Warlock 2024 Guidelines. Warlock subclasses receive significant reworks, with each subclass gaining unique and flavorful abilities. The 2024 warlock also comes with an impressive and robust amount of customization by treating your eldritch invocations as an even larger smorgasbord of options.
Archfey and great old one have both been entirely rewritten, and celestial (new to the phb) and fiend both got. Many of these powers enhance your psychic abilities, altering the damage you cause, allowing you to speak telepathically and letting you get into the minds of your enemies.