Magic Missile
You create three glowing darts of magical force. Each dart strikes a creature of your choice that you can see within range. A dart deals 1d4 + 1 Force damage to its target. The darts all strike simultaneously, and you can direct them to hit one creature or several.
Using a Higher-Level Spell Slot. The spell creates one more dart for each spell slot level above 1.
Magic Missile 5e 2024 vs. 2014 edition differences
Both versions create 3 darts dealing 1d4+1 force damage each, striking simultaneously, and can target multiple creatures. The 2024 version states "The spell creates one more dart for each spell slot level above 1," while the 2014 version says "when you cast this spell using a spell slot of 2nd level or higher, the spell creates one more dart." The core mechanics are essentially the same.