks, items, biomes, or dimensions that I think are missing will be added in a bug fix update for 1.2.0