Version 1.9 turned The End into a full dimension.
Arrows and projectiles:
Players can now respawn the Ender Dragon using four End Crystals. Minecraft Wiki Arrows and Potions Ranged combat and alchemy received deep mechanical updates. Spectral Arrows:
Arrows can now be tipped with potions for special effects. Spectral Arrows create a glowing outline around targets, visible through blocks. 2. The End Expansion
: You can now craft arrows with potion effects, from poison to invisibility. Minecraft 1.9 - Everything Added in the 1.9 Combat Update